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Home My WebLink About5.D.1. Revisions to the Natural Resources Corridor Design Criteria-Res. No. 6878 e CITY OF SHAKOPEE S D. I. MEMORANDUM Mayor and City Council CO~ISt'~T To: "r' ~i\i' Mark McNeill, City Administrator From: Jamie Polley, Director Parks, Recreation & Natural Resources Meeting Date: March 17, 2009 (Tabled from March 3, 2009) Subject: Revisions to the Natural Resources Corridor Design Criteria INTRODUCTION: This agenda item seeks approval of the amended Natural Resource Corridor Design Criteria as recommended by the Environmental Advisory Committee. DISCUSSION: The EAC met to discuss the amended Natural Resources Corridor Design Criteria on November 6, 2008 and February 11, 2009. The City Attorney has reviewed the language of the document and ensures that it is consistent with other City Code documents. The following revisions were completed for consistency with the Natural Resources Plan element of the Comprehensive Plan and the Tree Management Regulations: . The woodland design criteria were revised. . The heritage tree definition was revised. . The woodland definition was revised. The following revisions were completed for consistency with the Natural Resources Prioritization Matrix: . The bluff definition was revised. . The steep slope definition was revised. The following revisions were completed to eliminate conflicts with potential development: . The tree removal and replacement requirements were revised. . The minimum design criteria for wildlife habitat were revised. . The minimum design criteria for steep slopes and bluffs between 10% were revised. . The definition of a Bluff Face was included. . The definition of a RidgelineNiewshed was included. CITY GOALS: D. Vibrant, resilient and stable. ACTION REQUESTED: If Council concurs, approve the Natural Resources Corridor Design Criteria as recommended by the EAC and offer Resolution No. 6878. RESOLUTION NO. 6878 A RESOLUTION OF THE CITY OF SHAKO PEE ADOPTING NATURAL RESOURCES CORRIDOR DESIGN CRITERIA WHEREAS, the Shakopee City Council adopted Ordinance No. 798, an ordinance amending City Code Section 12.24, Subdivision 2 relating to Design Criteria on May 20,2008; and WHEREAS, the Shakopee City Council adopted Resolution No. 6777 relating to the Natural Resources Corridor Design Criteria on May 20, 2008. NOW, THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF SHAKOPEE, MINNESOTA, 1. That it hereby approves and adopts the attached Natural Resources Corridor Design Criteria. 2. Such design criteria shall be kept on file at City Hall and shall be made available to the public. 3. That City Council Resolution No. 6777 is hereby repealed. Adopted in session of the City Council of the City of Shakopee, Minnesota, held this _ day of ,2009. John J. Schmitt Mayor of the City of Shakopee ATTEST: City Clerk I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/Q/2009 Table of Contents Executive Summary 3 Section 1 Definitions 5 Section 2 Design Criteria for Lakes and Streams 11 Section 3 Design Criteriafor Wetlands 15 Section 4 Design Criteriafor Woodlands 19 Section 5 Design Criteria for Upland Vegetation 25 Section 6 Design Criteriafor Wildlife Habitat 27 Section 7 Design Criteria for Endangered and Threatened Species 29 Section 8 Design Criteria for Steep Slopes and Bluffs 31 Section 9 Design Criteria for Recreation Opportunities 33 Section 10 Design Criteriafor Accessibility/Infrastructure 35 Section 11 Design Criteria for Connectivity 37 Appendix A Purpose and Goals of Design Criteria Appendix B Ecological Basis for Design Criteria Appendix C Design Criteria Photos Appendix D MnDNR 2005 Alternative Shoreland Standards Appendix E MnDNR Shoreline Alterations: Natural Buffers and Lakescaping Appendix F MnDOT Parcel 75: Oak Savanna Vegetation Management Plan Appendix G MnDNR A Prairie Restoration Handbookfor Minnesota Landowners Appendix H MnDNR A Handbook for Collecting Vegetation Plot Data Page 1 of37 I City of Shako pee Natural Resources Corridor Design Criteria 3/13/20093/1/2009 Page Intentionally Blank Page 20f37 I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/i/2009 Executive Summary The City of Shakopee has a diversity of high quality natural resources, natural systems and natural features that serve as the City's "green infrastructure." These resources comprise Shakopee's natural heritage, provide critical functions that sustain the developed portions of the City and shape the character of the City. While infrastructure sustains the community, it is not inherently self-sustaining. Like the rest of Shakopee's infrastructure (roads, water and wastewater systems, public buildings) green infrastructure must be considered within the subdivision and development process, and maintained via routine public investment. The following Natural Resources Corridor Design Criteria are divided into sections addressing specific natural features that were the basis for the composite Natural Resources Corridor map: Section 2: Lakes and Streams - Conserve water quality, provide flood control, retain and enhance the plant and animal communities associated with these ecosystems, and provide recreation and open space for people. Section 3: Wetlands - Conserve wetlands and the critical functions they provide in the ecosystem for water quality, flood control, habitat, recreation, and open space. Section 4: Woodlands - Conserve the various size woodland patches and reduce woodland fragmentation to better sustain ecosystem functions. Section 5: Upland Vegetation - Conserve the remaining native upland vegetation areas and encourage restoration efforts to take place to connect isolated, naturally vegetated locations. Section 6: Wildlife Habitat - Conserve existing wildlife habitat corridors and allow restoration efforts to connect these isolated areas. Section 7: Endangered and Threatened Species - Conserve the ecosystem upon which species classified as endangered, threatened, or of special concern depend for survival. Section 8: Steep Slopes and Bluffs - Conserve steep slope and bluff areas that help shape the community character for future generations. Section 9: Recreation - Enhance recreation to allow residents an opportunity to gain an . appreciation for natural resources. Section 10: Accessibilityllnfrastructure - Utilize existing infrastructure components of the City as part of the Natural Resources Corridor system. Section 11: Connectivity - Ensure recreational or natural resource connections between areas that do not have connections with natural features. The Design Criteria are intended to address connectivity issues. This requires conserving or restoring natural features and the functions and connections they have to other natural features. Page 3 of37 I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/4/2009 Page Intentionally Blank Page 4 of37 I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/1/2009 Section 1 Definitions For the purposes of the Natural Resources Corridor Design Criteria the following definitions apply. Nothing in these definitions is intended to modify other terms used in any other City code or City ordinance. 1. Applicant means any person proposing a Development. 2. Buildable area of land means the minimum contiguous area remaining on a lot or parcel of land after all setback requirements and buffers, bluffs and restricted steep slopes, easements and rights-of-way, historic sites, wetlands, and land below the ordinary high water level of public waters are subtracted for the purpose of placement of structures. 3. Bluff means a topographic feature such as a hill, cliff, or embankment having the following characteristics: a. The slope rises at least 25 feet in elevation above the toe of the bluff; b. The grade of the slope from the toe of the bluff to a point 25 feet or more above the toe averages 18percent or greater. c. A distance of 50 feet or more as measured vertically along the bluffface. d. A distance equal to or greater than 660 feet as measured horizontally along the most direct route of the top of bluff in the bluff face. The horizontal distance can extend beyond property lines. 4. Bluff face means the area between the toe of the bluff and top of the bluff. 5. Bluff impact zone means a bluff and land located within 50 feet from the top or the toe of a bluff. 6. Buffer is an area of natural, unmaintained, vegetated ground cover abutting or surrounding a wetland, watercourse, waterbody, habitat area, or other natural feature. 7. Conservation Easement is an easement granted in favor of the City and recorded with the County over, above, and below a parcel of land to permanently protect the environmental value of the land. 8. Conventional subdivision means a pattern of subdivision development that permits the division of land in the standard form where lots are spread evenly throughout a parcel with little regard for natural features or common open space as compared to a conservation subdivision where lots are clustered and common opens space is provided. 9. Conservation subdivision means a method of subdivision characterized by common open space and clustered compact lots, with the purpose of creating greater community value through open space amenities for homeowners and protection of natural resources, while allowing for the residential densities consistent with prevailing densities. Site designs incorporate standards of low impact development, such as the use of some single-load roadways and narrower rights-of-way, looped road-ways versus cul-de-sacs, maximum. road setbacks for structures, and preservation of trees, shoreline, unique resources, and scenic vistas, and these developments use stormwater designs that emphasize on-site retention and infiltration through the preservation of native vegetation within the shore impact zone, use of pervious surfaces, rain gardens, and swales. 10. Core habitat area means the central area of a patch of habitat which maintains the habitat's pre-fragmentation conditions. Page 5 of37 I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/4/2009 11. Corridor Connections means a corridor that provides residents and natural resources an opportunity to travel between natural resource areas identified on the Natural Resources Corridor map. 12. Diameter.at Breast Height, or DBH, means the length of a straight line through the trunk of a tree (in inches) measured at 54 inches above the ground from the uphill side of the tree. 13. Development means any activity for which a preliminary plat, minor subdivision, conditional use permit, variance, building permit, or grading permit is required. 14. DripJine means an imaginary vertical line that extends from the outermost branches of a tree's canopy to the ground. 15. Easement means a limited property right to make use of a parcel or lot owned by another person, such as a drainage and utility easement or conservation easement. 16. Ecosystem means the whole of the environment (physical, chemical, and biological) and the organisms which interact within that system. 17. Edge habitat means the outlying areas of a patch of habitat which may be disturbed by human activities and may have different wind, sun, and rain exposure than core habitat areas. 18. Endangered Species is a species threatened with extinction throughout all or a significant portion of its range in Minnesota. 19. Fragmentation means the process that occurs as people use the land resulting in the natural landscape being divided into ever-smaller pieces by transportation and utility corridors and residential, commercial and industrial land uses. The remaining natural areas, or fragments, are reduced in size and degraded in quality, resulting in a decline in plant and animal populations, and the disappearance of sensitive plant and animal communities. Fragmentation Figure . 100 75 75 .. 50 f "' . :1 ~:," E ~~ 15' 1; (;,} ;'lJ q m 0 25 25 50 ~. Q Figure th>tn t~ip:h, an4 FtJf?st&-_ -it .htntJt C. Grll.el1 and wiN [)cpt nf'f'{antnd Proportion t11 hab,iIlt tema,nll)~1 ('~S) h Jt R~~s{)HrC(:$. 1995, Stat{; oflvHnnt~-sohL ;f "" f/.rld lass ()l Iwlri I at. Them (UP threshold lUluiUtl relfuirenu:nls. Ila{,ital wmeralists art! ltellcr a4f11Jfi'4f la SJlnU1M (,ida/fINljimn A ndnm 1994.) Page 6 0[37 I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/4/2009 20. Habitat means areas that sustain native species of plant or animal by providing necessary resources which may include shelter, food, protection, or reproduction areas. 21. Habitat buffer zone means undeveloped or agricultural areas surrounding a wildlife corridor or habitat area intended to provide edge habitat and protect the wildlife corridor from human disturbances. 22. Heritage Tree means a tree in fair or better condition meeting the following criteria: a. Is a deciduous tree; b. Has a DBH equal to or greater than 24 inches (a lesser size tree may be considered to be a Heritage Tree if it is a rare species or can be utilized as a focal point in the project; c. Has a life expectancy of greater than 10 years; d. Has structural integrity and shows no visible defects that would cause it to be classified as a Hazard Tree; 23. High quality vegetation means those areas identified in the Scott County MLCCS land cover survey with native vegetation and rated as "better" or "best" sites in the Shakopee Natural Resources Corridor maps. 24. Highly erosive soils means those soils designated as highly erosive in the Scott County Soils Survey database and maps. 25. Infrastructure means roads, driveways, parking lots, wastewater, stormwater conveyance, water, electric, gas, or telecommunications equipment, pipes or associated support structures. 26. Intensive vegetative clearing means the removal of trees or shrubs, or perennial native grasses in a contiguous patch, strip, row, or block. 27. Minnesota Land Cover Classification System (MLCCS) means the land cover classification system created by the Minnesota Department of Natural Resources and the completed land cover survey data collected and mapped by Scott County consistent with the MLCCS. The classification system consists of five hierarchical levels. Levels 1, 2, and 3 are a hybrid based on the National Vegetation Classification System and the Minnesota Natural Heritage plant communities data. Levels 4 and 5 use the Minnesota Natural Heritage system to more explicitly identify plant community types. 28. Minnesota Routine Assessment Method (MnRAM) is a wetland functions assessment tool created in Minnesota by an interagency workgroup in 1991 to help local officials make sound wetland management decisions based on data gathered in the field. This tool evaluates the following functions of a wetland and establishes a value of exceptional, high, medium, or low for each function (MnRAM Comprehensive General Guidance document, Board of Water and Soil Resources): 1. Vegetative Diversityllntegrity 2. Maintenance of Characteristic Hydrologic Regime 3. Flood/Stormwater/ Atten uation 4. Downstream Water Quality 5. Maintenance of Wetland Water Quality 6. Shoreline Protection 7. Maintenance of Characteristic Fish Habitat Page 7 of37 I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/412009 8. Maintenance of Characteristic Amphibian Habitat 9. Aesthetics/Recreation/Education/Cultural 10. Commercial Uses 11. Groundwater Interaction 12. Wetland Restoration Potential 13. Sensitivity to Stormwater and Urban Development 14. Additional Stormwater Treatment Needs 29. Natural Resources Corridor Map refers to the most recent version of the Shakopee Natural Resources Corridor map approved by the Shako pee City Council. 30. Natural Resource Prioritization Matrix (NRPM) refers to the matrix system created by the Shako pee Environmental Advisory Committee to evaluate natural features for the creation of the Natural Resources Corridor map. The NRPM is included in the Natural Resources Plan component of the Comprehensive Plan. 31. Native vegetation means plants and plant communities that occur naturally in the Shakopee area. 32. Patch means a relatively homogeneous type of habitat that is spatially separated from other similar habitat and differs from its surroundings. (Forman, R. 1995. Land Mosaics: The Ecolo of Landsca e and Re ions. Cambrid e Universit Press, Cambrid e. 1~ IilCORE l1w fuwiro.!ll)leU1~ll tnwlttule. Z003. Wifshil1glon D.C. . EOOE >SBN #1-5857MlS5-7.. PatDII.......d __..The ..edBe to Interior ~tJ'O 0.1 ,ahsbl' tm patch 1$.sfflKlt:tKI by patch shape. . A more convoluted. irre,ular. or Jlnear patchwlll.h.svs Il hl8hsrpr{1portionDf~. thus.lncreasin, tht!l number Q" edgss,:Jeclss,snddooresslnllthe .numt>eror interior . sP6cles , Page 8 of37 I City of Shako pee Natural Resources Corridor Design Criteria 3/13/20093/1/2009 33. Recreation opportunities means an area that provides residents recreating an opportunity to interact with natural resources in the Natural Resources Corridor. 34. RidgelineNiewshed means an area with a slope that is equal or greater than 18 percent that has a length of more than 660 feet as measured horizontally along the most direct route of the area that would be. considered the bluff face. 35. Right-of-way is a narrow length of land used for the route of a railroad, electric power line, or public road. 36. Riparian refers to living or being located on the bank of a natural watercourse or sometimes of a lake. 37. Riparian Rights are the legal rights of a landowner owning riparian land. 38. Setback is the minimum horizontal distance between a structure or other specified item such as a wetland boundary. 39. Slope refers to the continuous inclination of the land surface for a distance of at least 50 feet, when measured perpendicular to the contour line. Most often slope is defined as the percentage related to the inclination. For example, a 25percent slope would have a one foot rise in land for every four feet of horizontal distance (see diagram below). 1 ft rise/4 ft distance = 0.25 l~t~ 0.25 *100 = 25percent slope 4 Ft Not to Scale 40. Special Concern Species is a species not listed as endangered or threatened, but is considered extremely uncommon in Minnesota or has unique or highly specific habitat requirements and deserves careful monitoring of its status. Species on the periphery of their range that are not listed as threatened may be included in this category along with those species that were once threatened or endangered but now have increasing or protected, stable populations. 41. Steep slope means lands with the following characteristics: a. Average slopes equal to or greater than 18percent. b. A distance of 50 feet or more as measured vertically along the bluff face. c. A distance equal to or greater than 660 feet as measured horizontally along the most direct route of the top of bluff in the bluff face. The horizontal distance can extend beyond property lines. 42. Threatened Species is a species likely to become endangered within the foreseeable future throughout all or a significant portion of its range within Minnesota. 43. Toe of the bluff means the lower point of a 50 foot segment with an average slope exceeding 18percent. 44. Top of the bluff means the higher point of a 50 foot segment with an average slope exceeding 18percent. 45. Tree means a living specimen of a woody plant species that is either' a deciduous tree whose diameter is 6 inches or greater at DBH, or a coniferous tree whose height is 12 feet or greater. 46. Wetland means the lands transitional between terrestrial and aquatic systems as defined in the Minnesota Wetland Conservation Act (WCA). Page 9 of37 I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/1/2009 47. Wetlands, Exceptional Value are exceptional and highest functioning wetlands or those sensitive wetlands receiving conveyed storm water runoff that have yet retained a medium level of vegetative diversity/integrity according to the MnRAM 3.0 evaluation. These wetlands are most susceptible to human impacts, are most unique, have the highest community resources significance such as rare species habitats, and similar characteristics. 48. Wetlands, High Value are high quality wetlands according to the MnRAM 3.0 evaluation. These wetlands are relatively undisturbed but exhibit evidence of more disturbance or degradation than Exceptional Value wetlands. High Value wetlands have conditions and functions that are susceptible to human impacts, are connected to other wetlands or watercourses, and may contain locally significant or rare w~tland types. 49. Wetlands, Medium Value are wetlands that provide medium functional levels according to the MnRAM 3.0 evaluation. These wetlands typically provide a diversity of habitats, are connected to other wetland or upland habitats to provide wildlife habitat, and often provide the optimal restoration opportunity. 50. Wetlands, Low Value are wetlands that have been substantially disturbed according to the MnRAM 3.0 evaluation. These wetlands tend to be less susceptible to further impacts than the other wetland management classifications. They also have low vegetative diversity/integrity and no connectivity to other wetlands and watercourses. 51. Wetland Boundary is the delineation between upland and wetland determined according to the United States Army Corps of Engineers Wetland Delineation Manual (January 1987). The wetland type must be determined according to United States Fish and Wildlife Service Circular No. 39 (1971 edition). 52. Wetland Conservation Act (WCA) became effective January 1, 1992, to A) achieve no net loss in the quantity, quality, and biological diversity of Minnesota's existing wetlands; B) increase the quantity, quality, and biological diversity of Minnesota's wetlands by restoring or enhancing diminished or drained wetlands; C) avoid direct or indirect impacts from activities that destroy or diminish the quantity, quality, and biological diversity of wetlands; and D) replace wetland values where avoidance of activity is not feasible or prudent (Minnesota Rules Chapter 8420). 53. Wetland Delineation Report is the proof submitted to the local government unit in compliance with Chapter 8420.0225 of the WCA identifying the wetland boundary. 54. Wetland Replacement Plan is an application form supplied by the applicant proposing wetland impacts. The components of the plan must be in compliance with the requirem~nt of Chapter 8420.0530 of the WCA. 55. Wildlife corridors are linear landscape features composed of native vegetation that connect two or more habitat patches to allow for the movement of animals, birds and other species. 56. Wildlife habitat areas means areas identified as better or best wildlife habitat on the Natural Resources Corridor Wildlife map. 57. Woodland means the area within the contiguous dripline created by a grouping of woody plant species if the grouping contains at least 1 tree. Page 10 of37 I City of Shako pee Natural Resources Corridor Design Criteria 3/13/20093/4/2009 Section 2 Design Criteria for Lakes and Streams A. Areas Subject to the Design Criteria. The Design Criteria for lakes and streams address all waters and drainageways within the Natural Resources Corridor map regulated by the Minnesota Department of Natural Resources, local watershed districts, local watershed management organizations or City of Shakopee. B. Principles for Design Criteria. The minimum Design Criteria for lakes and streams are created to meet the following criteria: 1. Ensure the ongoing functioning of natural systems to manage stormwater. 2. Protect habitat areas at the critical water/land juncture. 3. Require minimum primary and secondary buffers to lakes and streams 4. Protect existing vegetation and require vegetation restoration where warranted. 5. Protect opportunities for public access, trails, and other recreation. C. Minimum Design Criteria for Lakes and Streams. The following minimum Design Criteria are derived from the Department of Natural Resource's 2005 Alternative Shoreland Management Standards. The Alternative Standards incorporate the most current natural resource science research on protecting natural shoreland functions while still allowing development along lakes, rivers, and streams. The standards shall apply to lake and stream shoreland areas identified on the Natural Resources Corridor map. 1. Suitability Design Criteria. Subdivision of land within lake and stream shoreland areas must ensure that each proposed lot meets suitability design criteria. a. Sewered lots shall have a minimum of 8,400 square feet of buildable area per dwelling unit. b. Unsewered lots shall have a minimum buildable area of 17,400 square feet per dwelling unit. c. Proposed subdivisions that include stream or river shoreland areas must also meet the above design criteria for lots that are within 300 feet of the OHWL 2. Primary and Secondary Buffers. The total buffer (building setback) between OHWL and any building in the shoreland area shall be no less than100 feet and shall be greater as described below, or when the Shoreland Overlay requires a larger setback. The buffer shall include a minimum of 50 feet for the primary buffer (shore impact zone), and 25 feet of secondary buffer. For shoreland areas within the Natural Resources Corridor map designated as Better or Best, the following buffer requirements shall be met: a. Better shoreland areas shall have a total buffer of at least 100 feet, including at least 50 feet of primary buffer. b. Best shoreland areas shall have a total buffer of at least 150 feet, including at least 60 feet of primary buffer. i A conservation easement shall be placed on the primary buffer, and the primary buffer must be monumented to identify the border of the easement. Page 11 of37 I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/'1/2009 ii A larger primary buffer is, at the City of Shakopee's discretion, a mitigating factor for reducing the total buffer/setback distance, if also allowed under the Shoreland Overlay. In no case.shall the buffer/setback be less than 100 feet. c. For shoreland with either the Better or Best designations the City of Shakopee may, at its own discretion, use buffer averaging to modify buffer requirements in order to best protect the shoreland and water resources. 3. Open Space Requirements for Lakeshore Subdivisions. All subdivisions that will result in five or more development lots shall include open space areas to be permanently protected. a. Conventional subdivisions shall provide for open space by increasing the lot size to be a minimum of 50percent larger than the minimum lot size allowed in Shakopee's shoreland overlay. b. Conservation subdivisions shall retain the full development rights of the shoreland overlay, provided that development site has enough buildable land to meet suitability requirements. Conservation subdivisions shall meet the open space design and protection requirements and the vegetation management standards of the Department of Natural Resource's 2005 Alternative Shoreland Management Standards, or most recent version. 4. Vegetation Management Requirements. No vegetation removal is allowed in the primary buffer (the shore impact zone), except as approved by the City of Shakopee in a vegetation management plan for shoreland restoration. Each riparian lot may also clear a 20-foot wide access area at the shore, not more than 15 feet long, and a path area not more than six feet wide through the primary buffer. For shoreland areas designated better or best the following additional design criteria shall apply: a. New riparian lots shall have restored primary buffers, if the existing shore impact zone is disturbed or vegetated with turf grass or non-native vegetation. The shore restoration shall meet the requirements of the Scott County Soil and Water Conservation District or Minnesota DNR standards for shoreland restoration. b. Approvals for variances, rezonings, or conditional uses for existing riparian lots shall include shoreland restoration for the primary buffer. 5. Low Impact Development Preferred. Low impact development methods are the preferred form of development in all shoreland areas. The City shall, at its discretion, require low impact techniques to be incorporated into subdivision design, landscaping, street and stormwater infrastructure design, and building construction in approving rezonings, conditional uses, or variances. Low impact development techniques include: a. Minimizing impervious surfaces through the use of narrower rights-of-way and narrower streets, looped road-ways versus cul-de-sacs, shorter building setbacks from the road to minimize driveway length, and use of pervious parking surfaces. b. Stormwater management and infrastructure that emphasizes on-site retention and infiltration through the preservation of native vegetation within the shore impact zone, preservation of wooded shoreline, and use of rain gardens, swales, and other small infiltration areas where soils are appropriate. Page 12 of 37 I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/4/2009 6. Visual Impacts to be Mitigated. Building location, design, and buffer landscaping shall minimize the building profile as seen from the closest shoreland point. a. Existing trees shall be maintained to screen 50percent of buildings in leaf-on conditions. b. Break up building mass using methods such as broken planes, varying rooflines, stepping back (from the shoreline perspective) of upper stories. c. Use materials and colors that blend with the setting; avoid the use of reflective materials. d. Buildings on riparian lots should not exceed 30 feet in height. Buildings higher than 30 feet must require additional setback distance. Page 13 of 37 I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/4/2009 Page Intentionally Blank Page 14 of37 I City of Shakopee Natural Resources Corridor Design Criteria 3!l3/20093/4/2009 Section 3 Design Criteria for Wetlands A. Areas Subject to the Design Criteria. The Design Criteria for wetlands addresses all wetlands within the Natural Resources Corridor map as defined in the Minnesota Wetland Conservation Act (WCA). B. Principles for Design Criteria. The minimum Design Criteria for wetlands are created to meet one the following criteria (Scott County WMO): 1. No Net Loss. Achieve no net loss of wetlands in Shakopee, in conformance with the Minnesota Wetland Conservation Act (WCA). 2. Maximize Avoidance. Maximize .wetland avoidance for all new developments and land disturbing activities. 3. Mitigation Required. Require mitigation of wetland disturbance or risk of degradation by replacing the lost or at risk wetland functions and values in the same major watershed with equal or greater wetland function or value. 4. Require Transportation Project Compliance. Require transportation projects to pursue wetland mitigation projects along the transportation corridor. (This does not preclude the use of the BWSR Replacement Program.) 5. Recognize Multiple Functions. Identify and preserve wetlands for water retention, recharge, soil conservation, wildlife habitat, aesthetics, and natural enhancement of water quality. 6. Stormwater Impacts. Manage changes in volume and quality of local stormwater systems to minimize negative impacts to existing wetland functions, value, or biological diversity. 7. Replacement. Replace affected wetlands where avoidance is not feasible and prudent in order to sustain Shakopee's urban setting. C. Minimum Design Criteria for Wetlands. Following are the minimum Design Criteria that shall apply to wetland areas: 1. Wetland Application. A wetland assessment and delineation report, the most recent version of the MnRAM assessment, and replacement plan shall be submitted to the City when required by Chapter 16 of the City Code The submittals must be performed by a qualified wetland specialist and the wetland boundary in the report shall be shown on a scaled drawing Page 15 of37 I City of Shakopee Natural Resources Corridor Design Criteria 3/13120093/1/2009 2. Wetland Impacts and Replacement Requirements. The guidelines for. proposed wetland impacts and replacement requirements will be based on the approved Minnesota Routine Assessment Method (MnRAM) assessment and are as follows: !'1~.RAM Management Cla~s . It.llpacts ~nd Mi~i~at!on <::riter~a . Exceptional No impact allowed .. . ~ ... . Hig~ .. No impact allowed .. .. ~ ...-. .. . ........... ", .......... Medium I)A voidance 2)On-site l)A voidance 2)On-site Low 3 )Minor- watershed 4)Upstream minor-watershed 3. Wetland Buffer Setbacks. For any parcel created or redeveloped, all new structures are required to have a setback from the wetland buffer as defined in this section. The wetland buffer setback shall be measured from the outer edge of the wetland buffer as defined in this section. For residential parcels, a 30 foot front and rear yard wetland buffer setback and a 10 foot side yard wetland buffer setback is required. All nonresidential parcels shall be required to provide a 10 foot structure setback for the front, rear and side yards. If a wetland buffer is not required, a wetland setback is not required. 4. Wetland Buffers. For any parcel created or redeveloped, a buffer from the wetland boundary is required. a. Required Wetland Buffer Dimensions. Wetland buffer dimensions are based on the approved MnRAM assessment and are as follows: MnRAM Average ! Minimum Management Class Buffer \ i Buffer ; ... ..... ...- .... ..\Vidth (feet) ! Width (fee.t). ; Exceptional 65 25 High 50 25 . . - . ... .... .- . .. . Medium 35 25 Low 25 25 The required area of the wetland buffer shall be calculated using the average buffer width as measured from the delineated wetland boundary. b. Minimum Buffer Increased When Slopes are Present. The average and minimum buffer width for areas with continuous slopes over 1 Opercent from the edge of the wetland boundary and extending at least 20 feet from the wetland boundary shall be increased by 25 feet. c. Wildlife Habitat and Corridor Protection. The average minimum buffer width for wetland areas with rare, threatened, or endangered species shall be increased to 200 feet, and for wetlands with an exceptional MnRAM classification for habitat funCtion the minimum buffer shall be 100 feet. Page 16 of37 I City of Shako pee Natural Resources Corridor Design Criteria 3!l3/20093/4/2009 d. Wetland Buffer Vegetation. Buffer vegetation must be established and maintained as follows: i Protection during Construction. The first 25 of the wetland buffer must not be disturbed during project construction with the exception of . public road and utility construction. ii Retain Natural Vegetation. Where acceptable natural vegetation exists in buffer areas as determined by the City, the retention of such vegetation in an undisturbed state is required unless an applicant receives approval to replace such vegetation. A buffer has acceptable natural vegetation if it has a continuous, dense layer of perennial grasses and/or an overstory of trees and/or shrubs that has been uncultivated or unbroken for at least 5 consecutive years. The City of Shakopee may determine existing buffer vegetation unacceptable if the buffer has undesirable characteristics such as noxious or invasive plant species or topography that channelizes the flow of runoff. iii Restoration with Native Vegetation. Where buffers are not vegetated or have been cultivated or otherwise disturbed within 5 years of the application, such areas shall be replanted with approved native seed mix and maintained. The buffer plantings must be identified on the application. Any vegetation planted within the buffer are independent of any landscaping required elsewhere by the City. During the first 2 full growing seasons, the owner must replant any buffer vegetation that does not survive. The owner shall be responsible for reseeding/or replanting if the buffer changes at any time through human intervention or activities. iv Address Adjacent Wetlands. Buffers shall apply whether or not the wetland boundary is on the same parcel as a proposed development. An applicant is required to delineate the boundary for any wetland on the project land. An applicant shall not be required to delineate wetlands on adjacent property, but must review available information to estimate the wetland boundary. e. Wetland Buffer Recording and Monumentation. When a buffer is required the applicant shall, prior to issuance of any building permit by the City, complete the following: i Conservation Easement or Outlot. Submit to the City for its approval a conservation easement for protection of buffers and wetlands on the property, or include the buffer and wetland in an outlot dedicated to the City in the plat. The easement shall legally describe the boundaries of the wetland or public waters wetland and buffer, identify the monuments and monument locations, and refer to the allowable wetland buffer uses as defined in this section. ii Record Easement or Plat. Record the approved easement or final plat with the County and submit evidence thereof to the City. iii Provide Monuments to Identify Buffer. Buffers shall have monuments installed to clearly designate the boundaries of all buffers within new developments. A monument shall be required at each parcel line where it crosses a buffer strip and shall have a maximum spacing of 200 feet along the edge of the buffer. Additional Page 17 of37 I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/1/2009 monuments shall be placed as necessary to accurately define the edge of the buffer. A monument shall consist of a post and a buffer sign. The signs shall be consistent with the current signage used as part of the park, open space, and conservation easement boundary marking program (Resolution 6417) and shall be securely mounted on a post to a minimum .height of 4 feet above grade. f. Wetland Buffer Alterations I Alterations Prohibited. Alterations including building or placement of structures, storage of materials, paving, mowing, plowing, introduction of noxious vegetation, cutting for non-management purposes, dredging, filling, mining, dumping, grazing livestock, agricultural production, yard waste disposal or fertilizer application, are prohibited within the wetland buffer. ii Allowed Activities. The following activities shall be permitted in the wetland buffer and shall not constitute prohibited alterations: 1. Removal of noxious vegetation such as European buckthorn, purple loosestrife and reed canary grass. 2. New plantings that enhance the natural vegetation. 3. Selective clearing or pruning of trees or vegetation that are dead, diseased or pose similar hazards. 4. Use and maintenance of an unimproved access strip through the buffer, not more than 20 feet in width, for recreational access to the wetland. Access strips within shoreland areas is governed under Design Criteria for Lakes and Streams. 5. Clearing, grading and seeding are allowed as part of a Local Government Unit approved Wetland Replacement Plan. 6. Placement, maintenance, repair or replacement of trails, as long as the area of the trail is not counted as wetland buffer area. 7. Placement or maintenance of ponds or other stormwater treatment facilities, so long as the area of the pond is not counted as wetland buffer area and the embankment of the pond is located 35 feet from the wetland boundary. 8. Construction of an individual sewage treatment system (ISTS) so long as the vegetation growing on the system is maintained in accordance with the City Code, the area for the ISTS is not credited as a wetland buffer area and the edge of the ISTS is located at least 35 feet from the delineated wetland edge. 9. Construction, maintenance, repair, reconstruction or replacement of existing and future public roads, utilities or drainage systems within a wetland buffer so long as any adverse impacts of the construction and installation on the function of the wetland buffer have been avoided or m!nimized to the extent practical and the activity has been approved by the City. Page 18 of37 I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/1/2009 Section 4 Design Criteria for Woodlands A. Areas Subject to the Design Criteria. The Design Criteria for woodlands in this Section shall apply to all woodland areas within the Natural Resources Corridor map. B. Principles for Design Criteria. The minimum Design Criteria for woodlands are created to meet one the following criteria: 1. Large Wooded Areas. Protects wooded areas that are large relative to all local tracts of remnant wooded areas; or 2. Proximity. Protects wooded areas that are in relative proximity to other wooded areas. C. Minimum Design Criteria for Woodlands. The following are the minimum Design Criteria that shall apply to woodland areas: 1. Tree Removal Prior to Development Application is Prohibited. The deliberate removal of any tree on any parcel of land containing a tree that is currently under subdivision review by the City prior to approval of a management plan per City Code Section 11.60, Subdivision 9, is prohibited except for the removal of individual dead, diseased, or hazard trees for safety purposes. 2. Site Design. Structures, driveways, and parking facilities shall be located in such a manner that the maximum number of trees should be preserved. 3. Management Plan Required. Any applicant for a preliminary plat, minor subdivision, commercial building permit, conditional use permit, variance or grading permit must submit a tree management plan per City Code Section 11.60, Subdivision 9, prepared by a forestry specialist to the City and must demonstrate that there are no feasible or prudent alternatives.to removing any tree. Alternatives such as; decreased setbacks, minimized grading, reduction in the number of proposed dwelling units, reduction in street width or design, or other design modifications shall be considered. Increased costs alone shall not be sufficient proof of lack of feasible or prudent alternatives. An applicant for a residential building permit must complete the City's "Tree Management Evaluation and Compliance Form" as their Tree Management Plan. The City must also be provided with a certificate of survey that contains all of the following information: 1) the location of all existing trees on the property; 2) the location of all trees to be removed; 3) the location of all trees to be preserved; and 4) the location and species of all replacement trees. a. Pre-plan Meeting. The applicant is encouraged to meet with City of Shakopee staff prior to the creation of a management plan per City Code Section 11.60, Subdivision 9, to discuss subdivision design alternatives that meet the requirements of this section. b. Proof Required for Requesting Tree Removal. The proof required for an assertion that no feasible or prudent alternative to tree removal exists shall include, at a minimum, information on the following: I A description and site design of alternatives considered prior to the assertion of no feasible or prudent alternative; ij Cost estimates of alternatives that were considered; and iii Other information requested by the reviewing authority. Page 19007 I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/4/2009 c. Review by Expert. The City may engage one or more experts to assist in the evaluation of an assertion that there are no feasible or prudent alternatives to removing any tree. An expert may be engaged to review biological information, cost estimates that are provided as proof of feasibility or prudence, or other reviews deemed necessary by the City to evaluate. Full costs of engaging such experts shall be charged to the applicant. d. Final Determination of Feasibility or Prudency. The City of Shakopee shall make the final determination of whether or not feasible and prudent alternatives exist to tree removal. e. Information required in Management Plan. The management plan per City Code Section 11.60, Subdivision 9, must consist of the following: I Tree Inventory Sheet A survey depicting the location of all existing trees, as defined in this Subdivision, on the property and the Natural Resources Corridor Priority Ranking for each tree. Each tree shall be labeled with a unique identification number. ii Tree Removal/Preservation Sheet A drawing that clearly illustrates the individual trees proposed for removal and the manner in which by the applicant intends to replace the removed trees. Trees intended for removal shall be clearly distinguishable from those intended for preservation. Proposed lot lines, building pads, driveways, streets, easements, and any areas in which tree removal is expected shall be shown. The location of the tree preservation fence should also be shown. Hi Tree Inventory Legend Sheet A page showing a matrix listing the unique identification number for the tree, the species or common name, the size in caliper inches at DBH, and an indicator as to whether the tree is intended for removal or preservation, iv Tree Replacement Sheet A page depicting the replacement tree locations with a legend identifying the tree species, size, and quantity to be planted. 4. Tree Removal and Replacement. The following conditions shall apply to an applicant proposing to remove trees from any parcel of land within the Natural Resources Corridor map: a. Preserve 50 percent of the trees. b. All Heritage Trees must be preserved. c. Tree removal on the parcel shall not have the effect of reducing a woodland area, partially or entirely located on the parcel, to less than 5 acres. Tree's Natural Resources Corridor Replacement Tree Ratio: Priority Ranking: Best 1:1 (Remove: Replace) Better 2:1 (Re~ove: Replace) Good 3:1 (Remove: Replace) Buffer 4:1 (Remove: Replace) Page 20 of37 I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/4/2009 5. Site Inspections Required. Site inspections to ensure compliance with the Woodland Management Regulations must occur prior to the issuance of any permit for the development. The applicant must survey and stake all platted property lines, streets, parks, open spaces, building pads and install tree protection prior to site inspection. At least two additional site inspections shall occur during site preparation and construction of the development to ensure compliance with the approved management plan per City Code Section 11.60, Subdivision 9. Additional site inspections necessary because the applicants requested revisions to the approved management plan per City Code Section 11.60, Subdivision 9, will be completed by the City and the costs shall be charged to the Applicant and reimbursed from the construction security. 6. Design Criteria for Tree and Woodland Protection during Grading, Contouring, and Construction a. All development activities, including grading and contouring, must take place in such a manner that no more than one half of the area within the dripline of any tree to be preserved is impacted. Figure 3.3: Tree protection fence installation i Deterrniningthe construction danger . zone between the protective fence and the' building site assists with final site and . building design.amd'seleEtion. of equipment to he used. Note that the tree protectivefeneeisplaced:infronttopreventaccess. and .distLlfoamce.to theprotected.rootzone. Page 2] of37 I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/4/2009 b. Installation of snow fencing or polyethylene laminate safety netting shall be placed at the drip line or at the perimeter of the critical root zone, whichever is greater, of trees to be preserved. No grade change, construction activity, or storage of materials shall occur within the area surrounded by tree protection fencing.. c. The applicant and the applicant's contractors shall take steps to prevent the change in soil chemistry due to concrete washout and leakage or spillage of toxic materials, such as fuels or paints. Washout areas must be identified on site and signage of those areas should be provided in the construction area. d. Best management practices shall be followed for tree protection during site grading and construction. The City adopts by reference the best management practices in the most current version of Conserving Wooded Areas in Developing Communities - Best Management Practices in Minnesota, Minnesota Department of Natural Resources, Minnesota Shade Tree Advisory Committee, USDA Forest Service, Northeastern Area State and Private Forestry. State of Minnesota, Department of Natural Resources. 7. Dead or Diseased Trees. Trees determined to be dead or diseased by the City of Shakopee will be required to be removed in accordance with City Code Section 10.70 and such removals will not require replacel1}ent or count towards the approved removal quantity. 8. Woodland Design Criteria in Shoreland Areas. Tree removal in Shoreland areas is subject to the provisions of this Section with the following additional requirements: a. A management plan per City Code Section 11.60, Subdivision 9, shall not allow tree removal within the shore and bluff impact zones and on steep slopes or bluffs in shoreland areas as defined in the Natural Resources Corridor Design Criteria. b. Intensive vegetation clearing for forest land conversion to another use is prohibited. c. In shore and bluff impact zones and on steep slopes or bluffs as defined in the Natural Resources Corridor Design Criteria, limited clearing of shrubs and cutting, pruning, and trimming of trees is allowed to provide a view to the water from the principal dwelling site and to accommodate the placement of stairways and landings, picnic areas, livestock watering areas, access paths, beach and watercraft access areas, and permitted water-oriented accessory structures of facilities, provided that: i the access path is consistent with Lakes and Streams Design Criteria; ii the screening of structures, vehicles, or other facilities as viewed from the water, assuming summer, leaf-on conditions, is not substantially reduced; iii along rivers, existing shading of water surfaces is preserved; and iv the above provisions are not applicable to the removal of trees, limbs, or branches that are dead, diseased, or pose safety hazards. Page 22 of37 I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/1/2009 9. Security Required for Developer. Security shall be provided by the developer to guarantee compliance with this chapter. a. In order to ensure that there is compliance with the submitted tree management plan and to ensure replacement of any replacement trees that die during the warranty period and the removal of any diseased trees, the applicant shall provide the City with a cash deposit, a letter of credit or escrow, in favor of the City, in an amount of 150 percent of the tree replacement requirement estimate. b. All replacement trees planted must be warranted through two complete growing seasons. If a replacement tree dies during the warranty period, it must be replaced with a tree of the same size and species. Prior to the expiration of the warranty period, a forestry specialist shall inspect the trees. As trees are declared healthy by the forestry specialist upon inspection, the applicant may request reductions to the financial security amount provided that adequate funds remain equal to 150 percent of the cost to complete the remaining work. c. Any trees required to be removed per Section 10.70 of the City Code from a site shall be removed and disposed of according to Section 10.70 of the City Code prior to release of the financial security. d. Residential building permit applicants and the City are exempt from the financial security requirement. 10. Penalty for Unauthorized Tree Removal. Any person, firm, or corporation who causes the loss of trees identified as saved on the approved tree management plan per City Code Section 11.60, Subdivision 9, shall be required to complete one of the following: a. Replacement of the tree removed according to the diameter of the tree. The replacement ratio shall be 2 caliper inches for every 1 DBH inch of the tree removed. Replacement trees shall be planted within the same development. If replacement can not be completed within the project site, a cash amount approved by the City Council shall be provided to the City to complete .. management activities within the development, plant trees on the development at a later time, or plant trees on public owned or managed property. b. Payment to the City from the construction security. The amount of the payment will be $500 for every 1 caliper inch of the tree removed. 11. Plan is a Continuing Requirement. The management plan per City Code Section 11.60, Subdivision 9, shall be a continuing requirement on publicly owned or managed property. Page 23 of37 I City of Shako pee Natural Resources Corridor Design Criteria 3/13/20093/i/2009 Page Intentionally Blank Page 24 of37 I City of Shakopee Natural Resources Corridor Design Criteria 3!l3/20093/4/2009 Section 5 Design Criteria for Upland Vegetation A. Areas Subject to the Design Criteria. The Design Criteria for areas with upland vegetation address those areas mapped on the Natural Resources Corridor map. Evaluation of these areas will be based on the Minnesota Land Cover Classification System (MLCCS) information and the Natural Resource Prioritization Matrix (NRPM). B. Principles for Design Criteria. The minimum Design Criteria for high quality upland vegetation areas include the following : 1. Protect and Connect High Quality Vegetation. Protect high quality upland vegetation areas, and other vegetated, undeveloped areas connecting the high quality upland vegetation, within the Natural Resources Corridor. 2. Protect Isolated Areas. Protect high quality vegetation areas outside the Natural Resources Corridor to the maximum extent practicable, requiring delineation of high quality vegetation and retaining 100percent of sites smaller than five acres or less than 20percent of the development site, plus a minimum of 50percent of contiguous vegetation for that portion of the site beyond the five acre/20percent threshold. 3. Encourage Restoration. Encourage (working with other organizations and willing landowners) or require restoration of high quality upland vegetation areas consistent with an approved management plan. e. Minimum Design Criteria for Upland Vegetation Areas. Following are the minimum Design Criteria that shall apply to the upland vegetation areas. 1. Upland Vegetation. In all zones, high quality upland vegetation shall be protected or incorporated into new development or infrastructure so as to retain the integrity of Shakopee's heritage habitat areas, encourage restoration of those areas, and provide for connections between distinct areas consistent with the needs of habitat maintenance. 2. Delineation Required for High Quality Upland Vegetation Areas. Applications for any development on or adjacent to parcels that include designated high quality upland vegetation must include a delineation of any high quality upland vegetation areas on the development parcel. The application shall also note the location of mapped high quality upland vegetation areas on adjacent parcels. 3. High Quality Upland Vegetation Areas within the Natural Resources Corridor. development is regulated in the following manner: a. Development Prohibited. No development, intensive vegetative clearing, or grading is allowed on any area within the Natural Resources Corridor evaluated and determined to be better or best upland vegetation except for vegetative restoration under a vegetative management plan approved by the city. b. Edge Habitat Buffers Required. Within 100 feet of the delineated high quality upland vegetation sites: i All buildings and roads are excluded. ii Vegetative clearing is prohibited except for vegetative restoration that is described in a vegetative management plan approved by the City. Page 25 of37 I City of Shako pee Natural Resources Corridor Design Criteria 3/ 13/20093/~/2009 c. Restoration. Restoration of native habitat may be required, if determined by the City to be necessary for sustaining the high quality upland vegetation area. 4. Other Areas with Upland Vegetation Designations. Development is regulated in the following manner: a. Protection of Good Upland Vegetation. No more than 50percent of the areas evaluated and determined to be good upland vegetation areas shall be cleared or graded for development or infrastructure. b. Exceptions. The City may allow more than 50percent of the good upland vegetation to be developed if restoration of remaining areas is completed and connectivity is maintained between high quality vegetation areas or to the Natural Resources Corridor. 5. Restoration. Restoration of native upland vegetation areas, consistent with A Prairie Restoration Handbook for Minnesota Landowners; Minnesota Department of Natural Resources Ecological Services, is highly encouraged in the following areas. a. High quality upland vegetation sites within the Natural Resources Corridor. b. All vegetated areas connecting high quality up/and, wetland, or shoreland vegetation areas within the Natural Resources Corridor. c. Edge habitat areas and buffer areas around high quality upland vegetation areas. 6. Conservation Easements Required. Conservation easements shall be placed on delineated high quality upland vegetation areas, as determined by the City, which are required to be protected under this design standard. Page 26 of37 I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/4/2009 Section 6 Design Criteria for Wildlife Habitat A. Areas Subject to the Design Criteria. The Design Criteria for wildlife habitat address those areas mapped on the Natural Resources Corridor map. B. Principles for Design Criteria. The minimum Design Criteria for high quality wildlife habitat include the following : 1. Protect Habitat Function. Protect the habitat function of areas identified as Better or Best on the Natural Resources Corridor map. 2. Ensure Barrier-free Movement. Ensure barrier free movement between wildlife habitat within the Natural Resources Corridor map. C. Minimum Design Criteria for Wildlife Habitat Areas. Following are the minimum Design Criteria that shall apply to wildlife habitat. 1. Site Survey Required. Where the development site includes or abuts an area identified as Better or Best on the Natural Resources Corridor map a habitat site survey shall be conducted and identify: a. The type of habitat and species likely to utilize the habitat, and; b. The necessary conditions to maintain the habitat function including protection of core area and edge vegetation or other buffer, corridor width and configuration and other elements of barrier-free movement, and any other functions specific to the habitat. 2. Protect Functioning of Delineated Areas. Site configuration, preparation, and- development must protect the functioning of the site as wildlife habitat as identified in the habitat site survey. In order to protect the habitat functions, site configuration, preparation or clearing, and development shall: a. Maintain a diversity of habitat by preserving the range of existing foliage height including ground covers, shrubs and trees b. Identify habitat buffer areas to the designated wildlife area, and identify provisions for maintaining the habitat buffer over time. The habitat buffer shall: I Be a minimum of 40 feet wide, unless otherwise identified in the habitat site survey. ii Be consistent with the edge habitat conditions identified in the habitat site survey, such as the need for native vegetation of differing heights, including grasses, shrubs and trees c. Minimize the amount of area within the habitat buffer that is converted to lawn from existing vegetation. 3. Barrier-free Movement Required. The subdivision of any land within Better or Best areas identified on the Natural Resources Corridor map shall make provisions for barrier-free movement of wildlife across the site and maintain barrier-free movement to Natural Resources Corridor areas abutting the development site. a. Road and other above ground infrastructure shall not cross corridors unless mitigating steps, meeting the approval of the City of Shakopee and consistent with the findings of the habitat site survey, are taken. Page 27 of37 I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/4/2009 b. Corridors connecting wildlife habitat areas shall be a minimum of 100 feet wide. Additional width may be necessary if warranted by the habitat site survey. c. Corridors shall be marked with signage indicating that the area should not be disturbed and vegetation should not be cut. 4. Lights must be Shielded. Lights shall be fully shielded and directed so as not to shine into the wildlife habitat or associated connecting corridor unless required for a trail. 5. Conservation Easements. Conservation easements on wildlife habitat or corridors within the Natural Resources Corridor may be required, at the discretion of the City, as a condition of subdivision approval. Page 28 of37 I City of Shako pee Natural Resources Corridor Design Criteria 3/13/20093/4/2009 Section 7 Design Criteria for Endangered and Threatened Species A. Areas Subject to the Design Criteria. The Design Criteria for endangered and threatened species in this Section shall apply to all areas within the Natural Resources Corridor map. B. Principles for Design Criteria 1. Consistent with DNR Rules. The Minnesota Department of Natural Resources is required to adopt rules designating species meeting the statutory definitions of endangered, threatened, or species of special concern. The design standard applies to the species on this list, which is codified as Minnesota Rules Chapter 6134. 2. Consistent with Minnesota Statute. The Minnesota Endangered Species Statute authorizes the Minnesota Department of Natural Resources to regulate the treatment of species designated as endangered and threatened (Minnesota Rules Chapter 6134) . 3. DNR Permit Required. The Minnesota Department of Natural Resources prohibits taking, purchasing, importing, possessing, transporting, or selling endangered or threatened plants or animals, including their parts or seeds, without a Minnesota Department of Natural Resources permit. This regulation is set forth in Minnesota Rule 6212.1800. 4. Habitat is Protected. Habitat is critical to sustaining any species, and in many instances habitat destruction is the greatest risk to endangered, threatened or special concern species. Such habitat within the Natural Resources Corridor map needs to be identified and protected or mitigated. 5. Natural Heritage Database. Few requirements exist for documenting the existence of endangered, threatened or special concern species habitat. Within the Natural Resources Corridor, the DNR Natural Heritage database indicates the need for investigation of existing habitat conditions. C. Minimum Design Criteria for Endangered and Threatened Species. Where the development site includes an area covered or immediately abutting a site noted on the most recent version of the DNR Natural Heritage database, a habitat site survey completed as part of the Environmental and Park Plan Review shall be conducted to determine if the site includes any endangered, threatened, or at risk species. The survey shall also determine if there are any ecologically sensitive resources not in the DNR database. 1. Existence of Protected Species. If the site survey determines that endangered, threatened, or at risk species or other ecologically sensitive resources are present, all activities on the site, including application process and site design, shall: a. Utilize appropriate mitigation measures that include avoiding, minimizing and compensating for impacts. Examples include landscaping or revegetation with plant species of value to wildlife, retaining wooded travel corridors (especially along waterways), and construction or restoration of wetlands b. Comply with the Federal Endangered Species Act of 1973, as amended (16 USC 1531-1544), including acquisition of appropriate permits from the U.S. Fish and Wildlife Service. c. Comply with the Minnesota's Endangered Species Statute (Minnesota Statutes Section 84.0895) and associated rules (Minnesota Rules Chapters 6212 and 6134), including acquisition of appropriate permits from the DNR. Page 29 of37 I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/1/2009 Section 8 Design Criteria for Steep Slopes and Bluffs A. Areas Subject to the Design Criteria 1. Natural Resources Corridor Map. The Design Criteria for steep slopes and bluffs address all slope areas within the Natural Resources Corridor map. 2. All Slopes Greater than 10 Percent. All areas with slopes greater than 10 percent in the Natural Resources Corridor map and having moderately or highly erodible land, as identified on the Scott County Soils Survey. B. Principles for Design Criteria. The minimum Design Criteria for steep slopes and bluffs are created to meet the following criteria: 1. Erosion, Landslides, Sedimentation. Prevent erosion and landslides, limit increased sedimentation and impacts to water quality. 2. Aesthetic Integrity. Maintain the aesthetic integrity of a community by protecting hillsides and ridgelines. 3. Protect Habitat. Protect habitat that needs undisturbed slopes to allow for propagation and sustainability of plant or animal communities. 4. Minimize Maintenance and Replacement Costs. Ensure that development of infrastructure on slopes minimizes long-term maintenance or replacement costs. C. Minimum Design Criteria for Steep Slopes and Bluffs. Following are the minimum Design Criteria that shall apply to steep slope and bluff areas: 1. Slopes. In all zones, slopes in excess of 10 percent shall be protected or incorporated into new development or infrastructure so as to limit erosion, manage storm water runoff, and protect natural features using best management practices (BMP's). 2. Bluffs. Development is regulated in the following manner: a. Development Prohibited. No development or vegetative clearing is allowed on any bluff impact zone except for vegetative restoration or management under a vegetative management plan approved by the City b. Protection of Prominent Natural Features. Within the bluff impact zone: i All buildings are excluded. II Vegetative clearing is prohibited except for vegetative restoration that is described in a vegetative management plan approved by the City. iii Conservation easements shall be granted in favor of the City for all bluff areas and bluff impact zones. The edge of the easement area shall be identified with monuments. iv Buildings on slopes greater than 10 percent uphill from the bluff impact zone shall be designed and positioned so as to blend into the slope rather than sit on top of the slope. 3. Steep Slopes. Development is regulated in the following manner: a. Shoreland and Wetlands. Minimum buffers and setbacks around all waterbodies shall be increased by 25 feet for slopes that are at least 50 feet in length and greater than 10 percent. Page 31 of37 I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/4.'2009 b. Protection of RidgelineNiewshed. Ridgeline/viewshed areas shall be subject to the following minimum design criteria: I All buildings and infrastructure, other than driveways, must be designed to blend into the slope rather than sit on top of the slope. ii All high quality native vegetation, as identified in the Minnesota Land Cover Classification System (MLCCS) shall be protected. 4. Building Design Considerations. Buildings on slopes that exceed 10 percent and are longer than one-eighth of a mile shall be designed to blend into the slope. Design considerations include the following: a. Locate and design buildings so that they do not loom over the bluff b. Break up building mass using methods such as broken planes, varying rooflines, stepping back (from the downhill perspective) of upper stories, minimizing mass near waterbodies. c. Use materials that blend with the setting; avoid the use of reflective materials. d. Use suitable colors; subtle, subdued colors are best. e. Buildings within 50 feet of the bluff impact zone and within 100 feet from the top of a steep slope should not exceed 30 feet in height. Buildings higher than 40 feet should be set back from the bluff impact zone an additional 25 feet. Page 32 of37 I City of Shakopee Natural Resources Corridor Design Criteria 3/13/20093/1/2009 Section 9 Design Criteria for Recreation Opportunities A. Areas Subject to the Design Criteria. The Design Criteria for recreation opportunities in this Section shall apply to all areas within the Natural Resources Corridor map. B. Principles for Design Criteria. The minimum Design Criteria for recreation opportunities are created to meet one the f.ollowing criteria: 1. Sufficient Quantities. Provide for fully developed parks, trails, facilities, and open space in sufficient quantities to meet the needs of the City. 2. Enhance Natural Resources. Preserve and enhance the natural resources of the community and provide residents an opportunity to interact with the natural resources. C. Minimum Design Criteria for Recreation Opportunity. Following are the minimum Design Criteria that shall apply to recreation areas: 1. Comprehensive Plan. Conformance with the goals and policies of the most recent version of the Shako pee Comprehensive Plan adopted by City Council. 2. Ensuring Public Access. Provide public access to public land and utilize the Natural Resources Corridor map when evaluating the location of public land in the development and redevelopment review process. Page 33 of37 I City of Shakopee Natural Resources Corridor Design Criteria 3/I 3/20093/1/2009 Page Intentionally Blank Page 34 of37 I City of Shako pee Natural Resources Corridor Design Criteria 3/13/20093/1/2009 Section 10 Design Criteria for Accessibilityllnfrastructure A. Areas Subject to the Design Criteria. The Design Criteria for accessibility/infra-structure in this Section shall apply to all areas within the Natural Resources Corridor map. B. Principles for Design Criteria. The Design Criteria for accessibility/infra-structure are created to meet the following criteria: 1. Utilize Easements. Utilize publicly owned or managed easements, outlots, and unused right-of-way in the Natural Resources Corridor. 2. Accessibility. Provide accessibility to Natural Resources Corridor areas by the public. C. Minimum Design Criteria for Accessibility/Infrastructure. Following are the minimum Design Criteria: 1. Conformance with the Americans with Disabilities Act. 2. Conformance with the most recent version of the Comprehensive Water Resource Management Plan adopted by City Council. 3. Conformance with the most recent version of the City of Shakopee Engineering Design Criteria adopted.by City Council. Page 35 of37 I City of Shakopee Natural Resources Corridor Design Criteria 3!l3/20093/1/2009 Page Intentionally Blank rv Page 36 of37 I City of Shako pee Natural Resources Corridor Design Criteria 3/ J 3/20093/4/2009 Section 11 Con nectivity A. Areas Subject to the Design Criteria. The Design Criteria for connectivity shall apply to all areas within the Natural Resources Corridor map. B. Principles for Design Criteria 1. The minimum Design Criteria for connectivity are created to meet one the following criteria: a. Provide for fully developed parks, trails, facilities, and open space in sufficient quantities to meet the needs of the City. b. Preserve and enhance the natural resources of the community and provide residents an opportunity to interact with the natural resources. 2. The Design Criteria are to ensure compliance with the existing planning documents: a. Shakopee Parks, Trails, and Open Space Plan. The City of Shakopee Parks, Trails, and Open Space Plan (2004) includes goals, objectives, and policies. This plan outlines the direction for parks, trails, and open space in the City of Shakopee. b. Scott County Parks, Trails, and Open Space Plan. The vision statement for the plan states 'The vision for parks, trails, and open space in Scott County is a coordinated system of natural resource based parks, open spaces, and trails that enhance the quality of life for present and future generation by acquiring, preserving, developing, maintaining, and managing important natural, historic, and/or cultural areas and landscapes; providing opportunities for the recreational enjoyment and education of the public; and complimenting the opportunities offered by other outdoor education and recreation providers." This plan also contains goals and policies for the creation of a park, trails, and open space system. c. City of Shakopee Design Criteria. The City of Shakopee Design Criteria and General Plan Requirements for Grading, Street, and Utility Improvements was created by the Engineering Department. This document provides information and design criteria for sidewalks and trails (Section 9). Sidewalks are important lateral connections for the trails system and provide residents with safe access to trails, parks, and the open space system. C. Minimum Design Criteria for Connectivity. Following are the minimum Design Criteria that shall apply to connectivity: 1. Conformance with the goals and policies of the most recent version of the Shakopee Comprehensive Plan adopted by City Council. 2. Provide connections between natural resource features where a Corridor Connection is identified on the Natural Resources Corridor map in one of the following procedures: a. 20 foot wide trail easement granted to the City. b. An outlot dedicated to the City on the final plat which will contain a 20 foot wide trail. c. A conservation easement granted to the City that allows for a 20 foot wide trail to be constructed within the easement area. Native planting consisting of native seed mixtures, native shrubs, or native trees are to be used in Corridor Connection areas. Page 37 of37 CHANGES I City of Shakopee~Natllral Resources Corridor Design Criteria3/13/20093/Vf.QQ.9Y2/2009.1~!"!'/~.Q.Q.?J.J./7/~Q.Q.?.10/29/.290& Table of Contents Executive Summary 3 Section I Definitions '.. ..... ..... ./' ...{ Formatted: Underline 1 Section 2 Design Criteriafor Lakes and Streams 5 I Section l.J Design Criteriafor Wetlands 1\ 9 AP,fiW.iilt\4 I Section1.iJ Design Criteria for Woodlands ~'~I 13 ..M..' . . \@ I Section J.4 Design Criteria for Upland Vegetation MJ 19 'W4iP~:w . I Section Q-5 Design Criteria for Wildlife Habitat". 21 I Seed.n Z' De<ign C,it"ia 1<" Endangmd and ThAeele' 23 I Section F Design Criteria for Steep Slopes and BI'......,,if "r".I#-% 25 ." ..%W , I Section 2.8 Design Criteria for Recreation Opportunities 'f" /1' 29 tr, I Section 109 Design Criteria for Accessibility/Infrastructure ' . 'p 31 I SeeMn lIO De<ign Crit""'f"'P..............~'f-.... '" & 33 . .. ....."1~ .~~:ij I Sectw."ll1 Dcfi1lltWlls ~." .... '/ 35 '.ffiW J't.... . ,,<%6"\." APpenlA Purpose and Goals of Design Criteria APpenl,B Ecological ~asis for Design Criteria Append.. Design cJeria Photos Appendix~,J'IIf2005 Alternative ShorelandStandards Appendix E MnDNR Shoreline Alterations: Natural Buffers and Lakescaping Appendix F MnDOT Parcel 75: Oak Savanna Vegetation Management Plan Appendix G MnDNR A Prairie Restoration Handbook for Minnesota Landowners Appendix H MnDNR A Handbookfor Collecting Vegetation Plot Data Page 1 of 51 I City of Shakopee fffltff-Natural Resources Corridor Design Criteria3/13/2009J/~./.f.QQ.93/2/20091.:~{1./2QQ.~J.1./7{2.9.9.3.10/20/2008 Page Page 2 of5] I City of Shakopee 8ffi4-Natural Resources Corridor Design Criteria31!3!2009JI.1/~QQ2JL4g.QQ.2.14/1/:?QQ~J.V7aQ.Q.~.1 0/20/2008 Executive Summary The City of Shakopee has a diversity of high quality natural resources, natural systems and natural features that serve as the City's "green infrastructure." These resources comprise Shakopee's natural heritage, provide critical functions that sustain the developed portions of the City and shape the character of the City. While infrastructure sustains the community, it is not inherently self-sustaining. Like the rest of Shakopee's infrastructure (roads, water and wastewater systems, public buildings) green infrastructure must be considered within the subdivision and development process, and maintained via routine pUblic investment. The following Natural Resources Corridor Design Criteria are divided into sections addressing specific natural features that were the basis for the composite Natural Resources Corridor map: I Section 61-: Lakes and Streams - Conserve water quality, provide flood control, retain and enhance the plant and animal communities associated with these ecosystems, and provide recreation and open space for people. . .. *;~1i:Y;. jff ,.... j Section ~2: Wetlands - Conserve wetlands and the critical functi~n~~~ pro~jde in the ecosystem for water quality, flood control, habitat, recreation, and d'i~P'&~~'*W '1$J&.lflw I Section 43: Woodlands - Conserve the various size woodland patches~nd reduce woodland fragmentation to better sustain ecosystem functions. I Section ~4: Upland Vegetation - Conserve thx$l'~~ining native upland vegetation areas and encourage restoration efforts to take place t<&iffhnecttilated, naturally vegetated locations. I Section ~5: Wildlife Habitat - Conserve s~~f!i/$'Vildli;~~~'itat corridors and allow restoration . . jV efforts to connect these isolated areas.~%t;" ,," v'litav' wI" I Section I6: Endangered and Threatened Species - Conserve the ecosystem upon which species classified ~~. endang~red, threatened, or of special concern depend for survival. I Section !!.+: s\eet'titis9::~tlffS - Conserve steep slope and bluff areas that help shape the commul'~ty;~acte"f$r future~'l3rations. g'Y >> 1J\Jlk. my I Sectioflt@8: Recreation - .ettl~Qcef~creation to allow residents an opportunity to gain an appre~tion for natural re~our~E't' g,;$ ; ) I SectjO~9: AcceSSibil~"nfrastructure - Utilize existing infrastructure components of the City as ~'lil.~: Natu~~..Resources Corridor system. I Section 1J~~~'e:~;Vjty - Ensure recreational or natural resource connections between areas that do not have connections with natural features. The Design Criteria are intended to address connectivity issues. This requires conserving or restoring natural features and the functions and connections they have to other natural features. Page 3 of 51 I City of Shakopee fffitlt-Natural Resources Conidor Design Criteria3/13/2009V1l.fQ.Q.(!3/2/2002.!.2!1.aQ.Q.R.lJ.!..7.aQQ~1 0/20/2008 Page Intentionally Page 4 of 51 City of Shakopee fffltA-Natural Resources Corridor Design Criteria31l312009~!.:\i.:?QQ.9.3!2!2009 !.2i.1.i2.QQ.?IJ.!.:znQQ~.1 9!20!2008 Section 14- Definitions +--. ".-' Formatted: Normal, Space Before: 0 pt For the purposes of the Natural Resources Corridor Desiqn Criteria the followinq definitions apply. Nothinq in these definitions is intended to modify other terms used in any other City code or City ordinance.'--_______ _ _ _ _ _ _ _ _ _ _ _ __ _ __ _ ,_ __ ______._n___ _ __,_ ,_ _____'._,__ __ _ _ '. _n_'_'__._, _____n' ___, _ _, _ _. _ _, __,__.- _--{Formatted: Font: (Default) Arlal, 11 pt _.__J 1. Applicant means any person proposinq a Development. 2. Buildable area of land means the minimum contiouous area remainino on a lot or parcel of land after all setback requirements and buffers. bluffs and restricted steep slopes. easements and riqhts-of-way. historic sites. wetlands. and land below the ordinary hiah water level of public waters are subtracted for the purpose"of placement of structures. fir- '%.~ 3. Bluff means alopographicfeature such as a hif1, cliff,of embanKm~~.t"h~vL~g~~th~ followirlq characteristics: '.' .... 27 a. " The slope. rises at least 25.feet in eJevati"onc,aboveJhe;toeoHhe.bluff:S:4$t-p'&{{ b. The gh:itle 'ef the slope::from'1ti-e ibe"oT-tn'e hlufflc/a opIMf 25fe-et or mO're. abo\le 'the toe' averaoes18o/i!or' oreater .6ji;~ 0:~~~~;_~\~"<t>' c. . A'dIstance,of' 50feetor.m0re.as{measuredv~jrtiCallv;aJOnq the'bloff.'fa'C:e. . ,. .. " .... , .. '. .. ... .' _, Sf_. .' ,'_' .. . . d. A distance'ectual toOl' greater ~than.660 fee:ti-as-roeasureJil.horizonta!!y. alon'9 the most directroute of the top 'ofblu.ff in tha.bluffface:,,'hhe,horlzontaTcllstancecanexfeod beyond property'lines: ;rtji;' wI , . (~o~~~~! [~Hi}:_~~~_-_-___mmmm.] " . 4. iBluff face means the area between the toe of the bluff a'l_Of the bluff. _n ___.__ 5. Bluff impact zone means a bluff and land located within 50 feet from the top or the toe of a bluff. 6. 7. 8. 9. Conservation subdivision means a method of subdivision characterized by common open space and clustered compact lots, with the purpose of creating Qreater community value throuqh open space amenities for homeowners and protection of natural resources. while allowing for the residential densities consistent with prevailinq densities. Site desiQns incorporate standards of low impact development, such as the use of some sinole-load roadways and narrower riQhts-of-way. looped road-ways versus cul-de-sacs. maximum road setbacks for structures, and preservation of trees, shoreline. unique resources, and scenic vistas, and these developments use stormwater desiQns that emphasize on-site retention and infiltration throuah the preservation of native veqetation within the shore impact zone, use of pervious surfaces, rain qardens. and swales. 10. Core habitat area means the central area of a patch of habitat which maintains the habitat's pre-fraqmentation conditions. Page 5 of 51 City of Shakopee Gffiff-Natural Resources Corridor Design Criteria3/l3/2009g4,'2o..Q21'2/20Q2.1~D/~QQ.~.LU.7/2.Q.Q.~.1 0/20/2008 II. Corridor Connections means a corridor that provides residents and natural resources an opportunity to travel between natural resource areas identified on the Natural Resources Corridor map. 12. Diameter at Breast Hei~ht, or DBH, means the lenqth of a straiqht line throuqh the trunk of a tree (in inches) measured at 54 inches above the qround from the uphill side of the tree. 13. Development means any activity for which a preliminarv plat, minor subdivision, conditional use permit, variance, buildinq permit, or qradinq permit is required. 14. Dripline means an imaqinarv vertical line that extends from the outermost branches of a tree's canopy to the qround. 15. Easement means a limited property riqht to make use of a parcel or lot owned bv another person, such as a drainaqe and utilitv easement or conservation easement. 16. Ecosystem means the whole of the environment (phvsical, c~cal, and bioloqical) and the orqanisms which interact within that system..l'fP%::,I' 17. Ed e habitat means the out! in areas of a atch of habita\wsl€'h ma1ibe disturbed b human activities and may have different wind, sun, and rain';p()surElltlltfln core habitat areas."'. - "",)f:"..<\,:k..i:~::" Page 6 of 51 City of Shakopee 8f&i+-Natural Resources Corridor Design Criteria3!l3f20093./1aQ.Q,!3/2/20091.2LU2.Q.Q.8.JJ./Zi29Q$I 0'29/2008 FraQmentation FiQure ~ 100 75 . 50 ~ 25 50 aw! *ml'!i_,.Jv 20. Habitat means areas that sustain native species of plant afWa1iimal by providinQ necessary resources WhiCh.f!}~~!~tIUde shelter, food, protection, or reproduction areas. 21. Habitat buffer zone meansCtnd~1 >ed,or a ricultural areas surroundin a wildlife corridor or habitat area inteledjo Dr;" edQe habitat and protect the wildlife corridor from human disturbances. Ii" ,il'" 'WtJ9,"'i 22. Heritaae Tree means a tree in falllll*better condition meeting the followinQ criteria: -fh, a'si~~'t~cidUOUS tree; ,f Has a DBH equal to or Qreater than 24 inches (a lesser size tree may be considered li~ to be a HeritaQe Tree if it is a rare species or can be utilized as a focal point in the 'I; proiect; ~ "'ti;las a life expJtancy of Qreater than 10 years; '!I;:&i{/iW d.;.;.....!t.\S. r c,'lrinte ri and shows no visible defects that would cause it to be d......,,)' l:JVas a Hazard Tree; 23. High qualitv vegetation means those areas identified in the Scott County MLCCS land cover survey with native veQetation and rated as "better" or "best" sites in the Shakopee Natural Resources Corridor maps. 24. HighlV erosive soils means those soils desiQnated as hiQhly erosive in the Scott County Soils Survey database and maps. 25. Infrastructure means roads, driveways, parkinQ lots, wastewater, stormwater conveyance, water, electric, Qas, or telecommunications equipment, pipes or associated support structures. Page 70f51 City of Shakopee ~Natural Resources Corridor Design Criteria3/13/2009;)!4a..oo23i2i2009l;/!/:?'Q93..L!.naOO~1 0/2012008 26. Intensive ve~etative clearin~ means the removal of trees or shrubs, or perennial native qrasses in a contiquous patch, strip, row, or block. 27. Minnesota Land Cover Classification System (MLCCS) means the land cover classification system created by the Minnesota Department of Natural Resources and the completed land cover survey data collected and mapped by Scott County consistent with the MLCCS, The classification system consists of five hierarchical levels. Levels 1 , 2, and 3 are a hybrid based on the National Veqetation Classification System and the Minnesota Natural Heritaqe plant communities data. Levels 4 and 5 use the Minnesota Natural Heritaqe system to more explicitly identify plant community types. 28. Minnesota Routine Assessment Method (MnRAM) is a wetland functions assessment tool created in Minnesota by an interaGency workGroup in 1991 to helpf~~1 officials make sound wetland manaqement decisions based on data qathere~~fR'l\ field. This tool evaluates the followin functions of a wetland and establishes all: aluat"'?...., exceptional, hiqh, medium, or low for each function (MnRAM Compre.IS........teral Guidance document, Board of Water and Soil Resources): 4*; "4%"#v 1. VeGetative Diversity/lnteqrity%it 3. Flood/Stormwaterl Attenuation 4. Downstream Water Quality 5. Maintenance of Wetland Water Qualitv 6. Shoreline Protection 7. Maintenance of Characteristic Fish Habitat 8. Maintenance of Characteris:~~mphibian Habitat .ff"" "Wi!IIlik 9. Aesthetics/Recreation/flQucatK'i!i\~ultural ~'jt\ if 'tt~I), ,_.iff 10. Commercial Uses %iWi:rl, 11. Groundwater Interaction '{'''II''! %fW' 12. Wetl~nd Restoration Potential . ..y;$Jiih$'%!'h 13:l'Sensitivfty to Stormwater and Urban Development 07 ~,. Additional Stormwater Treatment Needs ,,~ % 29.~tural Resource~ Corridor Map refers to the most recent version of the Shakopee 1"~{al Resourc~,corridor map approved bv the Shakopee City Council. 30. Nil'*' .'. esoullle Prioritization Matrix NRPM refers to the matrix s stem created b the Sh"'"I,..~,i nvironmental Advisory Committee to evaluate natural features for the creation of the Natural Resources Corridor map. The NRPM is included in the Natural Resources Plan component of the Comprehensive Plan. 31. Native vegetation means plants and plant communities that occur naturally in the Shakopee area. 32. Patch means a relatively homoqeneous type of habitat that is spatially separated from other similar habitat and differs from its surroundinqs. (Forman, R. 1995. Land Mosaics: The EcoloQY of Landscape and Reqions. Cambridge Universitv Press, Cambridqe.) Page 80f51 City of Shakopee Gffitl.-Natural Resources Corridor Design Criteria3/13120093.i4/2QQ.93/2/20Q2.!4/!./4.QQ$JJ.tW.Q.98.1 0/2012008 10% Figu" from Co""'r"~ti"'I.T!.I"'$hold. o CORE '9d"A*f, Pw.'plinmcrs:, The' hnvln::mmenta'1 Law fnstituk, 2.()O:t Washington n.c, . EDGE ISH'1 # '.5857(\.085-7. Patch ~ smd~. The edge to interior ratio of a habi. tat patch Is affected by patch shape. A more convoluted. irregular. Of lincar patch wlll have a higher proportion of edlC, thus. increasing the number of edge species and decreasing thc number of interior Sf)(JCics. ~i &;:~$!' 33. Recreatiorl"OeortIinitl~tmeans an area that provides residents recreatinq an opportunity to l~rl~t witt1~~J'L~j resources in the Natural Resources Corridor. 34:Rid~ej;ne;tviewshedmeansan .areawithaslope'thatis etjual'or greater than 18 percent that has alEmQth.of more than"a60"feet as measured horizontallyalon~:rthe most direct route ofthe arealhatwouldbe consideredtliebluffface: 35. Ri~ht.of-wav is a narrow lenqth of land used for the route of a railroad. electric power line. or public road. 36. Riparian refers to livinq or beinQ located on the bank of a natural watercourse or sometimes of a lake. 37. Riparian Rights are the leQal riQhts of a landowner owninQ riparian land. 38. Setback is the minimum horizontal distance between a structure or other specified item such as a wetland boundary. 39. Slope refers to the continuous inclination of the land surface for a distance of at least 50 feet, when measured perpendicular to the contour line. Most often slope is defined as the percentaQ8 related to the inclination. For example, a 25% slope would have a one foot rise in land for every four feet of horizontal distance (see diaqram below). I~t~ - - 4 Ft Not to Scale Page 9 of 51 City of Shakopee fmrA..Natural Resources Corridor Design Criteria3/13/20093/1aQQ.93/2/200914/1./4Q.o.8..\.L/.7/2.Q0.~.10/20/2008 1 ft rise/4 ft distance = 0.25 0.25 *100 = 25% slope 40. Spe~ial Concern Species is a species not listed as endanQered or threatened, but is considered extremely uncommon in Minnesota or has unique or hiQhlV specific habitat requirements and deserves careful monitorinq of its status. Species on the periphery of their ranQethat are not listed as threatened may be included in this cateqory alonQ with those species that were once threatened or endanqered but now have increasinq or protected, stable populations. i!;1::;; 41. Steep slope means lands with the followinQ characteristics:,;;;::;;;:iil:> , Atfr' i: a. AveraQe slopes equal to or Qreater than 18%. , '.tv,;a b. A distance of 50 feet or more as measured vertlcallv alon~&tlae.bJ.ufi'ace. ''\+1ffl1:~iW~f7pr c. A distance equal to or qreater than 660 feet as measured h~rj2~l'if~IIY alonq the most direct route of the top of bluff in the bluff face. The horizontal distance can extend beyond property lines. 42. Threatened S ecies is a s ecies likel )ltlll""ome endan ered within the foreseeable future throu hout all or a si nificant &0 on 0'1i~ilian e within Minnesota. 43. Toe of the bluff means the lower p51:i~..a 50;~C1,i)~qment with an averaqe Slope d' 18% . ~:iIII! :F excee Inq o. ::..i~'l\'" .' 44. Top of the bluff means the hiqher point ot~.erfoot seqment with an averaqe slope exceedinq 18%. if 45. Tree meanlla livin .imen of a wood lant s ecies that is either a deciduous tree whose dia~s 'Pinc~r greater at DBH, or a coniferous tree whose heiqht is 12 feet or qreater.,::",,) '''Wi.tj'i'' :./4@!V"'" 46. Wetland means t~!I~dS tralitional between terrestrial and aquatic systems as defined in the Minnes'~1~etland Conservation Act (WCA). 47. Wetlands, Exceptiona./iValue are exceptional and hiqhest functioninQ wetlands o'r those sensitive wetlands receivinQ conveyed storm water runoff that have yet retained a medium level ofveqetative diversitv/inteqritv accordinq to the MnRAM 3.0 evaluation. These wetlands are most susceptible to human impacts, are most unique, have the hiqhest community resources siQnificance such as rare species habitats, and similar characteristics. 48. Wetlands, High Value are hiQh Quality wetlands accordinQ to the MnRAM 3.0 evaluation. These wetlands are relatively undisturbed but exhibit evidence of more disturbance or deqradation than Exceptional Value wetlands. Hiqh Value wetlands have conditions and functions that are susceptible to human impacts, are connected to other wetlands or watercourses, and may contain locally siQnificant or rare wetland types. 49. Wetlands, Medium Value are wetlands that provide medium functional levels accordinQ to the MnRAM 3.0 evaluation. These wetlands typically provide a diversity of habitats. are connected to other wetland or upland habitats to provide wildlife habitat. and often provide the optimal restoration opportunity. Page 10 of 51 City of Shakopee fffl;#-Natural Resources Corridor Design Criteria3!13/20093!1i4.QQ.9.3/2/20091.4.iJaQQ.~.1.J.Di49Q~1 0120/2008 50. Wetlands, Low Value are wetlands that have been substantially disturbed accordinQ to the MnRAM 3.0 evaluation. These wetlands tend to be less susceptible to further impacts than the other wetland manaQement classifications. They also have low vegetative diversitYlintegrity and no connectivity to other wetlands and watercourses. 51. Wetland Boundary is the delineation between upland and wetland determined accordinQ to the United States Army Corps of Engineers Wetland Delineation Manual (January 1987). The wetland type must be determined accordinQ to United States Fish and Wildlife Service Circular No. 39 (1971 edition). 52. Wetland Conservation Act (WCAl became effective January 1, 1992, to A) achieve no net loss in the quantity, quality, and bioloQical diversity of Minnesota's existinQ wetlands: B) increase the quantity, quality. and bioloQical diversity of Minnesota's wetlands by restorina or enhancinq diminished or drained wetlands; C) avoid dire,\&f-"'6rThdirect im acts from activities that destro or diminish the uantit ualit and biQ . I diversity of wetlands; and D) replace wetland values where avoidanc ttlvltve!s not feasible or prudent (Minnesota Rules Chapter 8420). .j' "P"-">'?f:ffP 53. Wetland Delineation Report is the proof submitted to the local QovernmentEnit in compliance with Chapter 8420.0225 of the WCA identif',,\ina the wetland boundary. __:KiP' ' 54. Wetland Replacement Plan is an application form~f)lied by the applicant proposinq wetland impacts. The components of the plan rn~'st be'1\Compliance with the reqUirement of Chapter 8420.0530 of the WCA.~, .'c .....'IfJz... 55. Wildlife corridors are linear landscape features ~~"~it~'f native veaetation that connect two or more habitat patches to allow for the mpent oi;animals, birds and other species.:', ..;;i,r 56. Wildlife habitat areas means areas identified as better o'ofst wildlife habitat on the Natural Resources Corridor ~iJdJiE;, map. 57. Woodland means the arealwithin'tte"conti uous dri line created b of woody plant species if the cl'li~upthQ at,;, Ins at least 1 tree. 11. ., ::AhA -:q"w,'" Page II of 51 City of Shakopee fmtff-Natural Resources Corridor Design Criteria3/! 3/20093/1!4QQ93/2/2009\.4Ll./.2Q9.$L!./?/4.Q.Q~.1 9/20.'2008 Section ~4 Design Criteria for lakes and Streams A. Areas Subject to the Design Criteria. The Design Criteria for lakes and streams address all waters and drainageways within the Natural Resources Corridor map regulated by the Minnesota Department of Natural Resources, local watershed districts, local watershed management organizations or City of Shakopee. B. Principles for Design Criteria. The minimum Design Criteria for lakes and streams are created to meet the fOllowing criteria: 1. Ensure the ongoing functioning of natural systems to manage 2. Protect habitat areas at the critical water/land juncture. 3. Require minimum primary and secondary buffers to lakes and 4. Protect existing vegetation and require vegetation restoration where 5. Protect opportunities for public access, trails, ~:Cer recreation. C. Minimum Design C,IIe,;a 10' Lakes and 8'...ams.....he ~;ng m;n;mum Des;gn C,;le,;, are derived from the Department of Natural Resour1~00 s!A.lter.n'l.tlve Shoreland Management Standards. The Alternative StandardSf~~ratlf'Fmost current natural resource science research on protecting natural shorelan j.f,;\W~~1 n~fihile still allowing development along lakes, rivers, and streams. The standcl~shall.9" ply to lake and stream shoreland areas identified on the Natural Resources Corrido~p;)ii!:I?" 1. Suitability Design Criteria.:; Subdivision of land Withi~~;k~ and stream shoreland areas must ensure that]f3g__~e~sed lot meets suitability design criteria. a. Sew~red lots shi~ha~~l11\i~ir:num of 8,400 square feet of buildable area per 9~elllng~.~..I~;t .~. "., b. ;A\~twE?~m(.t~hal",Ia minimum buildable area of 17,400 square feet per<lC\lj;~ing li1'fi~';I;;J' c. proPoSlft'l~bdiVis'ths that include stream or river shoreland areas must also I meet the~'"~:t9~Sign criteria for lots that are within 300 feet of- the OHWL. 2. Primary and SecorJilry Buffers. The total buffer (building setback) between OHWL and any building in the shoreland area shall be no less than100 feet and shall be greater as described below, or when the Shoreland Overlay requires a larger setback. The buffer shall include a minimum of 50 feet for the primary buffer (shore impact zone), and 25 feet of secondary buffer. For shoreland areas within the Natural Resources Corridor map designated as Better or Best, the following buffer requirements shall be met: a. Better shoreland areas shall have a total buffer of at least 100 feet, including at least 50 feet of primary buffer. b. Best shoreland areas shall have a total buffer of at least 150 feet, including at least 60 feet of primary buffer. i A conservation easement shall be placed on the primary buffer, and the primary buffer must be monumented to identify the border of the easement. Page ]2 of 51 I City of Shakopee 8ffiIf-Natural Resources Corridor Design Criteria31l312009~.!Ja.Q9.23/2!2GG9 !.4LWQ.Q.l1.!..U.zi4.Q.Q8! 0/20/2008 ii A larger primary buffer is, at the City of Shakopee's discretion, a mitigating factor for reducing the total buffer/setback distance. if also allowed under the Shoreland Overlay. In no case shall the buffer/setback be less than 100 feet. c. For shoreland with either the Better or Best designations the City of Shakopee may, at its own discretion, use buffer averaging to modify buffer requirements in order to best protect the shoreland and water resources. 3. Open Space Requirements for Lakeshore Subdivisions. All subdivisions that will result in five or more development lots shall include open space areas to be permanently protected. a. Conventional subdivisions shall provide for open space by increasing the lot size to be a minimum of 50% larger than the minimum lot size allowed in Shakopee's shoreland overlay. b. Conservation subdivisions shall retain the full deVc.~'I.~nt rights of the shoreland overlay, provided that development sif h~,~1eno~h buildable land to meet suitability requirements. Conservation ~l.t'livisions~hall meet the open space design and protection reqUirements.~,~he,:,~'tation management standards of the Oepartment of Natu~lj~rce's 2005 Alternative Shoreland Management Standards, or most recent version. 4. Vegetation Management Requirements. No vegetation removal is allowed in the primary buffer (the shore impact zoneltir?ept as approved by the City of Shakopee in a vegetation management plan fO#Shlii.l€,nd restoration. Each riparian lot may also clear a 20-foot wide access:~,at t~,e, not more than 15 feet long, and a path area not more than six feet~~!~throug't '~'primary buffer. For shoreland areas designated better or best the 'fi!:l~fI':ing, qCloitional design criteria shall apply: a. New riparian lots shall have resfAttd4 primary buffers, if the existing shore impact zone is disturbed or veget:ated with turf grass or non-native )I,egetation; The shore restoration shall meet the requirements of the Scott ,.'\jnty i~i.~8 Water Conservation District or Minnesota DNR standards for , sflftlllffl re~~,f~tion. ';";~If b. APPriJf&'i,for vari~'~s, rezonings, or conditional uses for existing riparian lots shal"JI~,~es"oreland restoration for the primary buffer. 5. Low Impact Dever9PKent Preferred. Low impact development methods are the preferred form of development in all shoreland areas. The City shall, at its discretion, require low impact techniques to be incorporated into subdivision design, landscaping, street and stormwater infrastructure design, and building construction in approving rezonings, conditional uses, or variances. Low impact development techniques include: a. Minimizing impervious surfaces through the use of narrower rights-of-way and narrower streets, looped road-ways versus cul-de-sacs, shorter building setbacks from the road to minimize driveway length, and use of pervious parking surfaces. b. Stormwater management and infrastructure that emphasizes on-site retention and infiltration through the preservation of natiVe vegetation within the shore impact zone, preservation of wooded shoreline, and use of rain gardens, swales, and other small infiltration areas where soils are appropriate. 6. Visual Impacts to be Mitigated. Building location, design, and buffer landscaping shall minimize the building profile as seen from the closest shoreland point. Page 13 of 51 I City of Shakopee Gffitl.-Natural Resources Corridor Design Criteria3/13/20093..!1i.4.Q.Q.\!3!2/20()9l.4!..U.4.Q.QKl..U.z(2Q.Q~.1 0/20/2008 a. Existing trees shall be maintained to screen 50% of buildings in leaf-on conditions. b. BreaK up builoing m~ss using methods such ~s broken planes, varying rooflines, stepping back (from the shoreline perspective) of upper stories. c. Use materials and colors that blend with the setting; avoid the use of reflective materials, d. Buildings on riparian lots should not exceed 30 feet in height. Buildings higher than 30 feet must require additional setback distance. Page 14 of 51 I City of Shakopee fmtfl-Natural Resources Corridor Design Criteria3/1312009~!1ifQ.Q93/2(2009 !.~!.l/4.Q.Q.!1.!!/Zi4.Q98J 0/20/2008 Page Intentionally Page]50f51 I ~~o~;;:~e ~;l Natura~;:;; ~o~;i;:;; =ri;~a;::;:~~O~~!200914LL'4QQHlnaQO.~.10!20!2008 A. Areas Subject to the Design Criteria. The Design Criteria for wetlands addresses all wetlands within the Natural Resources Corridor map as defined in the Minnesota Wetland Conservation Act (WCA). B. Principles for Design Criteria. The minimum Design Criteria for wetlands are created to meet one the following criteria (Scott County WMO): 1. No Net Loss. Achieve no net loss of wetlands in Shakopee, in conformance with the Minnesota Wetland Conservation Act (WCA). <#1};% 2. Maximize Avoidance. Maximize wetland avoidance for all new ~vel<;j'PrTJ<ents and land disturbing activities. ................... ,..",ii""1;. 3. Mitigation Required. Require mitigation of wetland disttt!ilf.l'i,* orrlsk of J de~radation by replacing the lost or at risk wetland f~nc:t'n~(~fta v~lu~~.(tf1e same major watershed With equal or greater wetland functlon'~y,cBtue.,' 4. Require Transportation Project Compliance. ReqUireW("~B.~.Q~~on projects to pursue wetland mitigation projects along the transportatiori"..If: (This does not preclude the use of the BWSR Replacement Program.) 5. Recognize Multiple Functions. Identify and preserve wetlands for water retention, recharge, ~oil conservation, wildlife ~~_,aesthetics, and natural enhancement of water qUallty.Wh.J "',!,%, 6. Stormwater Impacts. Managei$l("~es in'~~li!ile and quality of local stormwater systerTJs to .minimize negative impa'blllQ,exist~ wetland functions, value, or biological diversity. ".l 7. Replacement. Replace affected wetland! where avoidance is not feasible and prudent in order to sustain Shakopee's urban setting. C. Minimum De~f'tI~rit,I',~yvetlands. Following are the minimum Design Criteria that shall apply to wetf~"Jreas: '.'t I 1. Wetland AP~"ion. 1'fetland assessment and delineation report, the most recent version 0 t~~.,R;A.M assessment, and replacement plan shall be submitted to the City when re~IFed bv Chapter 16 of the City Codef-or ~my octivitios filling, oxcovoting, or otherV:;ise oltering 'Netlands in accordance with tho Minnesoto Wetland ConGor'l::ltion Act (WC/\). The submittals must be performed by a qualified wetland speCialist and the wetland boundary in the report shall be shown on a scaled drawinQ certified survey. Page I60f5I I City of Shakopee Dfa-ff-Natllral Resources Corridor Design Criteria3/I3/20093.i1/4.Q.Q9312/2009!4/J/4.Q.Q.$J)/Z!4.Q.Q1P 0/20/2008 2. Wetland Impacts and Replacement Requirements. The guidelines for proposed wetland impacts and replacement requirements will be based on the approved Minnesota Routine Assessment Method (MnRAM) assessment and are as follows: MnRAM Management Class Impacts and Mitigation Criteria m m m m ". Exc~pti~~a] .. ..,... ~oi~pact. ~llo~~~ High No impact allowed Medium })A voidance 2)On-site l)Avoidance 2)On-site Low 3)Minor-watershed 4)Upstream minor-watt;:l\~,l'{~i, ii{f'-;y-?:/f 3. Wetland Buffer Setbacks. For any parcel created or r$:dex,!l)ped~,all new ~tru~tures ~re required to have a setback from the wetl"':~~::,e:~~ldary as defined In this section. The wetland buffer setback shall be meaS'.9wf~.J:he ou~ggQ..Qf the wetland buffer as defined in this section. For residentialjfJ!~!l.el!:( a 30 foot front and rear yard wetland buffer setback and a 10 foot side yard wetland buffer setback I is required. All nonresidential parcels shall be required to prOVide a 10 foot structurewetl-aOO setback for the front:i?r and side yards. If a wetland buffer is not required, a wetland setback is not rEfu4l.l'k lit <C"W' 4. Wetland Buffers. For any parct'\l6ated ~'~,;yeloped, a buffer from the wetland boundary is required. "m<'%tIl%:"<.V* a. Required Wetland Buffer D1.~il~i~nS'. Wetland buffer dimensions are based on the approved MnRAM'$'Eissment and are as follows: Average Minimum Buffer Buffer Width (feet) Width (feet) I 65 25-S+l I 50 .25 Medium 35 25 Low 25 25 I The required area of the wetland buffer shall be calculated using the average buffer width as measured from the delineated wetland boundary. b. Minimum Buffer Increased When Slopes are Present. The average and minimum buffer width for areas with continuous slopes over 10% from the edge of the wetland boundary and extending at least 20 feet from the wetland boundary shall be increased by 25 feet. c. Wildlife Habitat and Corridor Protection. The average minimum buffer width for wetland areas with rare, threatened, or endangered species shall be increased to 200 feet, and for wetlands with an exceptional MnRAM classification for habitat function the minimum buffer shall be 100 feet. Page 17 of 51 I City of Shakopee Bfaff-Natural Resources Corridor Design Criteria3/13/2009314/40Q.93.!.4aOO.9.l;)L1!.:fQQ8JJ/7.!.4Q!l.~1 0120.'2008 d. Wetland Buffer Vegetation. Buffer vegetation must be established and maintained as follows: i Protection during Construction. Tho minimum no disturb:mco buffer width during conctruction will be consistent with Roquimd Buffer Girnensfe.A.s-OO-sefl-oo-l:f1e-apf*ove;;i-evefall-MnRAM-asw&Sffl-Effit..as measured from the wetl:md bound3ry and must bo protectad from disturbance 'J'lith temporary fencing prior to construction. Voget:.1tion ean...oe--r-eplcwed ond site-seils..pFep8ratien-wer-k-Bempleted.-within"too Required Buff€r Dimonsions if necoscory to ostablish acceptablo vegot:.1tion-ffi-aGGBrElaFloo-witJ'l...#lis-SeGtiel'l: Th,i? first .25. of thEl.1Yf?l!.E1Jl..Q buffer must not be disturbed durinq project constructig~ with the exception of public road and utility construction. /i..'4.. ii Retain Natural Vegetation. Where acceptable rfi~~E.~_.,../.e. 'ii.i.. ation exists in buffer areas as determined by the City, tHti:!ltm1 elf such vegetation in an undisturbed state is required unless aa appU,ant receives approval to replace such vegetation. A buffer""$ijI? acceptable natural vegetation if it has a continuous, dense layer of perennial grasses and/or an over!~!a' of trees and/or shrubs that has been uncultivated or unbroken'~~i~~st 5 consecutive years. The City of Shakopee may determl~e exiS\~,9 buffer vegetation unacceptable if the buffer has.~esir,"leJ~flr~cteristics such as noxIous or InvaSive plant specl"lJ;fupqllP~'that channelizes the flow of runoff. .,1",1'(.(' jji Restoration with Native Vegetation: 1!\lh~~ElW6uffers are not vegetated or have been cultivated or otl"&e disturbed within 5 I years of the~application, such areas shall be replanted with ap~roved."'il,....'. ....'.n..,'........ati............ .'...".....@.i.....'............e...........d..........m........ ix and ~ai~tained. The buffer plantings must I be Idenhfld oQvt1li.~appllcatlon. Any veQetatlon Rlanted~n'o~rub pl,:mtiflgs installed within the buffer are independent ~lanY'~la'fidscaping required elsewhere by the City. During the firs.." growing seasons, the owner must replant any !lJt\/ buffer vegetationfhat does not surviveis-oot-BstaelistJe;;i. The owner ,Wf/-iilkA shall be responsible for reseeding/or replanting if the buffer changes I if! at any time through human intervention or activities. ::j::f1e..OOffef-.ffild&t ............i.'.:.'... ?........e m:Jint3ined as a ."no mow' area,. except when mO\.ving is a '1 Iillanagement technique for sustaining the buffer. l.%Jt It '1+\ iv Af-ddress Adjacen~ Wetlands. Buffers shall apply whether or not the ,~;,+ .;",IWwetland boundary IS on the same parcel as a proposed development. ",.t.+;:~..r An applicant is required t? delineate the bound~ry for any. wetland on iIIllt the project land. An applicant shall not be reqUIred to delineate wetlands on adjacent property, but must review available information to estimate the wetland boundary. e. Wetland Buffer Recording and Monumentation. When a buffer is required I the applicant shall, prior to issuance of any buildinQ permit by the Cityas-a GOOdition to issuance of. prelimina~pprova1. complete the following: i Conservation Easement or Outlot. Submit to the City for its approval a conservation easement for protection of ~.buffers and wetlands on the property, or include the buffer and wetland in aD. dedicotod outlot dedicated to the City mas part of the plat~ wbGf\4&i-0n-apPffiva1. The easement shall ~describe the Page 18 of 51 I City of Shakopee Gffitl.-Natural Resources Corridor Design Criteria31l3/2009J!.J/;;QQ.93/212009 !;Lt!.4cQQ~.U!.7/4QQ?.lO/2O/2008 boundaries of the wetland or public waters wetland and buffer, identify the monuments and monument locations, and refer to the allowable wetland buffer uses as defined in this section. ii RecordMJe Easement or Plat. Record~ the approved easement or final plat with the County ~and submit evidence thereof to the City or complote preliminary :md final plats including dedicated outlot( s). iii Provide Monuments to Identify Buffer. Buffers shall have monuments installed to clearly designate the boundaries of all buffers within new developments. A monument shall be required at each parcel line where it crosses a buffer strip and shall h..~ a maximum spacing of 200 feet along the edge of the buffer. Itici1:lifi~al !!i! . monuments shall be placed as necessary to accul!ately,.;........the edge of the buffer. A monument shall consist of af!.1;>i8ntlwa1~uffer sign. The signs shall be consistent with the current sigQageyled as part of the park, open space, and conservation easemellt\:tYcrundary marking program (Resolution 6417) and shall be securely mounted on a post to a minimum height of 4 feet~bove grade. ~r'"f0/0:~::<" f. Wetland Buffer Alterations .,~lq'11IIj i Alterations Prohibited. Alteli~ns i1JlUdi\~Uilding o~ placement of structures, stora.ge of maten~!.~~~I.~~ploW,rg' plowing, Introduction of noxIous .vegetat!on, W:for ~'n~ma~agement Rh!.f.!2-Qses, dredging} filling, mining, d., plng.:,.~azl~g Iivesto?k, . agncultural production, yard waste dlsWP>t fertilizer application, are prohibited within the wetland buffer.-' I ii ~i*" AJlowed'et~~~slwrations. The following activities shall be permittetl\~ t~t~'r~~ buffer and shall not constitute prohibited alteratlo~,,:.':.i'.., .0 ..!JiQ.. .,. 1. Remola"ffloXiOUS vegetation such as European buckthorn, purple'ltlJestrife and reed canary grass. 2. New plantings that enhance the natural vegetation. I 3. Selective clearing or pruning of trees or vegetation that areis dead, diseased or poses similar hazards. 4. Use and maintenance of an unimproved access strip through the buffer, not more than 20 feet in width, for recreational access to the wetland. Access strips within shoreland areas is governed under Design Criteria for Lakes and Streams. 5. Clearing, grading and seeding are allowed as part of a Local Government Unit approved Wetland Replacement Plan. 6. Placement, maintenance, repair or replacement of trails, as long as the area of the trail is not counted as wetland buffer area. I LPlacement or maintenance of ponds or other stormwater treatment facilities, so long as the area of the pond is not counted as wetland buffer area and the embankment of the I pond is located ~25 feet from the wetland boundary.L.u______u___.......{ Formatted: Font: Bold ] Page 19 of 51 City of Shakopee Gffitl.-Natural Resour.ces Corridor Design Criteria31l3120093!4t:?9923/2.'2009 !.4i.!.,';?'fl9,H,U.z,'4.Q,9.$..1 0/20/2008 8. Construction of an individual sewaqe treatment system (ISTS) so lonq as the veqetation Qrowinq on the system is maintained in accordance with the City Code, the area for the ISTS is not credited as a wetland buffer area and the edqe of the ISTS is located at least 35 feet from the delineated wetland edQe.. -------- ~9. Construction. maintenance. repair. reconstruction or replacement of existinq and future public roads. utilities or drainaQe systems within a wetland buffer so long as any adverse impacts of the construction and installation on the function of the wetland buffer have been avoided o[ minjmized to the extent practical and the activity has been approved by the City. Page 20 0[51 I ~~o~;;:o~e ;' Natural Resourc~:;~; ~s~ ;;~:;~;/~:;!::3::~~~:~JJ/7!hQQ8.1 0120/2008 A. Areas Subject to the Design Criteria. The Design Criteria for woodlands in this Section shall apply to all woodland areas within the Natural Resources Corridor map. B. Principles for Design Criteria. The minimum Design Criteria for woodlands are created to meet one the following criteria: 1. Large Wooded Areas. Protects wooded areas that are large relative to aI/local tracts of remnant wooded areas; or 2. Proximity. Protects wooded areas that are in relative proximity to other wooded areas. C. Minimum Design Criteria for Woodlands. The following are the minimum Design Criteria that shall apply to woodland areas: ~&;,~lwt- 1. Tree Removal Prior to Development Application is IJohibffed. ,~he deliberate removal of any tree on any parcel of land containing a t~~at is c9rrently under subdivision review by the City prior to approval of a mana'Elment;pl~n per City Code Section 11.60, Subdivision 9, is prohibited except for the reil1i:1tlm~f individual dead, diseased, or hazard trees for safety purposes. 2. Site Design. Structures, driveways, and parking facilities shall be located in such a manner that the maximum number ok.'es should be preserved. commerit[K&G3]: It~hQuld p;ob~bly be n~ted , ' ($I '\qI,fiit 3. Management Plan Required. L.I\I)l;Y~?j)RIi~t&~1;~~!~?-4~~f-efFl~"!€'.'~~?E?_~n_<'l!=lL/' sq,m_~)V~er~ _,i_?~Jhi~:::s,~ct,,!~?~:,:',~h1.h~Bp:l;J:,capts:;::fpr::_;,:~)---~', ,oo-~ j2>af-ce+.of.~al1d-c{)l1tajHjf1g--a-tfee.-f'. relimi~ "'. . fat. minor subdivision. commercial r"es!,~,e~,~i~_t':~yil~,iT19:p~rm:i,))1)JJ.~rc9:in~le~',:tl\~,,_~it~f;'s_ buildin ermit conditional use er' '~varianC:or radin ermit must submit a tree ;::~~~re'~-' ~_~_l?~~~~pt<pY:~IA~!JB:Q-}~!ld:irA-T-~J,~:-~I)P,~,':_: ' ' management plan per CiW)~m~~ Secti ,j'4l<J,;6b, Subdivision 9, prepared by a forestrY "~:?frr~\~.~ t~~i{-Tff~~~:~!w4~n~:-~,~~S~I(l~:;::;;--r-ri.~-~ -~-!,~X mp.~Y'_~!:~:9_:;:~e:})r~:yiq.~_:~~,_t!_~__;_~;;~:~ft!~P-~I~-:}~~::~-~rr~x,--"~ specialistG€fHfied-f0f~.{)f t~Jinsp€lBt~Wto the City and must demonstrate that that e6ntains'all.ofthefoIlowinj; infor)11ation: Irthe ' there are no feasible orii!udttht iM$rFlatives to removing any tree. Alternatives such loeatibn of all existing trees im'the pl:9perty; 2)"the as; decreased setbacks, mice!,ading, reduction in the number of proposed loe.atlon of all trees tQb.ererrlOVed; 3). the location:of , id!tr('es to be preserv<idj""J 4)the lQcat\Qn and ' dwelling units, reduction in s ,t; Jfvidth or design, or other design modifications shal/ "j:lmtsi,$i'9K~lt_~'tRI,?R~_~41}i.:#e~..:,_,_.x':'i,.)j;;,:,-__:,}i"~-__)-:::, _::.f;: --- .-j:f be aqnsidered. Increased costs'alone shall not be sufficient proof of lack of feasible #Qr0f5ro()j~nt alternatives. An applicant for a residential building: permit must complete J/ the City's "Tree Management Evaluation and Compliance Form" as their Tree ,11 Management Plan. The Citv must also be provided with a certificate of survey that I~ contains all of the following information: 1) the location of all existing trees on the "'if':bpropertv: 2) th11ocation ot: all trees to ~e removed; 3) the location of all trees to be "t, ' reserved' al ,;14 the locatIon and s eCles of all re lacement trees. \)';:1:!'~lti'an Meeting. The applicant is encouraged to meet with City of Shakopee staff prior to the creation of a management plan per City Code Section 11.60, Subdivision 9, to discuss subdivision design alternatives that meet the requirements of this section. b. Proof Required for Requesting Tree Removal. The proof required for an assertion that no feasible or prudent alternative to tree removal exists shall include, at a minimum, information on the following: i A description and site design of alternatives considered prior to the assertion of no feasible or prudent alternative; ii Cost estimates of alternatives that were considered; and iii Other information requested by the reviewing authority. Page 21 of 51 I City of Shakopee 8ffifi-Natural Resources Corridor Design Criteria31l3/2009V1/70.\l93.G/209914/1!4Q9~LV7/29,0.~19/29(2008 c. Review by Expert. The City may engage one or more experts to assist in the evaluation of an assertion that there are no feasible or prudent alternatives to removing any tree. An expert may be engaged to review biological information, cost estimates that are provided as proof of feasibility or prudence, or other reviews deemed necessary by the City to evaluate. Full costs of engaging such experts shall be charged to the applicant. d. Final Determination of Feasibility or Prudency. The City of Shakopee shall make the final determination of whether or not feasible and prudent alternatives exist to tree removal. e. Information required in Management Plan. The management plan per City Code Section 11.60, Subdivision 9, must consist of the fOII;~: I i Tree Inventory Sheet (~fr " ,,', A survey~ depicting the location of all eXis~lfl, defined in this Subdivision, on the property and the ~ral R'lsources Corridor Priority Ranking for each tree. Each trees.ttg~ labeled with a unique identification number. '1li'" ii Tree Removal/Preservation Sh~ft A drawin that clearl illustrate,~!:the individual trees ro osed for fSl_moY.?I and. the manner ""/,H"" ,.J2L.t~licant inteD..9S to replace the removed trees)!:;,." ;,' "'''''''''co """0. T",es ~~oval shall be de",l, distinguishable from those inte ,ed," reirvation. Proposed lot I lines, building pads, driveways, 'iie s, eq ments, and any areas in which tree removal is expected ~~all(~,;Shown.,Jhe location of the tree preservation fence should alS,.e; shown. iii l1fu1W@\h Tree!1vef111: Legend Sheet A pa~.~. shtfV''''l]atrix listing the unique identification number for the trW, t~r sp ,(,;jilt or common name, the size in caliper inches at DBH, anlii!~n ,j~n!fu:ator as to whether the tree is intended for th removal ol~rvation. iv Tree Replacement Sheet /$t0<4'$t@ m''ttt~,_ A page depicting the replacement tree locations with a legend ( identifying the tree species, size, and quantity to be planted. L f............:r-r~val--OO be Identified. The dr3wing Sh311 clo3rly iJ.ltlstrate individual (Iy " tf€e.s-p-r~sed-feHeFfl-E}vol ::md the R1aRnor by whicf1..-tf1B.-applicont intonds m ililliiilJ,ii;, replaqtthe ramoved troes. 4."~_.,'tl and Replacement. The following conditions shall apply to an apPlc'antproposing to remove trees from any parcel of land within the Natural Resources Corridor map: Preserve 50 percent of the trees. Formatted a. b. All HeritaQe Trees must be preserved. c. Tree removal on the parcel shall not have the effect of reducinQ a woodland area, partiallv or entirely located on the parcel. to less than 5 acres. Formatted: Indent: Left: 1.25", No bullets or numbering 4,- Page 22 of 51 I City of Shako ee 0ftH+-Natllral Resources Corridor Desi n Criteria3/13/20093i~/4QQ9J/2/20Q.2.1.4i,!/2.,Q.Q,8.1..!.naoQ$1 0/20/2008 I Tree's Natural Resources Corridor Replacement Tree Ratio: Priority Rankinq: I Best 1:1 I Better 2:1 I Good 3:1 I Buffer 4:1 Preserve fifty porcent (50%) of the tree&. All trees meeting the definition of 3 Heritage Tree must be preserved. Formatted: Indent: First line; 0.5" 5. Site Inspections Required. Site inspections to ensure compliance Woodland Management Regulations must occur prior to the issuance of any permit for the development. The applicant must survey and stake all platted property lines, streets, parks, open spaces, building pads and install tree protection prior to site inspection. At least two additional site inspections shall occur during site preparation and construction of the development to ensure compliance with the approved management plan per City Code se't~~1.60, Subdivision 9. Additional site inspections necessary because thejpP'Qts requested revisions to the approved management plan per City Code Settion f<<'iO. Subdivision 9, will be completed by the City and the costs shall be cftlr~ to th~,~ficant and reimbursed from the construction security. (~~~,jt 'V>\}"~., ? .~, r Page 23 of 51 I City of Shakopee Gffitl.-Natural Resources Corridor Design Criteria3/l3/20093.i4/2,Q9.23f2f2009 !.f!1.a.Q.Q,!\.l.1..':Z':499~.10/20/2008 6. Design Criteria for Tree and Woodland Protection during Grading, Contouring, and Construction a. All development activities, including grading and contouring, must take place in such a manner that~ stability of 8*i-~.-tFees-afe--oot affeGtee-a-l-'1€J...ffitjst-}3fevi€Je-existi~es-witR-a-pFBteGte€l-wat€fi-Rg--aFea.-:rhe required protected watering orca shall bo measured as the dittance of the Branch that extends hGfi.2:effia1+y-fafthest~l'\,fR-k-mul~ JlQ more than one half of the area within the dripline of any tree to be preserved is impacted. Figure 3.3: Tree protection fence installation Determining the construction danger zone between the protective fence and the building site assists with final site and building design and selection of equipment to be used. Note that the tree protective fence is placed in front to prevent access and disturbance to the protected root zone. b. Installation of snow fencing or polyethylene laminate safety netting shall be placed at the drip line or at the perimeter of the critical root zone, whichever is I greater, of trees to be preserved. No grade change, construction activity, or storage of materials shall occur within the area surrounded bv tree protection fencing. foncod aroa. c. The applicant and the applicant's contractors shall take steps to prevent the change in soil chemistry due to concrete washout and leakage or spillage of toxic materials, such as fuels or paints. Washout areas must be identified on site and signage of those areas should be provided in the construction area. Page 24 of5] I City of Shakopee fJ.ffift..Natural Resources Corridor Design Criteria31l312009~/.1/2.QQ.23/2/2QQ2J.;!iJ/4.QQ.~)J/ZaQQ$.1 0/10/2008 d. Best management practices shall be followed for tree protection during site grading and construction. The City adopts by reference the best management practices in the most current version of Conserving Wooded Areas in Developing Communities - Best Management Practices in Minnesota, Minnesota Department of Natural Resources, Minnesota Shade Tree Advisory Committee, USDA Forest Service, Northeastern Area State and Private Forestry. State of Minnesota, Department of Natural Resources. 7. Dead or Diseased Trees. Trees determined to be dead or diseased by the City of I Shakopee will be required to be removed in accordance with ~ Q.iBease--Cof1tFOI 3nd Prevem~City Code Section 10. 70} and such removals will not require replacement or count towards the approve~removal quantity. i9,.,$1;1\/\\ .$' 8. Woodland Design Criteria in Shoreland Areas. Tree removal?iQ !?.b.~ areas is subject to the provisions of this Section with the following addi.l'.qllr~'rnents: lif a. A management plan per City Code Section 11.60, Subdivision\~*9~rj not allow tree removal within the shore and bluff impact zones and ot"steep slopes or bluffs in shore land areas as defineQ in the Natural Resources Corridor Design Criteria..,'iiii!f.C ,JI"''''~~t/ b. Intens~ve vegetation clearing for fore~Iland ~Iversion to another use is '~~~%~~:.:~:F.~~~E~~!A~~~~:~~~~~~~;nand i}21~~~~;~~-:1 water from the pnnclpal dwelling site and to ac~odate the placement of ;;;>...............................................................................,...................... .< I t . did' ., I' t k "....t . th :::1 Formatted: Font: Arial. 11 pt. No underline I s airways an an !~.,iJ piCniC areas, Ives oc wa en!JgJ~r..~.?~access pa s, :N'~ . . . .. beach and waterqJtsft!-'t3ss areas, and permitted water-oriented accessory :;:,( Formatted: Font: Anal. 11 Pt., Nounder~ne _ ) structures of fa~Ii;:.es'l1r~~~ that: ..t!iir~~~Ill~t:t=~:~?~t:~rial~l~~t.~?~~?~rli~~, ..1 . th Wi? ::I$h' . f4'iib<; t t 'th L k d St D' C't'. i::) Formatted: Font: Arial. 11 pt. No underline ) I e access Pm"',,;,, IS, ,l"it" l,plS en WI a es an reams eSlgn n ena, ""(""''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''"""""''''''..,,,., ..,.." .. . J!~ Aii . . . .. U;i,: Formatted: Font: Arial. 11 pt. No underline I " the screenlngt;f'i~!iuctures, vehicles, or other faCIlitIes as vIewed from i;,';,'ivmmmmmmm.mm.mmmmmmm m, .", the water, assuming summer, leaf-on conditions, is not substantially!H,:/;J Formatted: Font: Arial. 11 pt..No underline J .,,,,,'iiii!f.''iiii!f.':i$;, reduced' ;;:::';'::'{ Formatted: Font: Arial. 11 pt, No underline ] .:&#;1'*' "-"'4 'I~,I'::::'!I> -- - 11,7 .. ... f' . t' h d' f t rf' d' d i;:';;/;;) Formatted: Font: Arial, 11 pt, No underline I ( :~ i::;~;;~i;~;: ;:d~:l:~~~~::~o;::::~~;~~~~:,nlimbs, fi~~~~~~ 3 \i"ll ;~; S:;) Formatted: Font: Arial. 11 pt, No underline I 'Jtl@,..,',fJIx,',;,"..curityRegp1redforDeveloper. Security shall be provided by the developer toii; ;~.. i:'i'Fo tted' F t. A'" 1 11" tN' "'d ..I~" m'J~ "':::'::'::~::~:;::::::" --.,s:@y. .. c, ~, ".' ;, .1 rma . on. ria I P I 0 un er Ine "'!Il:1i!'lili!9tl?~fl!lmpliance With thIS chapter.'::':;;::'- ", " ''4'W!l';..',#' :'Ii:::: ,:::t Formatted: Font: Arial, 11 pt. No underline l a. In order to ensure that there i: compliance with the submitted tre~4i,i!;t)i!CF.~;;~~;~';'F.?;;~"~;i~';:"1'1'~~;"~;;"~;d.~;;:';~'m""J manaaement Polan and toensurereplacement of anX' replacement trees that die I., ",'/;rmmmmmmmmmmmmmmmmmm~ml d(Jrin!:l the war~anty period and the removal of any dis~ased trees, the applicant,' f }:.:/,: Formatted: Font: An~l, 11 pt. No u:,~erj~ne m , shall provide the City with a cash deposit, a letter of credit or escrow, in favor of "l::;j/.'l Formatted: Font: Arial. 11 pt, Nounderline .) the City. in an amount of 150. percent of the tree, r.eplacement r,.equirement} Iii:,:) Formatted: Font: Arial, 11 pt. No underline ] estim ate, i;;/'/: :.C~~i~~~~,~,;J?m~,!L,~ii~,i;,i~~,,,~~~,,~,~~,~,~,~~il,;~,~:,,~..:,~J b. ~:lej:~6~e~e~~~\,.~~t~i~~i~e W~i~~~y i:~jO~oit'~~~'-/.:',;~':','H~';';:~;;"~~~~:"~;;:;'~"'~~',~~,,~,~,,~~~:';:;~~"""''''''~ be replaced with. a tree ofth'e, same ~i~e, amfspecie'5.Prior to the expiration of /i;<(,{ Formatted: Font: Arial. 11 Pt: N~ underlin~m--..m 1 the warranty penod, a f.orestry specialist shall Inspect the trees. As trees are j' / e"".";"::"'m""":"!. d I d h Ith b tl1 f t . I' t . t' th I' ..',,/ I Formatted. Font. Anal. 11 pt. No underline J \.................................:............................................................................................................. ec are ea y y e ,ores ry specials uoon tnspec lon, e app Icant may./ r..'".m.".,,''....,,''' .. ", ,.ml Formatted: Font: Arial. 11 pt. No underline 1 ,................................................................................'m................................. .....n...............' Page 25 of 51 City of Shakopee 8ftt1+-Natura\ Resources Corridor Design Criteria3/13/20093'1/~.o9.93/2/2QQ.2J.4{1!:4.QQ~11/7!:4..Q.Q,~.10/20/2008 reqUest reductions to the financial security amount provided that adequate funds remain equal to 150, percent of the cost to complete the remaining work",,,'{~;;~~~~~~;F,?~t:~;i~I;ii;;t;~?~6~~i'j~J 5;"'--Auy'trees required to 9&.l.~truQ){g.d ,per Section 1 O,I~2f t.D~'LghL-.C&de from ,a" "<::)r~;;~~~~~;F.?~~~~~i~i,ilpt':'J site shall be removed and disposed of accordinQ to Section 10.70 of the City".,. '1 Formatted: Font: Arial, 11 pt, Not Bold J QgQ.Q.Qrior to releas?...Qfjb..~llJ.9nci?l2.~.1!.d.ty".,...".,.,.,',.__.._____.,mm,.,___.m... 'or Formatted: Font: Arial,11 pt, No underline ) d. Residential buildinq permit applicants and \+he c;ityare;shaHpe exempt frorn, ", Fo~m~tted: Font: Aria!, 11 pt, Not Bold, No l the financial security reqUirement.,............,......,.,..........,...,:...,.,.....:....,.,. ':~\<:"(~~~~~~;;;':'F?;~:"~;i~I;':~'i."~~'~?"~;~';;;i;~.."'j a. =:~~~;::;e S;:~~~~~~Hi~~a~~~~~t:::~=~~~y, \'..,'..~~~;~tt;;d;F~~t;A;;~I:OilP~:N~~~d~;I;~~"""....'" \,,,'hich may be in the form of 0 bond, lettor of credit, cosh of 8pcrow dGposit, ort Formatted: Font: Arial, 11 pt, No underline l ~~ H$ ~Gi-h- ,",4mb fl !'lIB . .1".''0\,. b-. The dove!epef-Will...be'..-eleaSBEl-0f...aAY-fu;:t-l'mt~siooi{~f"\Q~:~,t, V-€0S wRen:- ,,"1i:,'WL:, i The building permit helS been issued. "k'"",,,,",,,,fiY ''''%liP'' ii .,.Gradin-gisGOrflplete-;"+epJacement"tfoos.Mveboo-llph,mteo;,,and preservation has boen vorified by tt)l:'City. ,..$!!i'* e."~,TheCityshajjbeexernpt,,frOffi.the.pre"*~~this.seGtion (I--SeGiJ "ty-R '~'!de ~ ~"d ~~t 1- ,.. l'I ,equt. . . f ' . J;-y...-svl.">,,i 1 . :;,L:; . .. e g1:.lBrafltoo,cOffipllanc€--wlth-thls-Gf'Klpte-r., \.~:1i1lffit ",41'" " a. l\t the time of the building permit, the bU;~d"J.,lfrpr~Jj~e the City of Shak~aSh-eSBr-ew-Bf-$-tOGQ...te--gl;j\flfl:!~ance-.wi-tMree proser/-Gtlon and replacoment reqLllrements. '111iP' b,,-+he-bujjdef'-5J'llijj~OO4any..fur#ieF--fef$0nsi9Hity-fur--loss.ef.-I:rees follOWing :111 InS8.~lrctIOf\.~d Verification by the City that 311 such reqUirements have-.OOen met. IA I~I."' ,w,_ e. The City shall be ex . ,,!cpt fi;the provisions financial sGcuritv requiremontsof tl:tis-sec\:ioo., '4m'B'i:i;; 4i1;m:w' lLlg;#I~ralty for Unauthorized Tree Removal. Any person, firm, or corporation who 4~aus~'the loss of trees identified as saved on the approved tree management plan if per City Code Section 11.60, Subdivision 9, shall be required to complete one of the ifF . ~)j follOWing: , I "\ a. RePlac1ment of the tree removed according to the diameter of the tree. The ""'fi replacYc,lXlent ratio shall be twG-f21 caliper inches for everY_-BAe-f11 ,.:" DB~~liper inch of the tree removed. Replacement trees shall be planted %lfi11'1'._rn the same development. If replacement can not be completed within the project site, a cash amount approved by the City Council shall be provided to the City to complete management activities within the development, plant trees on the development at a later time, or plant trees on public owned or managed property. b. Payment to the City from the construction security. The amount of the I payment will be $500 for every one-.{1) caliper inch of the tree removed. 11.,1L.....Plan is a Continuing Requirement. The management plan per City Code Section 11.60, Subdivision 9, shall be a continuing requirement on publicly owned or managed property. Page 26 of 51 I City of Shako pee ffflfH-Natural Resources Corridor Design Criteria3!l3/2009~/1/2QQ.9312!2.illl.2.!4/IaQ9,~J.Ii7.!49Q~.1 0!20/2008 Page Intentionally Blank Page 27 of 51 I ~~o~;;:~e ~;1 Natllra~::~; ~O~;i;:i;; ~ri;~a;/I~2;;:~Z:2~;:::~~~~I~]aQQ$1 0120/2008 A. Areas Subject to the Design Criteria. The Design Criteria for areas with upland vegetation address those areas mapped on the Natural Resources Corridor map. Evaluation of these areas will be based on the Minnesota land Cover Classification System (MLCCS) information and the Natural Resource Prioritization Matrix (NRPM). B. Principles for Design Criteria. The minimum Design Criteria for high quality upland vegetation areas include the following: 1. Protect and Connect High Quality Vegetation. Protect high quality upland vegetation areas, and other vegetated, undeveloped areas connecting the high quality upland vegetation, within the Natural Resources Corridor. 2. Protect Isolated Areas. Protect high quality vegetation a~%fil~teutside the Natural Resources Corridor to the maximum extent practicable, Jje'l!f~ delineation of high quality vegetation and retaining 100% of sites smaller ttlhn ~'P~ acr~~ or less than 20% of the develop~ent site, plus a minimum of 50% o":~I~~:~~.egetation for that portion of the site beyond the five acre/20% threshoi";a_;,a1" 3. Encourage Restoration. Encourage (working with other ~r=~tions and willing landowners) or require restoration of high quality upland vegetation areas consistent with an approved management plan. C. Minimum Design Criteria for Upland ~~~i'..if~.~~a~. Following are the minimum Design Criteria that shall apply to the u~~ana vege<'on a~eas. 1. Upland Vegetation. In all zonesi,ll\,qualit'i!T5land vegetation shall be protected or incorporated into new developmen .~.~f~.fl$tructure so as to retain the integrity of Shakopee's heritage habitatareas, encol'ge restoration of those areas, and provide for connections between distinct;areas consistent with the needs of habitat maintenance. 2. Delineation Required for High Quality Upland Vegetation Areas. Applications for any;,pevelopment on or adjacent to parcels that include designated high quality ~SD.Iit.\'4{,egetation must include a delineatio~ of. any high quality upland ve~etation 411' areas on the development parcel. The application shall also note the location of , mapped high quality upland vegetation areas on adjacent parcels. I" High Quality.Upland Vegetation Areas within the Natural Resources Corridor. 'I'~development Iq'regulated In the follOWing manner: "%j;,i. " "1.\'II@j~' De~.~ropment Prohibited. No development, intensive vegetative clearing, or <.._~rng is allowed on any area within the Natural Resources Corridor evaluated and determined to be better or best upland vegetation except for vegetative restoration under a vegetative management plan approved by the city. b. Edge Habitat Buffers Required. Within 100 feet of the delineated high quality upland vegetation sites: i All buildings and roads are excluded. ii Vegetative clearing is prohibited except for vegetative restoration that is described in a vegetative management plan approved by the City. Page 28 of 51 I City of Shakopee Gffitl.-Natural Resources Corridor Design Criteria3/l3/20093/1aQo.93/2/20Q91.f,'1/4..0.Q,~,!.1./.Z!4.Q,Q.810/20n008 c. Restoration. Restoration of native habitat may be required, if determined by the City to be necessary for sustaining the high quality upland vegetation area. 4. Other Areas with Upland Vegetation Designations. Development is regulated in the following manner: I a. Protection of Good Upland Vegetation. No more than ~fl450%t of the areas evaluated and determined to be good upland vegetation areas shall be cleared or graded for development or infrastructure. I b. Exceptions. The City may allow more than f.ifty..per-cent{50%) of the good upland vegetation to be developed if restoration of remaininRareas is completed and connectivity is maintained between high q~aJit~%yegetation areas or to the Natural Resources Corridor. 2/ 5. Restoration. Restoration of native upland vegetation areas, coritiJ~iA Prairie Restoration Handbook for Minnesota Landowners; Minnesota?epa'jrDent of Natural Resources Ecological Services, is highly encouraged in the fOllQ,,~ng areas. a. High quality upland vegetation sites within t9; Natural Resources Corridor. b. All vegetated areas connecting high qLl:8Ji!~li1land, wetland, or shoreland vegetation areas within the Natural R~~ource't~corridor. c. Edge habitat areas and buffer areas "t~1i<lcQ.igh01Q1ht~ upland vegetation areas.''''*''~' ",,'i;4iJ 11\ 6. Conservation Easements Required. Conservatio~~tsemf;ir;lfs shall be placed on I delineated high quality upland vegetation areas, as d~\JJm~i!d by the Gity;th-atCity. which are required to be protected under this design s~ffaard. Page 29 of5l I ;~o~;~:~e ~;) Natural Resourc~:;;~ ~s~ ;;;:;~~/;:;1:~~:;~;;\2~'=:~~:~QQ~IO/20!2008 A. Areas Subject to the Design Criteria. The Design Criteria for wildlife habitat address those areas mapped on the Natural Resources Corridor map. B. Principles for Design Criteria. The minimum Design Criteria for high quality wildlife habitat include the following: 1. Protect Habitat Function. Protect the habitat function of areas identified as Setter or Sest on the Natural Resources Corridor map. 2. Ensure Barrier-free Movement. Ensure barrier free movement beeeen wildlife __,,$'-i''';'''''''-'' habitat within the Natural Resources Corridor map. iF' ;":;,,:;,,:,,,,':"":i.;..:i:.,;.,;,;,,;\K11l:iW. c. Minimum Design Criteria for Wildlife Habitat Areas. Following are th~..illlftttJfesign Criteria that shall apply to wildlife habitat. !'1*""if 1. Site Survey Required. Where the development site includes or abuts~fl'j'"area I identified as Bbetter or BBest on the Natural Resouryes Corridor map a habitat site survey shall be conducted~TheSitesUfVeY~h~~~~d.aspartOfthe Environmental ::md Park Plan Revie'lv and ide:,ti~., a. The type of habitat and species IikeIY'j;~~iliZJ'h~~~:~at, and; b. The necessary conditions to :FI.~Qtai: t~m~i!~'1lc.ti\!!n including protection of core ar~a and edge Vegetl~r~tlther b. '; corrJ1>r WIdth and configuration and other e\~:~ts 0 ""';,~:I:r-f~~~o,',rnent, and any other functions specific to the ~ei!\' ,~.'4!.pf ""$ 2. Protect Functioning of De Ii neated".,as. Sire configuration, preparation, and development must protect the funCtionm'9(the site as wildlife habitat as identified in the habitat site survey. In order to protect the habitat functions. site configuration, preparation or clearing, and development shall: a. ,A!t~~a~rJI"'i~ity of habitat by preserving the range of existing foliage heJ~~~ludm.-i~~f covers, shrubs and trees b. IdentifY.,pitat bu9/"'areas to the designated wildlife area, and identify provision~'",~~irltaining the habitat buffer over time. The habitat buffer shall:',:, i Be a~inimum of 40 feet wide, unless otherwise identified in the habitat site survey. ii Be consistent with the edge habitat conditions identified in the habitat site survey, such as the need for native vegetation of differing heights, including grasses, shrubs and trees c. Minimize the amount of area within the habitat buffer that is converted to lawn from existing vegetation. 3. Barrier-free Movement Required. The subdivision of any land within Setter or Sest areas identified on the Natural Resources Corridor map shall make provisions for barrier-free movement of wildlife across the site and maintain barrier-free movement to Natural Resources Corridor areas abutting the development site. a. Road and other above ground infrastructure shall not cross corridors unless mitigating steps, meeting the approval of the City of Shakopee and consistent with the findings of the habitat site survey, are taken. Page 30 of 51 I City of Shakopee Gffitl.-Natural Resources Corridor Design Criteria3/13120093!~!;(,QQ9.d!1'200914iJjkQ.Q,8.1l./7aQ,Q8.,10/20/2008 b. Corridors connecting wildlife habitat areas shall be a minimum of 100 feet wide. Additional width may be necessary if warranted by the habitat site survey. c. Corridors shall be marked with signage indicating that the area should not be disturbed and vegetation should not be cut. 4. Lights must be Shielded. Lights shall be fully shielded and directed so as not to shine into the wildlife habitat or associated connecting corridor unless required for a trail. 5. Conservation Easements. Conservation easements on wildlife habitat or corridors within the Natural Resources Corridor may be required, at the discretion of the City, as a condition of subdivision approval. Page 31 of 5 ] I ;~:;;:~e~;'t Nalllr~::I~r~~0~~;;;s~~r;~;/~~~~~::;:0;\:~:.SJ.1,/7!4QQ~] 0/20/2008 Threatened Species A. Areas Subject to the Design Criteria. The Design Criteria for endangered and threatened species in this Section shall apply to all areas within the Natural Resources Corridor map. B. Principles for Design Criteria 1. Consistent with DNR Rules. The Minnesota Department of Natural Resources is required to adopt rules designating species meeting the statutory definitions of I endangered, threatened, or species of special concern. The design standard applies to the species on this list, which is codified as Minnesota Rules, Chapter 6134. 2. Consistent with Minnesota Statute. The Minnesota Endangered Species Statute I authorizes the Minnesota Department of Natural Resources to regulate the treatment of species designated as endangered and threatened (Minnesota Rules Chapter 6134). These-'ffi9ulatiGf.lS-a-Fe--GOOmoo~..j:Wje~~ 3. DNR Permit Required. The Minnesota Depart':R1l~.f:of Natural Resources prohibits taking, purchasing, importing, possessing, tra.,~p'&_, or selling endangered or I threatened plants or animals, including their ~rts o(~,eds, without a Minnesota Department of Natural Resources permit. Ttfs:re?~latlo~.l~tit forth in Minnesota Rule 62121800 4!;..'~,..d.Y , . . "I&f'!I'IF,,' 4. Habitat is Protected. Habitat is critical to sustajni~,rhy s~'ies, and in many instances habitat destruction is the greatest risk to en'Q,QJil,$1'.ed, threatened or special concern species. Such habitat within the NatLf.~esources Corridor map needs to be identified an~'fi~ted or mitigated. 5. Natural Heritage Datalse.'_~q~irements exi~t for documenti~g the existence of endangered, threate~~ OrffSp~'~1\ioncern species habitat. Within the Natural Resources Corridor, the DN.., Nat~'a1Heritage database indicates the need for investigation of existing habil\l:@,lfditions. ~-''i'.tiP C. MinimU~~~ign Criteria for Endangered and Threatened Species. Where the devel~rPFen 'site includes an area covered or immediately abutting a site noted on the most rec~1f version of the DNR Natural Heritage database, a habitat site survey completed as pa1!pf the Environmel')tal and Park Plan Review shall be conducted to determine if the site inc~:;: any endangetd, threatened, or at risk species. The survey shall also determine if the~Je any ecologi<;v IIy sensitive resources not in the DNR database. l:."Itenc~.iPProtected Species. If the site survey determines that endangered, .hl.j3,~'cir at risk species or other ecologically sensitive resources are present, all activities on the site, including application process and site design, shall: a. Utilize appropriate mitigation measures that include avoiding, minimizing and compensating for impacts. Examples include landscaping or revegetation with plant speCies of value to wildlife, retaining wooded travel corridors (especially along waterways), and construction or restoration of wetlands b. Comply with the Federal Endangered Species Act of 1973, as amended (16 USC 1531-1544), including acquisition of appropriate permits from the U.S. Fish and Wildlife Service. I c. Comply with the Minnesota's Endangered Species Statute (Minnesota Statutes Section 84.0895) and associated rules (Minnesota Rules Chapter2 Page 32 of 51 I City of Shakopee ~~~I;~ ~~d~~~=3~1~~~~~i~~~~~'~"~~~)~~{~~9~~f~~~i~~~~~~~08 permits from the DNR. Page 33 of 51 I City of Shakopee 8ffltt-Natural Resources COITidor Design Criteria3/13/20093L1/29.Q.S'~/2/20Q.2..\.2!J.!4.Q.Q,~,LU?/4QOgl 0,120/2008 Page Intentionally Blank Page 34 of 51 I ~t~:;;:o~e ~;1 Natllra~;:;;~O~;i;:i;;:ri;:;I~;::~40~;:::~/!:~~I,!~;:~;:"2008 A. Areas Subject to the Design Criteria 1. Natural Resources Corridor Map. The Design Criteria for steep slopes and bluffs address all slope areas within the Natural Resources Corridor map. I 2. All Slopes Greater than 10 Percent%. All areas with slopes greater than 10 percent,%' in the Natural Resources Corridor map and having moderately or highly erodible land, as identified on the Scott County Soils Survey. B. Principles for Design Criteria. The minimum Design Criteria for steep slopes and bluffs are created to meet the following criteria: 1. Erosion, Landslides, Sedimentation. Prevent erosion and landslides, limit increased sedimentation and impacts to water qUalitY',o/ft_" 2. Aes.thetic Int~grity. Maintain the aesthetic integrity of 'CC;~fnUni' by protecting hillsides and ndgeltnes. , .;;<: ) f" 3. Protect Habitat. Protect habitat that needs undisturbed y~._r:low for propagation and sustainability of plant or animal communities:@lIIJi' 4. Minimize Maintenance and Replacement Costs. Ensure that development of infrastructure on slopes minimizes lon~i~term maintenance or replacement costs. C. Minimum Design Criteria for Steep SI9P'''.J~ffS. Following are the minimum Design Criteria that shall apply to steep'f~~ and l'il_~~i~as: I 1. Slopes. In all zones, slopes in eX~~~f 10 ~eFcent% shall be protected or incorporated into new development or"I1j~.~Jructure so as to limit erosion, manage storm water runoff, and protect natural f~af\jres using best management practices (BMP's).tY I 2. ~~~~~~.... 18%). De,elopmenU, "",ul,'ed 'n 'he following ~Y"'en~.:,'. No developmen' 0' ,ege"'Ne oIe,,'ng " ,IIowed I'; tin anY~!fF" 9p~mer-4MM&% impact zone, except for .. vegetatlve~_ration or management under a vegetative management plan II approv~id bYJPle .Q.Gity 'II:;; b. protecfon of Prominent Natural Features. Within the bluff impact zone: 'l~ii;k,nnWis~,1A1I bUild~ngS are .exc.luded.. . .. ".1iwP'lI Vegetative c1earrng IS prohibited except for vegetative restoration that is described in a vegetative management plan approved by the City. iii Conservation easements shall be ,wanted in favor of the Citypl?,c~g.. m //".{ Formatted: Not Highlight ] Jar all~,~tufLa!~?,~,?,~~L~J~tt!I1]R?ct?~~El.s... The edge of the T:fl~,_--,/ Formatted: Not Highlight GOOseFVatioo-easement area?hal~Jl?:V~~flt&:t~igElr1ti~ '" ,,'" Formatted: Not Highlight with monumentsy the edge of tho easement. '>'. F tt d N H hI' ht \', orma e : ot Ig Ig iv Buildings on slopes greater than 1 O. pe~cent%uphillfrol1] th,e bluff ,.." ", \~" F~;~~tted;' Not Hi~hIi9h;"~ m'~m' ,~m'm' ~'] Impact zone shall ~e deSigned and positioned so as to blend Into the "',.f Formatted: Not Highlight ''') slope rather than Sit on top of the slope. "'-(.' l I Formatted: Not Highlight v----Steep Slopes-bet'Woon-4{)...aI1443%. Development is regulated in the following "<- "'" (For;;-;atted: No bllll~;S or numbering "m J manner: ------",-- Page 3 5 of 51 . City of Shakopee ffflttt-Natural Resources Corridor Design Criteria3II3120093.!1a002.3.GaQ.Q2.LUJ.!2.o.ol\.lJ/7r:~OQ.l\..1 0/20/2008 L rF~;;;;~tt~d;F~~t:&;ld" " ~~.......H~-ros~ve-So-Hs-.-tJ(}:~!{)PR1E>l'1t*?I!(l'\le:G-t}ft?f1:Y-:-~EJP""""" ".... .............1 """"",) .'t....................".""............."."..'....... "".'.".1 slopo with n slopo eq.u::t!or9rcat()rth<l!11Qak"i~highly ()r()slvoc()ils", . .. formatted ............................................. according to the Scott County Soil Survey, are prm:ent on the slope. .. ......f formatted: Font: Bold ..........') ) d......-b.-ew--to--MGdemtety-E-r-osfVe---SOHs.-WAefo-5B-i+&-afe-Iew-te modorately erosi'l-e, 3ccording te the Scott Cou:tty Soil Survey, the fGllowms--tiosiW+-Gfwia-shal+be.-met; i ImpGrvious surfoces shall be limited to 20% of the Slope areJ. ii... ....Nol1-l1ati-ve.vegetahol1shall"be-limited.to.2Q9,4,..ofthB..slope aFea,i:.A. iii. "AjlfOadS"driveWaYS"andsswersysterrls~~l~tl)iz:obest l 1 "n- m:m3gemont practices (BMP's) consisten~~~Mii~h~.ng Wat:e-rQf!afit.y"iR-lftb.aflAre.a8-Best..-Mana~I'f1.~tPf.lif}e8 far DoaHng with Storm \,II/ator Runaff from U:'barl'",,~M~lfjrb3n 8r:id-[)eW:!foFJing Areas eF-Mil'll'WSOt'fh--Miflf1eSota-N1Mio11 Centrol !\genG'f;-2-QOO-,e~_ reGont vef'Sioo., h!L:.Shoreland and Wetlands. MinimUm~Ytf.4!~nd setbacks around all waterbodies ~hall be )nCreaSed9~!9_~'.~~'Y~~:::0!<t~J~geejhat are at..m_,,-<:;~ formatted: ~ot Highlight _, . least 50. feet In lengt~ and greater tha')~~:~~~~~)__.m__mm__m______m<.,,~',E~~matted: Not High~~gh~.___ _. L12,_Protectlon of . Rid ,'I\'!"lmel.Wl(~wshed. Steep">(~ormatted: Not Highlight J sl~reas ~md bltlff~ . ,,,,i. .",', - tfH+1.iie-afB 'J forma~ed: Not Hi9hli9ht---'''1 Fldge1me;'VleWshed..proteGt'on..areas,."Rldgellntvle,,~~ ," ed prot€Ctlon.areas shall be subject to the following minimum desi~ll!ii:iriteria: , _______________,,____ i All buildin~~,:(~~~..infrastruGture"'C?!~~~-thar\-df!I/~\JYClys-"-rn~_~! _9_e_"." _ _ _ _ __ _ _", /",,(fo;.matted: Not Highlight deSigne1.~:!: into the slope rather than sit on top of the --" formatted: Not Highlight slope. :. /fJ!/':~ ii All high qUali~:::~ltwvegetation, as identified in the Minnesota Land Cover Classifl13a~jl' System (MLCCS) shall be protected. 3. ~"IOSS than 10%. De'/olopment is regulated in the fOllo'Nlng mannor: ,!!)'.' a.'Highly ErosiVE> Soils. VVhoro soils ::lro highly orosive, 3ccordlng to th~t County Soil Survey. no more than 50% of tho slope orea shall bo cle::lrod or f:::)); develoP.f)4-lfl...aooi-tion,..aII-U1e-fGllowing-provisioR-s---stlotlld-be--met. .c':n:,; '.h i i1'MP'S for the ins:ollation of roads. drivewoys, ::lnd sewer systems. iI;i(!!l/"rotlJd..be.{)OflSl&tent-wi-th-deslgl-l-cHtena--fo;:...slopeS-Wllft...Rlghly...eroslve ~!:llI::llr. =~~;~~~~r;;.;:5=~/:;:;~~~f;:~7f~/~;~:;;;;~~~~est Urbon, Suburban and Dova!opfng /',roos of Mfnnosoto. Minnesoto Pollution Control Agency, 2000, or moct recant version. ii ........Developmonts.th-at.instaH...infFastrtlcttlfsin.highlyerosive..soils...mtlst devolop rn::lnagemont plclns :md provide for ongoing main:on::lnce fw:l~re48G&-the-f)OtentiaJ...I+fgJ1..cost for public expenfJitw:e--of infrastructure maintenance. iii ......R.equiroo.btlffefs"afotll1dwatefbodies"willbe"extended.based"on,slope grode and longth of slope area. h. Lo\'\' to Modoratoly Erosive Soils. Whero coils aro low to modomtoly erosivo, no :Addition;)1 pmctice&-afe-requlred to the gef1effik:lev-elBf)ffiOP.t Page 36 of 51 City of Shakopee Gffitl.-Natural Resources Corridor Design Criteria3/13/20093..i1I..fQ993/2i20Q.2.!4f..Uz.Q,Q~JJf7.aQQ~1 0/20/2008 requirements"ooscribed.in.this.oniinanGe-,-Bxcept.as.descr-ibed"in.thB Shoroland Overlay dictriGh c. Vegetativo Clearing. No intensive vegetation clearing is allO'.ved for arODe 'Nith high quality notive vogGtotion 3S identified in the MLCCS except for r~~~~~~ffi~~"~~OO~ 4. Building Design Considerations. Buildings on Slopes that exceeding 1 0 percent% and are longer than one-eighth of a mile shall be designed to blend into the slope. Design considerations include the following: a. Locate and design buildings so that they do not loom over the bluff b. Break up building mass using methods such as broken rooflines, stepping back (from the downhill perspective) minimizillil..~mass near waterbodies. c. Use materials that blend with the setting; avoid the use d. Use suitable colors; subtle, subdued colors are best e. Buildings within 50 feet of the bluff impact and within 100 feet from the top of a steep slope should not exceed in height. Buildings higher than 40 feet should be set back from zone an additional 25 feet. Page 37 of 51 I City of Shakopee 1'*a4-Nalural Resources Corridor Design Criteria3/13/2009}!1/.4QQ23/2/20091.4/J/.4.Q9~'!"!/Z/?Q.Q!l.l 0/20/2008 Page Intentionally Blank Page 38 of 51 I ;~o~;;:o~e~;': Natura;;;;;~O~;i;:i;;~ri;~;I~:0;3;:::;;~O~;::~7~~;~~/:~OO8 A. Areas Subject to the Design Criteria. The Design Criteria for recreation opportunities in this Section shall apply to all areas within the Natural Resources Corridor map. B. Principles for Design Criteria. The minimum Design Criteria for recreation opportunities are created to meet one the following criteria: 1. Sufficient Quantities. Provide for fully developed parks, trails, facilities, and open space in sufficient quantities to meet the needs of the City. 2. Enhance Natural Resources. PreseNe and enhance the natural resources of the community and provide residents an opportunity to interact with the natural resources. C. Minimum Design Criteria for Recreation Opportunity. Design Criteria that shall apply to recreation areas: 1. Comprehensive Plan. Conformance with the most recent version of the Shakopee Comprehensive Plan 2. Ensuring Public Access. Provide public Natural Resources Corridor map when development and redevelopment review Page 39 of 51 I City of Shakopee Pfa4-Natural Resources Corridor Design Criteria3/I312009~'11i,OQ93/212009 !.4jJ.t:!Q.Q~.u.n!4.Q,Q~,l 0/20/2008 Page Intentionally Page 40 of 51 I Cs;~ltt;~ !;'osatural D;;ctg~rrC~t~;i~tef~~3Ao;~~~~3{bi,it~;,2~f;~~~~~~~~;~ A. Areas Subject to the Design Criteria. The Design Criteria for accessibility/infra-structure in this Section shall apply to all areas within the Natural Resources Corridor map. B. Principles for Design Criteria. The Design Criteria for accessibility/infra-structure are created to meet the following criteria: 1. Utilize Easements. Utilize publicly owned or managed easements, outlots, and unused right-of-way in the Natural Resources Corridor. 2. Accessibility. Provide accessibility to Natural Resources Corridor areas by the public. C. Minimum Design Criteria for Accessibility/Infrastructure. Following are the minimum Design Criteria: 1. Conformance with the Americans with Disabilities Act. 2. Conformance with the most recent version of the Resource Management Plan adopted by City Council. 3. Conformance with the most recent version of the City of Design Criteria adopted by City Council. Page 41 of 5] I City of Shakopee 8-ffil+.Natural Resources Corridor Design Criteria3113120093/1a,QQ93/2/2009.j),'.!./499.$..!..1/7a.oO$1 0/20/200& I Page Intentionally Blank Page 42 of 51 I City of Shakopee Gffitl.-Natural Reso5C;~ti~o;;1rweriC~~~3~~~i~/i~2;09)2/1/4QQ$lJni49Q!l1 0/20/2008 A. Areas Subject to the Design Criteria. The Design Criteria for connectivity shall apply to all areas within the Natural Resources Corridor map. B. Principles for Design Criteria 1. The minimum Design Criteria for connectivity are created to meet one the following criteria: a. Provide for fully developed parks, trails, facilities, and open space in sufficient quantities to meet the needs of the City. .fl>", ~"pl'-'---'~~:::::_ b. Preserve and enhance the natural resources of the comnlmity and provide residents an opportunity to interact with the natural re5ou\1im.,)~,tf4i;~11 2. The Design Criteria are to ensure compliance with the existing planni~g d~9(,inents: a. Shakopee Parks, Trails, and Open Space Plan. The City of.~'opee Parks, Trails, and Open Space Plan (2004) includes goals, objectives, and policies. This plan outlines the direction follilarks, trails, and open space in the City of Shakopee. lii;~tl~$; ''*;I'f( b. Scott County Parks, Trails, and OP~~)Spa~~' PI~~;iThe vision statement for the ~Ian state~ "The vision for park~~~)~fl~:: space in Scott County IS a coordinated system of natura r~iI)se based parks, open spaces, and trails that enhance the quality Of ,I, e fO~f!Rlt{lsent and future generation by acquiring, preserving, develoPi~.intaining, and managing important natural, historic, and/or cultural area'vi1CJ landscapes; providing opportunitie.s for ~~_::ti.~nal enjoyment and education of th~ public; and complimenting tn or> :.~!,!nltles offered by other outdoor education and recreation provi,s'''''llJ~~f also contains goals and policies for the creation of a par );trll~, art~ii;~pen space system. c. City of Shakopee D,.'criteria. The City of Shakopee Design Criteria ~;,), and General Plan ReqTJi ements for Grading, Street, and Utility Improvements ,iMjjj&1;i~as created by the Engineering Department. This document provides JiV information and design criteria for sidewalks and trails (Section 9). Sidewalks dtf are important lateral connections for the trails system and provide residents ,,;, with saff access to trails, parks, and the open space system. C. Mi~ti~,m Design Cril~ri~ for Connectivity. Following are the minimum Design Criteria that~'IIN.~PIY to ,,~,nectlvlty: . . . 1. "'\I\.ce With the goals and policies of the most recent version of the Shakopee Comprehensive Plan adopted by City Council. 2. Provide connections between natural resource features where a Corridor Connection X Formatted: Not Highlight --"------) is identified on the Natural Resources Corridor map in one of the following ;', Formatted: Not Highlight procedures: :/ ',' , Formatted: Not Highlight a. 20 foot wide_tra!l_eC!~~rn_El!1tgranted to the CitY'__m_m_uum_"m__m__muu_j:,'/';'~~il....~ed: NO~i.\l~'~!_~~__~___._,,,] b. ,An o()_LJtlo!_de~i_cC!t_El(U(),th_El_C;[ty... on the final Rlat which will ~0_~ta_i~~fl}t~_~9_u__J/-'..,Gorm;tted: Not",:,ighli9ht- -~~-"--~ -"'''1 foot ,wide tr~!le9.~~rnE3n.L..____nu_.._________,,___u_____._____,,_______________________ _. ____./ / Formatted: Not Highlight - c. MG-_o~~~r~_~ti_o~_ec~~_ern_Elntgranted to the City that s",allows for-:<>~~f0if1g_a_n./::-- ~~~_I11~tt~~: ~~~Hi~~I~g~t_" J 20 foot. wide trail to be constructed within the easement area _tr~iIE:),?s~.'!1ElI)~:____------f Formatted: Not Highlight """-::] ------r~tted: N~~ighlig~___.. ::=~..:J Page 43 of 51 I City of Shakopee Gffitl.-Natural Resources Corridor Design Criteria3/I3/20091:1/2.QQ,9~..a.l1QQ.2.!2/.1./2Q.Q~J..1./.Z!4.Q,Q~.1 0/20/2008 d.-.-P-aFk-!ane-dBdieated-to-tRe-Gity.-<::..oot-aiRing-a--2G-fooUfaH-€laS€ffieFlt, 3. Native planting consisting of native seed mixtures, native shrubs, or native trees are to be used in Corridor Connection areas. Page 44 of 51 City of Shakopee ffffH+-Natural Resources Corridor Design Criteria3II3/20093i1a9Q2J..'2a9it2.!.:Ul!2.Q.Q.~L\!7aQ!l~.1 O/2(}/2\lG8 Section 11 Definitions 1. ^pplicant means any person proposing a Development. .... ,-' " Formatted: Heading 1, No bullets or numbering Buildable area of land means the minimum contiguous area remaining on a lot or _..__._._._______0___.____..._.___"_ 2. parcel of land after 311 setback requirements and buffers, bluffs and restricted steep &!opes, easements and rights of way, historic sites,wettaRds,.-a-nd--klM-belo'.... the ordinary high .....ater level of public ....'aters are subtracted for the purpose of placement of structures. 3. ", ~.I!_iff:~:~~~~.?_~~.PQgr{tpJ)J~ :~~tl!r~ ~~~-~~. ~!U! .!'!m;:~:titfJ. ~r .~.~~a-'-".~~.~~r:n3j"!!l.U t~El . _.' ( Formatted: Highlight J follo'Ning cnaraoteriStics: Tne:$I.Clpe rises at least twenty fixet2~;)Jeet inQle.vati~n above the tQ~of tho',bluff; -- " A:ny;a:(Ci'-:'Nith~ horizontal dista'ocq.dJ;SO feet ormolte as m~a~~redWnil:fa!I'{ 3101'19 !bl) I?luff fal:le;(p9~P,1~ndicular to the slope;~{j,htourrtha~;ijil~ ahavi:l[~ge slope less tJ:wl.48%J~!lot COIlS~ea::pa:rt Cltttle bfuft. ,,-. .;-1 e. ',. A dist~nceequaltCl QI' grciltort~~n 6GQ'{e:et!a~ n;aeasul\~~ hl}r1iGn'fully~'r~lJg tijc mostElir:ectroute aHfi'iltop of bluff in the blufffaco. The hor'iilhltaJ lilistaAae can extend l?evond Jfr.o~rt'l Ji,,~; [gluff-f th b tw -in ~of the-bJuff s-t f-the-bl ff /rCo;n;;:;~~tiRH5j;""-'-"" i mm......"; , ,aGe-means- e area e een e, , -" -an 'GjH) U .'.__________...__, " ,..............---......,................... 1 ;;.; , '''$._, ..", ,. , ,{ Formatted: Font: Not Bold ------- 4. Bluff impact zone means a bluff an(t01~nd IO~!$e within fifty (50) feet from the top -- o-r-the-t-oe of a bluff. i"';".. ' '%:\0' 5. Buffer is an area of natural, unmaintaih~4, vepJhted ground cover abutting or surr-oum:ling-a-wet-land;-waterGourse,wateFbod~~abitat-area,or-otner-natur-aUeat-ure.. Ii. Conservation Eosement is an easement gr'nt-cd in favor of thE! City l!nd recorded the County for an easement over, , rivate-ly-owned;-but-if..t-I1e-land.is-sold--or-passed-to 1.---Gon==~____e_tth_'m.. ~~~t~~nl~1 d' y' ~ ~~:r~~::~~~ :~~c:,a:P:V:~ t~~u~~~\~ a conservation subdivision--where-lots--ar-e-Gmstered-and-Gommon-opens--&paGe-is-pr-ovided. 8. Conser\<ation subdivision means a method of subdivision characterized by common op&n-space-and-Glustered-Gompact-lots,with-the-pur-pose-of-Greating-greater-community value through open space amenities for homeowners and protection of natural feSOUFCes, while allowing for the residential densities consistent with prevailing densities. Site designs incorporate standards of lo,\': impact development, such as the use of some single load roadways and narrower rights of '::ay, looped road 'Nays versus c-ukW-s-acs,-maximum road setbaGks..for..str-uct-ures,and preservation of trees, sl1orel-ifle; unique resources, and scenic vistas, and these developments use stormwater designs that-emphasizo on site-retent-ion and infiltration through the preservation of native vegetation within the shore impact zone, use of pervious surfaces, rain gardens, and swales. 9. Core hobitot oreo means the central area of a patch of habitat which maintains the habitat's pro fragmentation conditions. Page 45 of 51 City of Shakopee 8fajf-Natural Resources Corridor Design Criteria3/13/20093/15?J!.9..93/2/2009!.4D.if.\l.fl,~!J./.7.14Q9n 0/20/2008 10. Corridor Connoctions means a corridor that provides residents and natural resources an opportunity to travel between natural resource areas identified on the Natural Resources Corridor map. 11. Dklmeter at Breast Hoight, or DBH, means the length of a straight line through the trunk of a tree (in iRGt:tes}-measured at fjfty four (54) inches abo-ve-tAe-iJrolHld--from-tRe uphill side of the tree. 12. Dovolopment means any activity for which a preliminary pla~r subdivision, conditional use permit, variance, building permit, or grading permit is required. 13. Driplino means-an-imaginary vertical line that extends--from-tt\e-Guter-mos-t branches of a tree's canopy to the ground. 11. Easement means a limited property right to make use-of-a-pa~ lot owned by another person, such as a drainage and utility easement or conservation e:1semont. -l-S~--E-Gf}systom means--the-whole of the eRvirol:U"ent~k:alyii~!;~i-cal,.and biological) and the organisms ...:hich interact 'Nithin that SystOlJIJ:II!;,j;,;, , :;tu";~ '::::.~.::= =: :':'~:::~~:'.~9':u.. th" core habitat areas.,,",,,, I11M'111 17. Endangored Spocios is a species threat-oned with extinction throughout all or a significant portion of its range in Minnesota. 18. Fr::lgmont::ltion moans the process that occurs as people use the land resulting in t-he-natu'r-al...JanGsGape-being-dWided--into-aveF-Smaltel'-piec~oo-aRd-utility corridors and residential, commercial and industrial land usas. The remaining natural areas, or fragmants, are reduced in size and degraded in quality, resulting in a decline in plan~mmal--populations, an<!!i1ilitsaw&araRG&-of..s-ensiti'le plant-an4-animal communities. (!"!@!m) Figura: Fragmentation ~ . l'~ >,,' J:h: ):~t~::fn "'iiil "--<'i:df/ '",t'. Page 46 of 51 City of Shakopee fffaft-Natural Resources Corridor Design Criteria31l3120093/J/2GQ23/2/20()912LI}4.QQ$.~,L']/4Qo.8~Oi2()i2()08 ~ 100 75 75 . 50 ~ 0 25 1h)J1:1 J~n;}t (', Proportion of htlbitat mm/Sllntng (%) !~F}S, diM Mum lwbltai s!j(~d{dj.s'H, Formatted: Heading 1, No bullets or ] numbering , , :rrid:~~i~~~~=~~~:~n~~~~~tP~~:~ a~~~:~~ ~~::t:~~~:~ ~::;~:e frGm-numafl-dfsW:Fbanceth ';~;;0 ,.r~l_'i.,fi :1 ::i~;:::::::':::~".tE: :;~:: ::'~i::;~'R. ..'Ie,'.: b. Ha~a;A.ll;IeClual to or ~reater than 24 inches (3 lesser size tree may b~ co,!~ide~{f to be '3 Herita~e Tree if it is a rare species or can be utilized as a focal point in tile proJlct;A coniferous tree .....ith a DBH equal to or greater than 24 inches. e. ~ life expeJancy of greater than 10 years,;,. ii!llMlf} "I'. d. .H3iitliiiO ~i'Fstructural integrity a!ld show~ing no, ...isibl~ defects that would cause-It-tG 6~4_1fled as a Hazard-Heei;Sl9ns-Gf..deGay,disease,.-Gf-llazafds.- e. ^ lesser size tree can be considered a heritage tree if the City determines it is a ~r of exceptional quality. f. ^ lesser size tree can be considered a heritage tree if it is utilized as a focal point in-t-Re--prGjeGt. 22. High quality '/oget3tion means those areas identified in the Scott County MLCCS land cover survey with native vegetation and rated as "better" or "best" sites ill-the Shako pee Natural Resources Corridor maps. 23. Highly orosivo soils means those soils designated as highly erosive in the Scott County Soils Survey database and maps. Page 47 of 51 City of Shakopee fffltff-Natural Resources COlTidor Design Criteria31l3/20093/1aQQ.93/2.'29G21.4i.L2.~,~,8,L!.l7n.QQ,81 0/20/2008 24. Infmctructum means roads, drive'Nays, parking lots, .....astew.atcr, stormwater conveyance, water, electric, gas, or telecommunications equipment, pipes or associated support structures. 25. Intensive vegetative clearing means the removal of trees or shrubs, or perennial ~Fasses in a coAti.guous-patGR, strip, row, or block. 26. Minnesot::1 L:md Cover Classification System (MLCCS) means the land cover GJassification system created by the Minnosota Department of Natural Resources and the completed land cover survey data collected and mapped by Scott County consistent with the MLCCS. The classification system consists of five hierarchicallovels. Levels 1, 2, and 3_are a hybrid based on the National Vegetation Classification System and the =~ ~ural Heritage ~:t =:~~i=~:';~ ;:~:~,:d 5 use ~,Minnesota Natural Hcritage-system--t-o-more oxplic-iUy idontify plant commu~ ~f' .m,' 27. Minnocola Routino ^ssossmont Method (MnR/\M) i6 3 wetland fun~!}!~~lI.;I!?sment tool created in Minnesota by an interagency workgroup in 1991~~1~ll'M,~ roelt'Offi~i:"S make sound wetland management decisions based on data gat<<er~'in the;,t~~,~i#,4This t-OOl-e-v~te~the-felIO~in9..functi()nS-Of-a-wetla~-and-establt~pfa-vaIT-()fw> ~x~:::::~' :~' :e:I::, :; I:: ~r ea;::n~I::~~AM G,~ro;;I'Je General Guidance document, Board of Water and Soil Resources): ,;,;:;111011,'1 1. Vegetative Diversity!lntegrity 1-..----Malnte-Aance-ef-Characteristi-c--Mydrologlc-Regime 3. FloodfStormwaterJAttenuationdlll.tt.& :$( ~~'T 4.----DowRstream Water Quality '1IiJ' "~ ~*'~-";-::~:':'+;" -,{V 5. Maintenance of 'Netland Water QualltY'>, ';;,(i' "11:1 ,if h # 6. Shoreline protection'\y' +.-Malntooarlce of CharaGteristw-fish-WabUcf.t :=:.: .5iB.: = :: H.." .:. :~~"~-;~=L,:' ,. 11. Groundwater Inte~;_~"J +" 12. 'Netland Restoration1!lfcntial H.---Sensiti-vlty-to-Stormwater and Urban Development 14. Additional Stormwater Treatment Needs 2-8..---Nat-l-J-ral-ResOOfGes--GGFr-iGor-MafH'O-fe.rs-t-o-tRe-mos-t-l'eceAt-ver-siofl-.Gf-the-Shakopee Natural Resources Corridor map approyed by the Shako pee City Council. 2J}.-Natl:.l-ral-Resoofce-P-riOOtiz-atioo-MatFfx-{NRP-M)-fefer-s--t-o-tRe-matrix-system-cmated-by the Shakopee Environmental Advisory Committee to evaluate natural features for the creation of the Natural Resources Corridor map. The -NRPM is included in the Natural Resources Plan component of the Comprehensive Plan. ;roo N3tive-vegetatjoo-means-p~mumties--t-Ra~Gcur- naturally in the Shakopee area. 31. Patch means a relatively homogeneous type of habitat that is spatially separated from other similar habitat and differs from its surroundings. (Forman, R. 1995. Land Page 48 of 51 City of Shakopee Gffitl.-Natural Resources Corridor Design Criteria3/13/2009J/.1/;;,Q093 '2.'2009 1.:2/1 /2008 J 1/7/2008 J 0/20.'2008 Mosai~s: The Ecology of Landscape and Regions. CambridgeUni\'orsityPress; L Form~tted: Heading 1, Indent: L_e.!!_O~__J 1()~ ~ Figurt" from !)1.~rwr.\'~t:1hm .t]l~~~p'hIs ill CORE tQL_L-_~mdJJ.$..Pl~uliw.~> The Envif(wnl.cntal L~l\V Inst!tUk. 2003. W~\$hlngtl.o)n D.C'. .' EDGE SBN # 1..5S576~}85>>7, . PMch s1Mpesmd .1lfI. The edle to intenor ratio I.1fahfJlbi~ tat patch Is affected ~ f)fjltch shape, A more convoluted.. irresu/ar. or tlrteaf patch wilfhaV9" a hliher mopertlonof C<JflC. thus. increaSins the number of ~$pecies f1ndf.'fecroaslngtbe number of interior species. jV~~'\)., ,'~ 'vWqi'tw/ _.._...~._.._-_...__....__..__...._-_....__._........._................--...........,......, 9. Recro3tion opporff;l'-i::>?S me~s an area that provides residents recreating an +-- -- Formatted: Heading 1, No bullets or opportunity to interact witJilRatlJF31 resources in the Natural Resources Corridor. numbering, Adjust space between Latin and Asian text, Adjust space between Asian text and _"iF" +. numbers m""m' ",.,,'tt;...',....,..,......,...',' , ......,t,...t^"',," ,', . ,....,...,......,....,............'.."..,.. ' ,",,' ",','......'..,'.."..','..','..'..','..'..'..',"""',,..'.""'.'.',,',',',.",'. Formatted: Heading 1, No bullets or J ,;.iI..;;".,"','",.~!I~~IInel'li~....~~~~~,~,~.,~s".ana~;~;v:it~,..~.~I~~~~..~~a~..I~..~~~~!e:~:,s~r'tn~.~:.:t~".", "'. numbering . p~~~;:;~~~:~~~~~a,s~itfji~;I~!l,~~~;!'l~~~~@tl;J~!iJ,~~' fe-etaEi,~!il~$i!fre.a~{i)tiiQ,FltaIIY a!g!.'J!J:~l'lg _ _ "".. "'" rF~;;;;~tt~d;Hj~hij~ht' .ml m0st(llroctr~uteQIthea,.ea:.tlj'at'NQuldbecdRsi(lere(l t110:fiIUffIaGe:" -;:.' . ',', ,.mmmm:m:mmm mm. mmm.; ... " I Formatted: Highlight I 32. ~ight of way.is a narrow length of land used fur the route of a railroad, electric \\>.:'f!ormatted: Highlight j power line, or publiC road. '\;"j F tt d H' hI' ht - -'=~~'=l ,,'. , orma e: Ig Ig 33. Riparian refers to living or being located on the bank of a natural watercourse or..:t~~;;;;~~~d;Hi~hli~htm mmmJ sometimes of a lake. "r~?'~~'~~~~;..~?;~~..~?~..~;;'I~:..~i~~;j~6~ ,.....................1 34. Riparian Rights are the legal rights of a landowner o.....nlng riparian land. 35. Setb3ck is the minimum horizontal distance between a structure or other specified item-sudl-as--a-wetland~JYo Mi. Slope refers to the continuous inclination of the land surface for a distance of at least 5Q feet, when measured perpendicular to the contour line. Most often slope is Page 49 of 51 City of Shakopee Gffitl.-Natural Resources Corridor Design Criteria3/13120093.!1aQ.Q93!2/2QG.9.!.~.!Ii2.Q9,~JJ/7/49g$1 0,12G/2GG8 defined as the percentage related to the inclination. For example, a 25% slope would have a one foot rise in land for every four feet of horizontal distance (see diagram below). 1 ft rise.l4 ft distance - 0.25 1 ~t ~ 0.25 "100 - 25% slope - 4 Ft - Not to Scale Formatted: Heading 1, Adjust space between Latin and Asian text, Adjust space between '1\"", Asian text and numbers -,J0+w,j~ : ~ec:~orn SPocie~~ a :~:~ies not listed as endangerod of., ~~t is ...-....' ~~:':~ed: Heading 1, No bullets or G-Onsidered extrome4Y-{,H1Gommon in MinnesGta-Gf-llas-l:ffiiquEH)r-highl~"::,:, ,', "~,::"b't t ' ...............-!-----.--.--.-- requirements and deserves careful monitoring of its status. Species on the periQllery of their range that are not listed as threatened may be included in this catego~~g with those species that were ollGe-thfea.tened-oF-endafl9~ROW-have-mGf'ea~ ........:.. 5".'. .o.u'atlons. . .~ descri~ a ~ ::~a~:e\~~~~: :~~ ",\,' '\.i:'ik, . c . 'cs, _E=:~~==_,l=~to':.n':' reports. '.!'!here specifiC information is not aVailable, s~OOI%SI~ir arS lands vJi!l! the ill . h 'f ""~ '" o Qwmg c aracterrs ,cs: i~'({ffi 'Nith aAverage slopes equal to or greater than 180'l;r'{i~~<< measured o'ler , "m"m_m,,"'mmmmm..mm'_'_ mm horizontal distances of fifty (50) feet or more, that are not bIUffItL,m"mmm..__,__mm.. .__....'. 'L!ormatted: Font: Not Boldi A distance of 50 feet or m9,~\I'i~easured vertically along the bluff f-ace. most dCe~:~~~~: :i;:'~ :~po~~lie~~~f~::e~S T~:a~~~~~~~~i~~~~~=nd beyond-pr-Gpeft:.y...li-nes. 'I",:,.,,','.,;,,'~,.,:,",.,,',,',',.,'," ,', Sf . ..:-"~ J8.-.,:,~., 39. TtJfedto~~€l Spocioc is a species likely to become endangered within the foreseql5le future throughout all or :1 significant portion of its range 'Nithin Minnesota. 40. 100 of ~ho b!uff m9rns the 10'Ner point of a fifty (50) foot segment with an average slope 'Ii~edtng 18%',.1 11. 111"f~ftho b!uff~:~ns the higher point of a fifty (50) foot segment 'Nith an average slo",e exc..J ~'t!!,~ ":,,," \V}/;t~]i~~:JWMHjfw 12. Troo mean'!";' living specimen of a woody ",Iant species that is either a deciduous tree whose diameter is six (6) inches or greater at DBH, or a coniferous tree whose height is l1",el'le (12) feet or greater. '13. Woodl::md means the area within the contiguous dri",line created by a grouping of trees. H. VV€tland means the lands transitional bew/een terrestrial and aquatic systems as defined in the Minnesota '}Jetland Conservation Act (WCA). 15. \.llJotl:lnds, Exception;)! V{llue are exceptional and highest functioning wetlands or those sensitive 'lrotlands receiving conveyed storm water runoff that have yet retained a medium level of \'egetath'e diversity!integrity according to the MnRAM 3.0 evaluation. Page 50 of 51 City of Shakopee Bfaff-Natural Resources Corridor Design Criteria3/13/20093.i1/499.'!3L;lJ2QG9 !.4l.1.i4.Q.Q,$.L\.!7/4Q9.~.1 0/20/2008 These 'Netlands are most susceptible to human impacts, are most unique, have the highest community resources significance such as rare species habitats, and similar characteristics. 46. Wetlonds, High Volue are high quality wetlands according to the MnRAM 3.0 evaluation. These-wetlands are relatively undistut'bed-but-e*"-ibit-evideRce of more disturbance or degradation than Exceptional Value \":etlands. High Value .....etlands have conditions and functions that are susceptible to human impacts, are connected to other wetlands or'lIatercourses, and may contain locally significant or rare wetland types. 47. Wetlands, Medium Value are .....etlands that provide medium functional levels according to the MnRAM 3.0 evalautionevaluation. These .....etlands typically provide a diversity of habitats, are connected to other wetland or upland habitats~~o\'ide wildlife J:labitat,aml-eftef1-l*O-vide-t-he-opt-imakes-tol'atic:m-opportuflity. fi ~~'cordi~~~~s~ ~R~~u~.~r:V;I:~r;::~:~:a\~:t~:~~~~t~:~JI~;~EHO further ~mpa~ts t~an. the o~her wetland mana~~ment classifications. They a~oi've low vegetatwa-dNers4ty-Jintegnty-and.no-connectNlty-toother-wetlands-and-water-eourses, 49. ~::t;:1 Boun.dary is the delineation betwee~ ;=C:~d '::etla~d de.termined aGcGrd lAg to the-lJn-ited-States-Afmy.-Cofps--o-f-Cng R " ,.. .;......tl-and-Cehneation--Manuat ~J:n:~ ~:8~. ::~:l=:::::e ~~Si ~e =int:clf~~ing to United States Fish and Wildlife Sen-iet) Circular No. 39 (1971 edition). 'L'G}J1*!f/.J~. . - . ~,:S?,~:~k~>"'. ' Li , , , , wetlaoos;-B)-inc-I'ease-the.quantitYj-(fuaJ.ity,and-biologiGal-, ''W" ",',.':,:./ ' f-Minnesota'-s wetlands by restoring or enhancing diminished or drained ,,"..s; C) avoid direct or ~~:~~~:i~~~~;~ :~~:~~~~~i;:e ~.~:~~~ ~~~u~~a;~~~ ~~~::;::edOf ::.tiVit~,~.~e:;;:::::~::i~lSi:~:::et:::~:~a~::::r~~:~t unit in compliance with Chapter 8420.Q225 '-i'NCA identifying the wetland boundary. 52. VVetlond Roplocemont Plan is an application form supplied by the applicant proposing wetland impacts. The components of the plan must be in compliance with the requi-f'e.meRt..of.-Chaf)ter-a42(M)530-of-t-he-WCA- 53. Wildlif-e corridors are linear landscape features composed of native ':egetation that GOAAect-two-()t'-more-habitat-l)atches-to-attow-for--the-movement-of-anima~sr-birds-and other species. 54.--Wildlif-e.-habitat areas-means-al'eas-identilled-as-better-Gr-best-wildl-ife..-habitat-on-the Natural Resources Corridor Wildlife map. S& Woodlond means the area within the contiguous dripline created by a grouping of ....'oody plant species if the grouping contains at lead one (1) tree. Page 51 of 51