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Home My WebLink About15.D.3. Grading Permit for SMSC Village East Subdivision . )5, I), '3 I CITY OF SHAKOPEE Memorandum TO: Mayor & City Council Mark McNeill, City Administrator FROM: Bruce Loney, Public Works Director SUBJECT: Approval of Grading Permit for Shakopee Mdewakanton Sioux Community East Village DATE: October 5, 2004 INTRODUCTION: Shakopee Mdewakanton Sioux Community applied for a grading permit on August 10, 2004 to excavate for stormwater storage/infiltration pond on the 40 acre site in the City of Shakopee. This agenda item is to discuss their grading permit application and what conditions should be placed on their grading permit. BACKGROUND: A grading permit has been applied for by the Shakopee Mdewakanton Sioux Community (SMSC) on the 80 acres of land that is in fee status adjacent to 80 acres in trust, which is adjacent to McKenna Road in the City of Shakopee. The (SMSC) is proposing to develop the 80 acres in trust for residential housing, move the existing pond. and drainage facilities in these 80 acres to the 80 acres that is held in fee. Thus, a grading permit is required under Chapter 11, of the City Code. A 'grading permit with drainage calculations and proposed plans have been sent to staff to review. The City's Development Review Committee did meet on August 11 th and August 25th and have determined that there are several issues associated with this permit that need to be addressed for possible approval. Attached to this memorandum is an August 30, 2004 letter to Kreg Schmidt, who is with Bolton & Menk, Inc., who is a consultant engineer doing the work for the SMSC. On September 15,2004, a response from the SMSC had been received on the August 30, 2004 review letter. Also attached to this memorandum is a September 7, 2004 review letter from WSB & Associates, Inc. on the storm drainage review of the proposed development and grading permit and a September 2ih response letter from the SMSC. , After review of the grading permit and associated proposal, the major issues with the SMSC proposal are as follows: 1. Accesses to McKenna Road as proposed by the East Village Subdivision 2. Compliance to the 1999 Stormwater Management Plan 3. Impact to the downstream channels, such as the Blue Lake and Prior Lake Outlet Channels. 4. Impact to future CSAH 21 alignment. 5. Maintenance responsibilities of proposed ponds. Issue No.1. Accesses to McKenna Road - This is not associated with the grading permit approval, however, would require approval from the City as part of a right-of-way access permit. McKenna Road is designated as State Aid route in the City of Shakopee and in the City of Prior Lake and adequate access spacing should comply with the City's adopted Transportation Plan. Staff has met with the applicant and their engineer and additional information has been provided on the future grade of McKenna Road. The access spacing proposed nearly meets the City's guidelines and will be for a five lot frontage road. Staff believes this access spacing would be acceptable after review of the future design of McKenna Road. Issue No.2. Compliance to the 1999 Stormwater Mana2ement Plan - The proposed development is proposing to discharge approximately 130 cubic feet per second (cfs) in the 100-year, 24 hour storm event which would drain into the Prior Lake Outlet Channel and also come into Dean Lake. The City of Shakopee's Stormwater Managt;:ment Plan proposed a .1 cfs per acre peak discharge for this 500 acre area located upstream of the major pond. In order to meet the City's .Stormwater Management Plan, this discharge rate should be reduced to approximately 50 cfs. Staff with WSB & Associates, Inc. and the Prior Lake-Spring Lake Watershed District has reviewed the calculations. The peak flow rate is higher than planned for future improvements to the Blue Lake Channel and Prior Lake Outlet Channel. These flows could be accommodated in the upgrading of the channel and cost ofthis flow should be allocated to the City of Prior Lake and the SMSC. If the SMSC provides significant rate reduction in other areas of the Blue Lake Channel, west of McKenna Road, this additional flow could be incorporated into the channel design and meet the City's overall Storm Water Management Plan. A condition has been written to address this flow into the city's overall Storm Water Management Plan. Issue No.3. Impact to Downstream Channels. such as the Blue Lake and Prior Lake Outlet Channnels - The City of Shakopee in conjunction with the City of Prior Lake and the Prior Lake-Spring Lake Watershed District, have been working towards a new Joint Powers Agreement for the upgrading of the Prior Lake Channel and the City of Prior Lake and in the City of Shakopee to serve all three entities. The current Prior Lake Channel is not adequate or stal:>le enough to serve the Cities and the Watershed District's needs on a long-term basis. The PLSL WD has completed an EA W on improvements to the Prior Lake Channel and is programming the funds for future improvements to the channel from Prior Lake to Blue Lake. SMSC has significant land holdings both in trust and in fee that are tributary to the Blue Lake and Prior Lake Outlet Channels. There is no agreement with the SMSC for any cost sharing or contributions for the upgrading of these channels due to development of their land. In other areas upstream, such as Greenfield and Park Meadows, City staff has required developers to pond the toO-year storage of 7.2-inch runoff event, which is a 10...day snow melt and infiltrate on-site to minimize the impact to downstream channels, such as the Blue Lake or Prior Lake Channels until these systems are upgraded. Staff has incorporated a condition for the SMSC to meet the Storm Water Management Plan, or obtain approval from the PLSL WD on this flow being acceptable or reduce flows in other areas of the Blue Lake Channel. Issue No.4. Impact of Future of CSAH 21 Alignment - Scott County is currently performing an Environmental Impact Statement on CSAH 21, from CSAH 42 to CSAH 18, and one of their alternatives would conflict with the location of the pond as shown in their grading permit application. Attached is a letter from Greg Ilkka, of Scott County, stating the pond would probably be in the future CSAH 21 alignment. Staff believes the issue of the proposed pond and CSAH 21 is a right-of-way acquisition issue between the County and the SMSC. The City should not have any additional costs for relocating the pond, as this pond does not serve any land in Shakopee other than the SMSC land. The city attorney agrees with the staffs conclusions on this issue. Issue No.5. Maintenance Responsibility of Proposed Ponds - It is anticipated that the SMSC would want to maintain these ponds on their land and not grant an easement to the City of Shakopee for pond maintenance. The question for Council, is this an acceptable policy and arrangement. Staff believes that the SMSC, who has their own Public Works Department, can adequately maintain these ponds and does not see the need for requiring easements on ponds in this area. However, it should be acknowledged by the SMSC that they will want to maintain the ponds inthis area. The main issues with the grading permit is the drainage calculations needed to comply with the 1999 Stormwater Management Plan or other provisions made to accommodate this flow into the Prior Lake outlet channel or other reductions in flow in the Blue Lake watershed. Another issue is the possible conflict with Scott County on the CSAH 21 alignment and possible relocation of the pond in the future. There are increased flows due to increased development in the watershed to downstream channels, such as the Prior Lake and Blue Lake Channels. There is no agreement with SMSC on negating those impacts to the downstream channels. The impact to the future CSAH 21 is an issue that Scott County would have in the future upon the construction of CSAH 21, and staff is identifying this issue for Council information and awareness. Staff has prepared a grading permit approval with conditions, which is attached to this memorandum. Council may wish to discuss the various issues and provide direction to staff for more information or provide additional conditions to the permit. ALTERNATIVES: 1. Approve a motion approving a grading permit for the SMSC, with conditions as outlined by staff. 2. Approve a motion approving a grading permit for the SMSC, with conditions as outlined by staff and as modified by the City Council. 3. Do not approve this grading permit at this time. 4. Table for additional information. RECOMMENDATION: The recommendation would be either to approve a permit with conditions, or table for additional information, or additional meetings with City staff/City representatives with the SMSC prior to issuing the permit. ACTION REQUESTED: Move to approve a motion to approve a grading permit for the Shakopee Mdewakanton Sioux Community, with conditions. ~ di /; , ~ ,~ , ruce Loney Public Works Director BUpmp ENGRlEMPLOYEEFOLDERlPPENNINGTON/COUNC1USMSC , CITY OF SHAKOPEE Memorandum TO: Bruce Loney, Public Works Director , FROM: Joe Swentek, Project Engineer M~ SUBJECT: Approval of Grading Permit for Shakopee Mdewakanton Sioux Community (East Village Subdivision) DATE: September 30, 2004 On August 10, 2004, the City of Shakopee received a grading permit application proposing to excavate a storm water storage and infiltration pond on a forty (40) acre site within the City. The storm water pond is necessary to accommodate the proposed East Village Subdivision and other adjacent subdivisions. As of September 30, 2004, the applicant has addressed several issues outlined in a letter from the City dated August 30, 2004. There still remain issues to be resolved, but the City, the Shakopee Mdewakanton Sioux Community, the Prior Lake - Spring LakeW atershed District and the County is working towards resolving them. On October 5,2004, the City Council may choose to approve this grading permit application. If this permit is approved, I suggest the following supplemental conditions be attached to the permit: . The applicant shall agree to hold the City of Shakopee harmless for any claims arising out of the City issuing the grading permit without approval of a preliminary plat or a final plat. . The applicant shall obtain all necessary Prior Lake - Spring Lake Watershed District permits and/or approvals. . The applicant shall meet the City's storm water management plan rate restriction of 0.1 cfs .peiacre or obtain approval from the Prior Lake - Spring Lake Watershed District for flow rates above the City's requirements or provide the City with information identifying areas where flow reduction in Mdewakanton Sioux Community property within the Blue Lake Watershed can be accomplished to meet the intent of the City's overall storm water management plan. . All work done within the City of Shakopee right-of-way shall require a right-of-way permit. Please contact the City engineering department for details. . The applicant shall provide a copy of the site's NPDES permit. . The applicant shall provide a copy of the Environmental Protection Agency's approval/registration of the proposed storm water infiltration system. . The applicant shall provide a wetland delineation report, a wetland replacement plan (if applicable) and a certificate of no loss/exemption. . The applicant shall submit a subsurface soil exploration report in order to verify' the hydraulic conductivity assumed in the infiltration system design. G,IEMPLOYEE FOLDERSVSwenteklPennits (BP _GP _RIV)IGrading,Pennits',sMSC\SMSC.Memo,Conditions (BAL),doc Page 1 of2 . The applicant shall contact the City of Shakopee engineering department twenty-four (24) hours in advance of all proposed land disturbing activity. . All erosion control items shall be furnished and installed by the applicant and accepted by the City of Shakopee prior to construction. The applicant shall contact the City of Shakopee engineering department to arrange an inspection. . All erosion control measures shall be routinely inspected by the applicant and replaced as necessary or as directed by the City of Shakopee. . McKenna Road shall be kept free of any offsite sediments tracking. The installation of a rock construction entrance shall be required. . The applicant shall maintain dust control operations onsite for the haul roads throughout the grading permit process until final completion. . The applicant shall place six (6) inches of topsoil over all land disturbed. Exposed soil shall be seeded and mulched in accordance with NPDES Phase II requirements. . The applicant shall address all outstanding engineering department issues. G,\EMPLOYEE FOLDERS\JSwentek\Perrnits (BP _GP _RW)\Grading,Perrnits\SMSC\SMSC.Memo,Conditions (BAL),doc Page2of2 .' } -..,. .' I " ,,- " -" :. ~'M. SPRING .'1' l.A.K..e NOT TO SCALE 't\BOLTON & MENK, INC. SHAKOPEE MDEWAKANTON SIOUX COMMUNI1Y Consulting Engineers &: Surveyors EAST VILLAGE SUBDIVISION . · """"'TO. MN 'AlRMONT. MN SlEE?( EYE. MN WW.tAR. MN SWppp LOCATION MAP BURNSVlUE. IAN CHASKA, IAN AMES, IA AUGUST, 2004 FIGURE A .. :::.(j;.r ''''''''J\J ''',,~j l 'J~.. C' . ~_ ~-''''',-_// f'''-.,} -"'....,.J" J , ~ /7".. /1L-."":;> ,./. ./ ____'- '- ~ " v .' .' 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MN CHASKA. MN AMES,IA AUGUST, 2004 FIGURE 0-2 H:\SMSC\C1234214\SWPPP\O_GRAOING.dwg 06-06-2004 1:51 pm ~i;~j},~:i;~ AI.. I '.~ f~%'WSB ,;1 IE'; ,. ' ';: \ . J~ - &.Associates, Inc. September 7, 2004 '. ." Mr. Joe Swentek City of Shakopee 129 Holmes Street S. . Shakopee,~ 55379 Re: East Village Subdivision Review of Grading and Storm Sewer System WSB Project No. 1281-75 Dear Mr. Swentek: WSB & Associates, Inc, has reviewed the following documents related to the above-mentioned proj ect: . Grading and Erosion.Control PIan, East Village Subdivision; received at WSB 08/13/04~ . Drainage Calculations for East Village Subdivision; dated 08/06/04. Please find the following comments related to this development: , 1. Block 8 and drainage area of Street E appear to discharge into Outlot C without erosion control atthe Outfall. Consideration should be given to connecting this storm sewer system to the storm sewer in Street D. This will eliminate a point discharge into the ravine and reduce future maintenance due to erosion. 2. The proposed development appears to discharge approximately 130 cfs in the laO-year, 24- hour storm event into the trunk conveyancewaylocatedin the central portion of the project. The water then drains east into the Prior Lake-SpringLakeoutlefchannel and into Dean Lake. This rate appears inconsistent with the City of. Shakopee storrllwater management plan which requires 0.1 cfs/ acre peak discharge for the approximately 500 acre area .. located upstream of Pond 1. This discharge rate should be reduced to approximately 50 cfs. o. 3. The emergency overflow (EOF) for Pond 2 appears to be below the peak elevation of the '~ pond as identified in hydrologic calculations for the 100-year event. 4. Incorporate additional dead pool storage volume in Pond A3P. 5. Infiltration area located in Outlot A north of Street B should be designed to treat stormwater before being infiltrated. Please incorporate manholes located at the connections of the 24- inch pe1;"forated pipe in the infiltration area to provide access for maintenance. 6. Pretreatment required for discharge on western portion of Street A located in Block 1 before discharge into the conveyanceway. 7. Provide driveway grades on all lots to ensure maximum 10% slope. ~ ~ I':' A F:\WPWIN'il28J-75\090304-js.doc ~ f\f' ...~: --- .... ~ ~_........ ....., "''':..._.._1:. r. '-:_....1 1"'__._1 ,.....___~.._:.&... r_...l_....... ~t Mr. Joe Swentek September 7, 2004 Page 2 8. Provide EOF direction, location and elevations fi:om all street low points. Also, provide elevation of street high points on plan sheets. 9. Provide additional grading ,on 10t side yards located on Blocks 4 and 5 to ensure appropriate rear yard drainage around building pad sites. 10. To ensure a more efficient review of storm sewer system, please incorporate total catchment areas, intensity calculations, total "c" value, and design flow rates on rational stormwater system design'spread sheet. Also, include depth to cover elevation for each structure. 11. Identify discharge capacity of storm system from node PI 0 to AI. 12. Verify maxi,mum street grade requirements at intersection of McKenna and Street A. 13. Verify depth of cover for CB 22-24 and CB 32-38. 14. Review storm sewer system design at STM 56. The discharge velocities delivered to the structure exceed ave~ocity of22 fps. Consider incorPorating drop structure on structure 57!QAecrease velocities before discharging water into structure 56. 15. Please provide stage /discharge calculations for stream crossingat Street A. If you have any questions or items' you wish to discuss, you can contact me at 763-287-7182. Sincerely, WSB & Associates, Inc ./ ,..,Uxa Todd Hubmer,P .E. Water Resources Engineer cc: Bruce Loney, City of Shakopee Phil Belfiori, WSB & Associates, Inc Jake Saulsbury, P.E., Bolton & Menk, Inc, lh '.- F: \WPWIMJ 28 J -751090304-js.doc E30L. ,-Of'J & I'v'1 E: f'.J I<. , I f'.JC. Consulting Engineers & Surveyors 2638 Shadow Lane, Suite 200 · Chaska, MN 55318-1172 Phone (952) 448-8838. FAX (952),448-8805 September 15,2004 City of Shakopee Attn: Bruce Loney 129 Holmes Street South Shakopee,1f.N 55379 RE: SMSC - East Village Subdivision Grading Permit Application Response Dear Mr. Loney: This letter is in response to the August 30th letter from your office containing conmlents for the above referenced project. Attached are revised plan sheets, plan sheets this letter refers to, existing and proposed pond area exhibits, fee land estimated quantities, snowmelt hydraulic analysis, and a geotechnical evaluation report. The comments and responses are as follows: Community Development / Plannin!! Department Comments Comment: A portion of Street A is on "fee" land within the City of Shakopee, but is not proposed as part of a subdivision of the "fee" land. Also, no future access to Street A is being provided to the City of Shaknpee. The applicant shall work with City staff to resolve these issues. Response: Proposed Street A win be a private road constructed in accordance with City , standards. It will be maintainer; in perpetuity by the SMSC Public Works Dept. Tile'" ,0 adjacent property to the east is owned by the SMSC. There is no need for future City of Shakopee access to Street A. En2ineerin2 Department Comments Comment: The applicant shall show the proposed CSAH 21 alignment on the plan sheets and coordinate impacts on the Shakopee Public Utility Commission's future substation location with the Commission. Response: The application is for a grading permit, not approval of a plat or any form of subdivision or lot split. The parcel will remain undivided as a result of the grading. The proposed 1 MANKATO, MN . FAJRMONT, MN · SLEEPY EYE, MN · BURNSVILLE, MN · WILLMAR, MN · CHASKA, MN · AMES, IA www.bolton-menk.com An Equal Opportunity Emp/o)'er grading does not preclude the development of a CSAH 21 corridor on the subject parcel at a future date should the final agreed upon alignment be located on the subject parcel. The contemplated future substation site is remote to the proposed grading operation. There is no direct or indirect legal or tec1micalnexus between the potential substation and the proposed grading. Comment: The applicant shall work with the Shakopee Public Utility Commission to determine the need for future water service from the Commission, if any. Response: Not Applicable Comment: Since the City has designated McKenna Road as a State Aid route, its future design will be to State Aid standards. Therefore, the applicant shall provide adequate access spacing to comply with the City's adopted Transportation plan. ClUTently, the proposed frontage road access points onto McKenna Road do not meet the City's spacing requirements. It should also be noted future street widths and vertical profiles of McKenna Road will need to be accommodated. StaffwQuld suggest a meeting with the applicant to discuss access locations; The applicant shall obtain right-of-way permits for all proposed work within City right-of-way prior to construction. This work includes, but maynotbe limited to, all approved accesses onto McKenna Road, Watermain connections, storm sewer connections, water service connections and sanitary service connections. It should be also noted no curb and gutter shall be allowed in City right-of- way. Response: This issue is also irrelevant to the grading permit. However, the design provides significant public safety benefits. It minimizes access points on McKenna Road. The frontage road design is based on an upgrade of McKenna Road to Minnesota state aid standards. This is a right-of-wayissue and will be discussed in further detail when that pern1it applicationjs submitte_d. Comment: The applicant shall work with City staff to detern1ine the need for future sanitary sewer service from the City of Shakopee, if any. Response: Not Applicable Comment: The applicant shall coordinate improvements to the Blue Lake Channel with the City of Shakopee in order to verify it does not adversely affect the channel's upstream! downstream design. Response: Attached are existing and proposed pond area exhibits showing pre and post grading flows from the area. The project results in a net decrease in flow, thus it will not 2 negatively impact channel design. In addition, a separate Blue Lake channel corridor is being preserved that is capable of conveying 900 cfs without adversely affecting the proposed East Village units. Comment: The applicant shall work with City staffto resolve issues relating to contributions towards improvements to the Prior Lake outlet channel. Response: This issue is not relevant to the grading pennit. ConU11ent: Provide a wetland delineation repOli, a wetland replacement plan (if applicable) and a celiificate of no loss/exemption. Response: The SMSC has conducted a wetland delineation and will forward to the City to administer WCA deternlination / exemption in the grading pernlit area. Comment: Incorporate the following infoffilation into the submitted Pond/Infiltration Area Grading Sheet and the 'Grading & Erosion Control Plan: . a) ,Provide an overall grading & erosion control,plan sheet showing the entire East Village Subdivision, the proposed storm water storage/infiltration ponds and the proposed Blue Lake Channel improvements. . b) Show existing contours to one hundred (100) feet offsite. . c) Show the proposed alignment of future CSAH 21 (right-of-way and road alignment) . d) Denote the total area disturbed on-the grading & erosion control plan. 0 e) The storm water storage/infiltration pond shall provide a top of berm elevation and emergency overflow elevation a minimum of one (1) foot higher than the approved high water level. . f)ProvideadetaiLsheet showingall.outlet structure details. . g) Provide a detail sheet showing all applicable erosion control details as per the most current edition ofthe City of Shakopee's General Specifications and Standard Detail Plates for Street and Utility Construction. Response: a) The grading and erosion control in the subdivision construction area are regulated by SMSC and federal law. b) See sheet 2.01A c) Please refer to response on page 1 of this letter. d) See sheet 2.01A. The total area for review and calculation purposes is limited to the grading permit area. e) See sheet 2.05 f) See sheet 1.05 g) See sheets 1.02 to 1.06 - The details applicable to the portion of the project located on fee land are in compliance with City of Shakopee's General 3 Specifications and Standard Detail Plates for Street and Utility Construction, March 2004, except for the following: Catch basin casting R-3067 is specified rather than R-3246. Sunnountable curb is specified, but the dimensions are slightly different. The bituminous specified is Mn/DOT 2331 rather than Mn/DOT 2350. Finally, a thicker street and trail section are specified than required by the City of Shakopee. By keeping these items in compliance with the SMSC's standards the small portion of Street A located on fee land will be consistent with the remaining streets of the subdivision located on tmst land. Comment: Provide a detailed cost breakdown for the installation and maintenance of all erosion control measures, the stripping oftopsoil, the storm water storage/infiltration pond excavation, the required grading, the required compaction efforts, the re-spreading of topsoil and the establishment of turf. \ Response: Attached is a breakdown of the quantities of the requested items on the fee land subject to the pem1it application. As per previous instructions from City staff, a copy of the selected contractor's bid tab to accurately calculate a cost of these items will be forwarded when available. Please note that stripping of topsoil, pond excavation, and the required grading are all included in the item - COMMON EXCAVATION - LUMP; SUM. Please also note that the spreading of topsoil is included in the turf restoration -. items. Comment: Provide a copy of the site's NPDES permit. Res\Jonse: The SMSC will provide a copy ofthe site's NPDES permit once a contractor has been selected and the permit is applied for. The SWPPP is included in the contract specification and will be forwarded with the contractor's bid. - ,.. Comment: Provide a copy of the Environmental Protection Agency approval/registration of the proposed stann water infiltration system. Response: Not applicable to the fee land infiltration system. Comment: Provide a hydraulic analysis of the 100-year, IO-day snowmelt event in the drainage calculations. Response: Attached Comment: The applicant shall submit a subsurface soil exploration report in order to verify the hydraulic conductivity assumed in the infiltration system design. 4 Response: Attached Comment: The City's storm water consultant is currently reviewing the drainage calculations. Once tI1.e review is c011;1plete, their comments will be forwarded to your attention. Response: Comments will be addressed when available. Natural Resources Comments Comment: The proposed forty (40) acre site is primarily open farmland. However, there appears to be some woodland areas that may be impacted by the proposed grading. The City's woodland management ordinance, Section 11.60, Subdivision 9 of the Shakopee City Code, states, "Any applicant who desires to remove any tree on any parcel of land containing a woodland must submit a woodland management plan to the City and must demonstrate there are no feasible or prudent alternatives to removing any tree." In order to comply with the ordinance, youlTIustsJ.lblTIit a woodland management plan to the City and demonstrate there are no feasible or prudent alternatives to removing any tree. The woodland management plan must consist of a surveyor scaled drawing showing the topography, boundaries, woodlands, fence, wetlands and individual trees or vegetation with an overlay of the proposed improvements including, but not limited to, streets, building pads, driveways, utilities, structures and facilities. The drawing shall clearly illustrate the area of trees and woodlands.proposed for removal and the manner by which the applicant intends to replace the removed trees. Finally, prior to issuing the grading pern1it, the City Will neecl to conducta site inspection to ensure the required tree protection fence is-instaJledand you have complied with the Woodland Management Regulations. No 2radingor fill activities may occur on the site until after this inspection is complete. In addition to the woodlands, this portion of the City is a specific concern and should be a discussion item with the Environmental Advisory Committee as it relates to the blue- Lake watershed area and the Prior Lake - Spring Lake outlet channel. Your proposed grading will be of interest to them. City staff will bring the grading permit application, woodland management plan and impacts to the Blue Lake watershedIPrior Lake outlet channel to the Environmental Advisory Committee and to the City Council for their comments, recommendations and approval. The Environmental Advisory Committee's next meeting is scheduled for Wednesday, September 8th. In order to make this agenda, you wiIlneed to provide Mark Themig with the woodland management plan by Tuesday, August 31. Please contact Mr. 5 Themig to discuss what information you will need to provide the Environmental Advisory Committee. Response: In the original submittal we showed tree removals along the south edge of the proposed ponding on the fee land. We have conducted a tree inventory il1dicating that 31 significant trees were planned to be removed. We have modified the alignment of the trail and the proposed grading to preserve 19 of these trees. The landscape plan shows 150 new trees to be planted. This revised plan was discussed with the Environmental Advisory Conm1ittee. The Committee approved our plan pending implementation of and compliance with the Woodland Management Plan that we presented and pending the resolution of these items discussed in this letter with City staff. Please contact us to discuss this project and/or schedule a meeting once you have had a chance to review these submittals and plan revisions. Respectfully Submitted, BOLTON & MENK, INC. .JG;;yf.~~ Kreg 1. Schmidt ._-- Cc: Bill Rudnicki, SMSC Stan Ellison, SMSC Mark McNeill, City Administrator Michael-Leek, Community Development Director Mark Themig, Park and Recreation Director Joe Swentek, City of Shako pee Lezlie V ennillion,Scott .County qregIlkka,_Scott fClUnty 6 ~ E30L.TOI'J &. 1'/1 E: I'J I<. , I~C... Consulting Engineers & Surveyors 2638 Shadow Lane, Suite 200 · Chaska, MN 55318-1172 ,. Phone (952) 448-8838. FAX (952) 448-8805 September 27, 2004 City of Shakopee Attn: Joe S\ventek 129 Holmes Street South Shakopee,1fN 55379 RE: East Village Subdivision Drainage Review Comments Dear Mr. Swentek: The drainage comments submitted by WSB for the above-referenced project have been received. Attached are the revised plan sheets as a result of these conunents, additional information on the stream crossing at Street A, and a copy of the origillalletter from WSR Please see the following responses to each ofthe c01Tesponding questions: 1. This portion of the storn1 sewer is located on trust land and not applicable to the pem1it. 2. . The proposed 90-acre development receives stonnwater lUnofffi.-omapproximately 400 acres offsite to the southwest. The existing-conditions model shows an outflow of 136.4 cfs discharging fro111 the 48" culvert under McKenna Road. An additional 9 cfs would be allowed given the maximum release rate of 0.1 cfs per developed acre yielding a total allowable discharge of 145.4 cfs from the proposed development. The proposed improvements decrease the 1 GO-year discharge to 128.8cfs. 3. The emergency overflow for Pond 2 has been increased 0.2'. 4. The required NURP dead pool volume for the contributing area is approximately 0.23 AF; the proposed pond A3P provides approximately 0.38 AF. 5. This portion of the storm sewer is located on trust land and not applicable to the grading pennit. The system will be constructed in accordance with the Environmental Protection Agency Permit. 6. The pOl1ion of Str-eet A not being treated amounts to about 300 linear-feet of street and 2.5 lots, which amounts to approximately 0.6 acres of impervious area. Due to elevation limitations it is not possible to convey the runoff from this area to Pond A2P. However, the mentioned pond is proposed to treat an additional 7.9 acres of undisturbed farmland from the 11011h, which is currently discharged untreated into the channel. It is our position that from a water quality standpoint the net effect is an improvement in water quality gained from the treatment of the nutrient-laden farm "J: 11lnOIl. F'\,S.\1SC...C12342 j 4\C0;7es\swentek_ 092704(hydro).doc !,,'JAf';r<AJO, fv1f,j . F,~iRfl!')NT, lv'iN . SLEEPY FilE, l'liN . BURNSVILLE, [ViI\) . Vv!Li...f\t1AR r-li!~ . CH,~SKA fJ:r'~ . AlVES, IA wvry~J .boltorl'"menk.com ,.t,,; E~'J:;j .C)p;;:;rt:Jidt.v =(0pi;; vet . 7. This portion of the grading is located on trust land and not applicable to the permit. 8. Emergency overflow designations have been noted on grading sheet and street plan sheet for the portion of Street A in fee land. Street high points are cunently noted in the profile view of the street plan sheets. 9. This p01iion of the grading is located on trust land and not applicable to the permit. 10. Individual catchment area delineations, rational "C" values and design flows were provided for review. The tables provided are standard output tables from the software used in the analysis, future projects will have combined table information for effiCiency of review. 11. Pipe PlO flows from Node 10 to Node AI0. The full capacity of the pipe is 8.59 cfs andthe 10-year flowrate is 7.03 cfs. 12. The proposed grade at the nOlih intersection of McKenna Road and Street A is at approximately 1 %. The proposed grade at the south intersection of McKenna Road and Street A is 2%. The preliminary design of the upgrade to McKenna Road proposes a cut of less than 1 foot at the south intersection resulting in a minimal grade change from the proposed. The preliminary design of the upgrade to McKenna Road results in no vertical change t6the n01ih intersection of McKenna Road. 13. Depth of cover adequate for all ~t~uctures. A few feet of Class V Rep will be in the Class 5 base, but as it is only about 1" into the Class 5 the desire to maintain matching 0.8' points govemed the inveli elevations specified. 14. This portion ofthe stonll sewer is located on trust land and not applicable to the penlli t. 15. The 1 DO-year flowrate wasdeterIllil1ed.in a separate model for the channel since the channel receives additional floW frOll1the southwest, west and northwest. The calculated flowrate was then inputintothe HEC-RAS software developed by the Army Corps of Engineers. The output table showing stage information at each cross section is attached. Respectfully Submitted, BOLr;Or & M~NK, ~c. 1;_ f,\ i! /, \ ji lJ' ~ Ii '7 - l/' ikQ ~4--- ~ JJ ii.X) "UVl)----- ::/'~" " , . /,/ Jake'S. Saulsbury ; / I 1/ Cc: Bill Rudnicki, SMSC BlUce Loney, City of Shakopee Todd Hubmer, \VSB & Associates, lnc F:.5MSCC i 234214\Corres\swemek _ 092704(hydroj.doc . GENFRAI NOTES' -.- " I :; 11ia..~%11~ ~~~ ~~Af1~~& o...~ER nEldS -~~-------------- " "- : J 1 lHE R[COt,(MENOAl1ONS OF' BRAUN IN1ERlEC CORPORAnON '. -' -' J ': REPORT NO. BL-04-o-f.111 DAlEO ..uN[ 15.. 2OCK. -- ------ " /"./ I :' : 2. [ROSCH CON1Ra. SHAll. BE IN PlACE ~OR 'TO 1HE' START '. -- -- ------, ,/ ". - -- ./0/ / ! I ~1flED"'%~i~~ ~~ONST~~AU BE /' - \I / ! f f { ~~~ok~~~~E:=1jff ~~..cm AS RE:CUIRal. 807 / SMSC i t, '3. ALl. STCRII S!:\\!:R IIIlElS.i\lAAH!US. CULVERT OIlET PlPE:S, !:Te.. " FEE LAN D ' , SliA1.l. BE: E:NClRClfl) Vol1H OIm PROlECl1ON SILT FENa: UNllL / \\ \ \ PAVEJ,lENT 00 SOD IS IN PLACE. " " .. I \~. All. \lIS'I\lRaED 1JlE.l.S SHAll. BE: SEEIl!:O AND IIULCHfJ) OR ~"" \'1. \ SOOOED "MlHIN .2 WfEKS CR COUPLE1lON OF GRA04NG OPERAl1ONs' ,', \ \ ',5. AU. DISTURBED SlOPES E'Xca:otNC 4:t SHAll. BE SODDED AND \ " STAKED OR SEEDED AND STABlU2ED 'MlH WOOD FlBER BlANKET.s '\ ' , '}' AS PER lIN/DOT 3885.. \ "'" . SFOUENCING NOTFS" '\ .---_n____._ ", INSTAll CONSTRUC11ON D<IRAN<:] 8I0R0US It. SILT '- "", 870 /..--- '-'..' '1. ;r~I~~~oo~~!f .... '. ~ .... t FENCE: AND 8lOROUS - S!:E; PIJ.N). , \ ,/ ''<:9''b_ 80;;" - .--.-- .,'.. CONST. CIWINEI. NlD JN$TAl!. SllT fENCE ok BIOROUS. , , ....._ _---_ 2. ROUGH GRADE PONDS & INFlllRAnoN }P.F).S ).NO , '" - _ _ - - -- - _ . CONSTRtJeT. 0Ull.ET STRUCruRES TO fUNCl10N JS , --.... - ..... 3. lE)ApOFWrf SEnIUOO 8A.SlNS DUR1NG CONSTRUCllON. , ---- · 'I r1Mllb~~~POll~~~. , ------------........-) .. L1llAllON N<EA \Iall1o UNTIl END OF PROJ!:r:fT)~ _----.-.---_:.._. CONS1RUCT ununES N>lD INSTAl!. OIlEr PRO'lECl1ON. . -'- - 4. INSTAll. Palw.NENT EROS1ON CONTROL IlEASURtS I (IE., 1llANKElS, 1IA1S, SEED. loIUlCH ok 500). : 5. NTER All STABluzAl1DN IlEASURES IN ~ OCJ,VA'IE PONDS AND INFlLTRAllO/I flllRAl10N AR!:AS TO FINAl. . 6. GRADE AND INSTAll UN~ N>I~(!jl SOIL Mrou. AS DIRECTED IN PLANS ,.u.ID SPEC ;nONS.. INSTAll. \ ---....-------- ", S1I.T FENCE; AROUND OIFll'lRA7lONfAl11lAl1ON AR!:AS. t J ... , .'!i .................... ----------i37e-_ ", EROSION CONTROL NOTES*; :.":'1: ---- SILT FENCE: INSTAlliD AlONG CONSTNotl: CONroURS AND -------- --~<9re... , HOOKED UPSLOPE ('SIIILE" PA'lTERN) TO RETAIN WAlER. , 0 . 1. 0 ------'. ---- --, ----------.-------.'1 , ---- -....----------.- INSTAl!. SILT !'VIe!: AROUND All. STOCK PlLES. > + , 0> , , ~ .... 2. SITE ACCESS SIWl. OCCUR OllL.Y AT ROCK CONSTRUCllOI' , , .... ENrRANCE. SEllIMOO '!RACKED ONTO ~ STREE1S \OUST . , J. BE ClEANED VIA smm SCRAPING AND S\\!EPING AT THE END . -----...., t ........, , , Of' EACH CON51RUCllON p,o,y. ; - IN$tt.u.. SILT FENCE AFTER ROUGH '------...... EROSION CONTROl. U:~E:s: stW.1. BE 1NSPE:Cffi) AND POND G~ING COMPLETE. .... , o B-1 WJNTAlNED ON A WEEK!.Y B>.SlS ANf) WlIMIN 24 HOURS OF AN'( , 4. IlAINFAl!. E'IENT lARGER 1HAN 1/2" UNTll PROJECT CDMPu:noN. \ " (' ......_-..... -sa SWPPP FOR AIlDI110NAl EROSION " SEDI\OOO CONlROL I if , INfORIM11ON. ----.....;' I I~ -. / .... 0 I _n ,. \_" .....-------- INSTAlJ. BIOROLL AND HD SILT - . +- I .........' FENCE PRIOR TO CONSTRUCTION. ~ _J ,-- .---...-----------..,.'---' F LEGEND SOIL BORING LOCATION -, ..,...-..- 0 INLET PROTECTION ~ I ..- C'ol <:1 // r ~ BIOROLL DITCH CHECK q 'I' , ,/ ~ ........ PREASSEMBLED SILT FENCE C'ol I:J I , , ..J ~'w,1 / I'" . . III HEAVY DUTY SILT FENCE .".--, .. wCJ) .. wr r--n.._.nnn'j EROSION CONTROL wO::>1 . / .... .. .......-.......... .... " ... ,/ )~ 3 ~!,;gf~~{~~*;~;; BLANKET (CAT 2) II-. ~ ( " " ... (I) (/) I I'i --, " ... / ... // ~ b tt~~~~1 VMAX TURF REINFORCEMENT W::l I lii-,~ " .... .... W::l In { .... / . '~r MAT (C350) (1):15 "'~ t: \ Xi ,-_/ _,,/ ,/ a ROCK CONSTRUCTION I -' ,/ I '? ~ ENTRANCE (1n_3" GRAVEL) t, ,,- I " I / / J __ --8Ee-- EXISTING CONTOUR " " 06-4 I (. M..- -830- PROPOSED CONTOUR " , " / --- , I , I .' , I I , , I , I . .- I '-...~- .- I , I \-...----..- , I " INSTAlJ. SILT FENCE AFTER/ROUGI:L ----------~------_/ POND GRADING COMPugE .--.---,,' -' , " .' ...------ ........ -,- --.................--.. ..---"" g ....... ~ '" ;; .-------..-- ~ 810 . _ _ _ -..e-1-O- " " -- 3 I '. .-.._!?Q~l.- - _/ N I HE?Eih' CE.:mF'Y TIiIIT 'n11S PlAN. S?ECIF'.cATIO~~. OR .~~l)OiU O!:Sll>I';;P HAKOPEE MDEWAKANTON SIOUX COMMUNI WAS PRE.:IAA~ :rr ME' OR UUDER Vf !)IRe:Ci SU?~~ON A.>.i.O DLG/DMP 1\ E3Ol-."T"ON e- Iv1EN K. ONe SHEET ~ 50 0 50 TI-'Ai I ;.J.J ).. DULY wco.'Sm PROf::SSlONA:.. ENClN~R utlCER N THt 1Z~ O~ iHt 0: 1-~ PAAlI'S .01 B '-' EFa~fBJZ J CONSULTING ENGINEERS & SURVEYORS EAST VILLA.GE SUBDIVISION 2004 '-' KREG ~'''DT DDS Of '" SCALE i"t.!:..l ""''''''' UA.l.,IK),TO, MN F'AlRlJCNT. L.4N Sl...!r?y nE:. ).IN 'Ml..lJ.4AR. MN in 9:E~ MQ. 24307 D"1t g 12- 0 DLG au~'\m.-t. ~N OiASX^- J.I~t }J.lES, IA POND GRADING & EROSION CONTROL PLAN 2.051 . f INFlURATIONIFlLTRA110N AREA NOTES: Itl '\.. -L J_J' I \ I \ . F&ll: ~iC ---- -."...~-~- - - . /. ~<'l!YY! IL.~---. If ._.___.-... LEGEND 1. FINAL EXCAVATlON/GRADING OF BASIN FLOOR SHAll BE I 828--- ~Ef IP, I~ .'PL,ITCSHHESEE!'CTI1 OO~ 3( Iii D C~~'r>dAH8dK. TY'P ___ ~ - Y..2/::. /. /_.-._-.. DElAYED UNTIL ALL DISTURBED AREAS ARE SEEDED AND - , \ T "l \ . \,,', . 4 ~I/ ~""P, f'Y - ,~ ~ - - .>7". f ~ . 1I111lllm ALL SILT FENCE AND INLET PROTECTION MEASURES ARE I) I I I I '-./ ", "/ ,,-; I t..- .......'/"-~. --- .....<-- . .,/ ! _.~. .~ .__..----..---.-- ._ ~ ..' POND LINER IN PLACE. : I I I ,._1. ;!: -- ~ ./........- -....... .' _ .,-..'- .-_-- ..."""'... - I : I I -1-._ '--' ./ - ,r.J. ~ . "'~ I.r-' ___--- _ 2. FINAL EXCAVA1l0N SHALL BE PERFORMED WITH : - '. ___ - _ -.../~ I _ __~ . ...........:.... .,z: '/ .-.-.-- _---- ~rj.t{j...jJ WETLAND SEED UGHT-WElGHT EQUIPMENT TO PREVENT COMPACTION. _J....-..\ \ I I I I .~. FIr J, V,," ~~- '. .._~..:::.~::~~~m~'~~' - 7.~--..- __-----___-.-'-- ~ ~ MnDOT MIX 258 _' .- , , I / I ~ ~~ . "..u.."" ~.' n'~.~. ::/ ___ __-- ._.- -- .- 3. PRIOR TO PLACEMENT OF INFlLTRATION SOil MEDIA, I I \ '1 I ".. I. "" ..'::.'::;':'''''n. . .~~':" ., /. -- __./'- _-..., ..' BOTIOM SHALL BE DISCEO TO A DEPiH OF 12" TO "'. "" I . ___ . - ,'r.;";";'3-" ... '.. ':7-'~>: -.::;;r.-~ / /_.-- ....-' ...<-.., PROVIDE INCREASED PERMEASIUTY TO THE SURFACE. I ~~;A D ~;I~' t !rYPE 7824 :/.: ~._'i_.. \.&:::"~:.?~/---. ----- 0 ..:::: "'::;:';-w,ii,,"'::::u. n_.. ..' .:~ ~ /,/ ....----.....-..-.::-;:::.-:;::. ; ~ J "",, ..1-------<.: -- ~_C-- - ~ ..~ ~ ~ . :.:.".;!.";..:!:i..n....:....:...n. ~~.-- _ .:' ........--;:/...--:.-.. ""1-"-' .', "! (4 0'1/ ~ IRI C,-lI-Y ---..- ~9~ "",tori> ..., ..". ':!~'.::.i'l."""n...nn. '~~.. F k 1. ... _.' ~__ _' .' ..- \' ......--..-.. --.. \~ .......,'\..L ~ .' '='\~!.~ .;._-!"", - 9.~;'::V~.'II. ~:'fI:"';'II:.:"i;;.~r"....." ~ - .; ~ ........6; ..m: ":At: "'":."1 "Gio€ .."'.... I . i/./'j\\ \L.......--=-'-...--t.--..JIL----- - .;-...-1 I L ~-- -, L826 __...#!':.~ ----..-<:~- .---. ..~nn "i.;.''''-' ~~~ ..- _ .___..- /..- __Y<..5E..N/ Jtf&i \8 '// \ \\ ,--- .. /c. .' . . ~"'::J --- _' __,' . . -<<?-," n'.:.; :::. .".:.., ,_~, 1\-:::'::;;=-~ ___....- ...... / / ..., ..-.. ...' ...., __-~;:; I -:... -- .81-3 ,. ..' ----.. L ~ - '. -.----- .'- -- ~ ~ ,;.;.;::.':..., n .-.~ 'lr.. - .......-::;.::s:,o___ ~/ ..- _..-.--- .... ~-- /' /' /., / ---... ,/ lkf~l*Z " . .~ :'" \.~ .lS1 . ". .. . .r .' -... -...... .. ... ~l... ., 9 :.V~Y:.. " ::ir"': ~~ ,. ,. ..:..... ..........~..........._..:.. "".... ,. ...../.. ...... ........... "".... ../......::..........: n N 9 0 -- \ ,II , 1-"':: 810 _ _ -. - - ~ --'. '''''. ."'"...... ,.-.- _ .~. ..' Sa: iYP~ .DffCH'stP'TON. ___ ~. - . ~/ 0 I : It \) It ..... . __..... "........ ~'Q':+1 .... it!"". ~~ .. ~_.... .." ......_ ... /' .. .. ........ .... " ".... PI ~~.7.,<(-: l- "f--', 1-0' WIDE EOf',..!E}.-15''R(:P APRON ;E' X ~~... - ~......-~ ~-. ~ ~--.. j --- -- _84 .Q.gAU.;.Sl3Ef;r.."!.~..// //-- I --= ..---....---- I ~ ! ; \\ \ .------- .,,@...l?t2;~4?~CY RlflRAP, CL4 7 .- " I _ _ . , ~ -" __.---.---.-.,-. ~. .. '::.. ..~0~ _' :-- -- .:;;d:::::.:::::~~:~-----------::.:<~/->::::::.:::=;~~:_;::::::~-:::::-::::.:::>~~~<;;.; .., I " .- , FABRIC. 'TYPE 4 --- -- ~-.!... ~ -- :::i.:' . :g;~~~ ~ ~......-- ....-.::"':.. ----- -,------.------..AlEl'IERAI .1(="- .' -- ,"...' / /~., , .. . . =..-.--- . <( i ! BERM 0 61~-80 n : 17809.30 \-..: ~ -........ ~ ~. ~...... - .>, ~ ~,y:~: : _:------,- EX v...lliv<.....,;~:;;;;;:.:A":~~~ ...::>:>;--; , co _' __..~RAP. CL 4z z : \ ,..... .-, , , 8'10811 . " " ..:~',), ~ . ~~ __..., ?__.....~ ~.__.:.,.._. Rw.'lI~ho'1HE SH.ll.L.se'rN.'ACeqll)AIiC!:1o-lIr':~"':::---/' . .- ~ ,...,....." " .. -. . ~. ..-0 :eRkTEU~"--.. ---- '-'--'lm: I!!:co.:i",alo S-o(lf'BllWN'~'lfJl'I"<~o'r- .--- ~.. I~ CO . ABRIC, Il'Fe 4 I ~ l \ I'-- 812 "'" \ ". j ";"\ r81~./ . '_ ___ :~..-=.~~- ,."'='=_'~~ ~ ~~<.::>.:!.-:..-:-.::::::.-.:~..-,..~!~~:.et:;~n:~~1!Jl.;9"'",~~::,::::::::~;;:::=-</ kII PO 0 . IO::l \ I -? \ \ 4SLE''-:lS"RCf) I' .' ..., ~ ::::-~::;,.....---~ -fN";:""'~~~"" ___....-.------pso., '...... ......'i. .at~oo-~mc.l-&fw.-SE'ilrWCE.iB~~-s7AAT.--- Ir~ S DETAIL S ~.-'- :2i: Cl t{, 812.00 ~.4470 ~/ . -,.. _...." "," . . --.' ", ____.' ._------_____:._.".~...'l:.::':>::::.::......-.-...:::...-...',_.......~~~~c;n~~Qt(iOft~~~,\l.1)I~.-----.- , lJ ' ( __~::~:::1-=) I: i (511 (1./ -,ro '7 I 809.S~ .., 'Olf6~~ _........~..~.:.. ..,.-' - ' - ,- . - ..~--.-:::..---.-::::-;--::::.-.::....:....- --.-.. ...... "'. --/ ERCsl....etI>-OOX'.'T~~~.i~ J.S'R"J:uiReo. ___-.-- 11 . . ---- ....---.:- i i Y j L l /' J /~. .:.:.:.:.:~~ ~_ __._,' - _..." _ ~..-:<:.- -' ..., ---- ..--------.- .-.-' -...---.-..,. ", ". .... __..'R.........",.~=tII_T .BE c.oa;r1t/.... ..., _ ~ F&I. : : a:: . ./ -- .....~-;:x-~~ ~,~ ......" ..- __.__-- _.__._-..-.. 3. loll. STORY Sf:\\ER 1NU:lS/IoIANHOLES, CUl\QT INLET PI1'Es. Ere.. fJ. \ ____ 10 CY RIP RAP, CL4 I i -!....... /' . .' .. 81 81 1 ~ ._' .-' ~_ _.: ,--- _---;:::-:.::::.---::-:::::-.:...:-::::. SHAll BE ENClRCUD "'lH INlET PRO'lfC'l1ON SlT FENa: UN'lll fr wi FABRIC. 1YPE ~ ,I i :.::-, I z.,? LF 27 '1.t J __ __ ...., -' _____/--- ...<.---..,..-.._-..----.- __..-., P"'\'E1oIENT OR SOO IS IN Pl.ACE. '\ ,-..,. ~:: W NEENAH 53 / I l-.. .........~,.'./ __-...... _....- .._....... .......... ............ __ ... AU.. DISTURBED AREAS SHAlL BE sEEDED AND "'ULCHED OR ,~ -', '. "/1 5", 5HT 1.05 _,_ +1,. \~il If .C. ~/ J, \ ~ _/ / _/;>~ -._,_w~u_~._ -. <- __-&1f)- , . . ,.- - ...,::. . . S. loll. D1S'lllRSED SlOPES EJ(CEEIllN~ 4:' SHAlL BE SOOOED ANO I 810 - . STAKED OR SEEDED IoNO STABIUZED \\I'tII VIOOO FIBER BUNKElS -. -- BQa;.". AS PfJl "'N/DOT 3Il85. 10' WlOE ffiF- ~~ . 81250 ~. v ) - @ 812.20 / . 807~. ) BOB .,. . ' :----:;: _ ./, 810 /-- ,: F&I: 811____- :::::::-- :' \ <. 2EA 42"RCP APRON I ~--.._.___.__' , (JQ7_ \..-/1 ~., \ 43 CY RIPRAP,CL I": l ./ ~ ~O I \. WI FABRIC, 1YPE rv 40' CHAN a BOTTOM A' I "" ' ~-~11' ----- ---.;: \ . 620 ID.:"ao7.3 --. 820 \-.-...-' ; \,., ", 8'0 _ ___ .---. a' ITUMINOUS [L~ \ ,_ """'~'''''' -,."m_-;->-=--_.--=- 1...__. 811 ..--...-.- . "" "'c9. eo;.-.. -.,--./ . :!.~ il~l .,\:l/<!:Il:'...~:n. ~'... >: . ,~. 1 >ill';;'. ...~ ~= '.....' ~ 7iS! t - ~f(.~~ii&--~J.i'.~i,""1\~i";~.;1j[-I!~~~~~~ ...:..-.. ...-.._ / '--__ 10 SHElF 0 10:1- \ \.. ~1~~~~~&~~~~~~~.Jft~-;i~~~~~~~ . ...."v:.:.:.:.:..:..:lP:":":":""v ....\ ../"/ ',---.._ It ,.-' 810 --. -....- 810 . ~~~~~gl1l,;'~~1JI~~';:"''':iV~W,ll'''',1'~~''('J;'\tWID8''E0Fm",--~li.l! .10&;1'>............. , .' ::-... "_ ..._ 70lf-~2 .~.~ Y';' "-- \ __ _ l:':\#, :-:~:;;;~l:.~~2'~i'~R'. _ "'~~1"~~~~~~-J?~~~~r~-:-+if' :j~,."""'-f...;."':?:-s:.~.1;}f,"ir~ .,""on ..~..v..:v..'! ... ".""vv.. 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C9. --- : ./ I ~ ~k\1\t.~~~~~1~~~'~11 .:~;:~~:;~~~:.:\~t~il'Jt.lir~~:~:~:~:~:~:~:~:~:~:~:~::::~~~~~~~:~~~~~:~:~:~::{'~'~i:' ~Il'il'~~)~~)~;:~:::.. -. . - . 4l>'<ii\'.'f'13.-,if"""" --:i1i~t.,-"',(.->"~""'~"'-"j- ...:::~ ," , ,~,-'''1'''~ft~,.,,~'!), ~....................~~c ,~,.,\.., .-<e.""'-""-- -,""""i~" ';;1~3 ;~.... i ;;; 1,' i;;~~.ni""j'."-~~.;;;r.~".;,;!,,-,,~'-'*',,~r{~~"'.;'''',,J IIJJB:'.,I.."SOS./j;... " J>,~~ ,,-""~hitt\.!; ;~;C\"~~'":fu,'--,~~~ .?,~:...mm.......::j~.~.!t....._...._.................. 1. .; I I I 8 i ~ : f~.'f:~~7. H/~~~~~~~~~i~i~~~H;_~;~~iii~l~:~;:::i::::.,;:. ~ ... .....m..*;:~~~~:;;.... ~ '/ 820 ' II.J I I I' 1820 I '-< '''.ji1!;)C'-.,.'l11'1;t~'.\;.i.'!'3.;"'-.':..:j;r'.'.4....'',.- .. ..... ...... ",W~:!J;l'~r:g>g"",,,,,,'C",.,~j.......... n . - --- -0 . y -___.. ---...;::' ~ /1- K ;-8' BITUMINOUS TRAIL I /41 ,~~~~~~~~-~i~~tl~~~~';' .~9:9:~:":9:..:..:..:9:..:.:..:7:.." ~~r,.'W;*.t' . ~~~ ~~~::-~~:\P:..:9:.:..:.:9:.:":..:.,:.,.." ,........... ............~.........._=-- ~ ~~~~~~~ ~ 'j'J ~:1 l ,t !lfi'J1:~~.wt"'."'."''l\\~''''&')~' I ................ .,;;,.':-",,)!,,-"'.,..-;""'~7............ --- ..' C - '" ~~., r INFlL1RA1l0NiAREA.Co I I '" 1'-;."'l'<8Mf:~'W!o'~1)~"\'f,ri!'Q". ....:::..:..:..::..::::::... -..", - ......::.,;'......:......::... ... ........1"" --- ~-' '- '//" 810 C SOSA- I '0' ":r--1' 810 -..... .i'i!Jr~~iDE''K8''"J1\'lI\':i1f \ : .....n.....n.;;i'-~:<o.~...~j'.............~............. .... .A:::_"- - '_..;Y-. J..- ____ .........., " .~ ~,":~~lt~.,l~J~~i&~jf' \ I. ".O:.,:..:..;..:.:..:.:..:..:.:.,:.:.,.,:..7..:":":::99~~9:..;~~":.....:.:..".;;::..:.:.:.:..:",:..:..:.,99..9 /' ,,/ "".. / '" ~" ~~.._ %~ /: y- I ~ -t.., ,,' '~.."~&~~'!,.-"@':~~"" \ 1 .. ..............)~.........;.............:.r........... .' ~~;><; _~ '- ~7 /' J lJ I "" I I I /:NWlJaoso ;.. ~";;:Ii';Jl''1.~~",:;O';i,''I;~'.~.;i..;;.<:;:iJ \ J ..,...,.,..\"""9.....9YR99V"..9..9..9"V..,"...9..V"'~99..9..9..9.,.V ...." /" ~ 9' . -,- . ........ ........ ~- / . . ""'" I -'if !'''''::'1'''I,-emif'-;".~,;J''.-J!''' .. \/ _{ ................................................. .' /'.r...-r ~ ---.--~."--.......~-.,,... . . ftivBOTTOM i I jf'''~ I - .~ : \~_It~~r~~'&~r .., ~:::fiW~f:::::::~,~::::::::::::::::::::::::::::::::::;:::~::::::::::::::::..~~~ > ,..~..<~~~~~~.::::..._..~~~_....._~ ~~~,"'.., ~ ... .-808.21' I " :r.. -'~ " ',: ~~':::..'t!Jl~~;tf-',P.!ft...~Jj!;.~~_>!J~ " '(7'C'v..v":'..1'"..'I'<:I/"1".,'It....v~V.,v...,<:'..v....";~tt~ ,,"..v'nll' ~ " ~7Y~.//,,'."'''', ......~ ~ \ ~_....-- 800 I Dn"I,..lII"I~ ....<<.. 600 '..;I:n"'\\~ili"jjii~!l~~~~~'\i ! .~.";-;7;--t.....;"..:..:......::....:..:........... .,...- - " / , ~/' BCOT J~.4 OF INFILTRAr~. ::25! ~TO 804~O}--- r I I (UP TO 180s 0) I ! 81 'tI.:t.I""\l;)iJJ;?;-"?~'~~".,"'^"'.,jj J .....~,......................n ...- - " , 'ANO .REPLACe:--W1TH "0% SAND: ~:1.-oMIY --. I . I f,~~{:~ '~~~~~~i:W~1' I -""..:v:,,.k~.:..t.,.:...:.,,:..:~:..:..:..:..:..:"I:..:..:..:....:.~'/v..........v /..../..' i r . " ....~... r-, .....- ...........-'.. - I ~ I I '7<' m""'~~~~"'i:.~1~: ~,' {. :::..::..:......::.... /.- / ; TqP-SOJl, 25% LEAF COMl?.Q.:>T ,~AtfK..!.~ ~!..9.~_ I BOTTO 0 a01.0 ' I (l\' ~1_J!8~.&;:,,,' -~ '-- ----.-- --, ~ ,,:V , GRliDE CaOS-4-)----... ...... '-- ,,"'-, I I ; ~,~...~ [t.!.~'""':i", "~'!!I.~'" ~. ---____--- -----.1 -- - ..... ......... .._" .....,' ..:' .... - ......_.. ..--............-::.............-- I : I \" W if.-.., 1l;li~~ ;): ?:/ .'. ~~ / .-- .-Sf2t:b -WITH J.lnQ01=iolIX 258--.-.----..---..-----.- _---- I i. I _ I I :1 \, 1) 1li~~ ~~f~~~~ .~. ...... ~ ,...... .... _ NPiq..-.J ~: /-"':~Bott'" '.... _---______--- _--~- , \'" "~ ,-",1,;,"""'" if ... --'-' ~ ----... /'./..v _,"'1HE LOCATIONS OC-f;l\lSllNG'UNOERGROUNiY1J11IJTIES nlAT ..ARE-.sH61'1N.----- 0 20 40 60 so 100 120 140 160 'i' .,-' ~,,,~ .... ~1' ...- .' -.' ",/ ....-- ARE S(l0'Mi.rN"W.1d:>PRGxn.lA'l'E..\IfAY ONLY. .rr-1Sl'WT"GVA/<AN:rEFJ).'THAT. :ifu.. .~t~#"^' __ ~"--;:- .__......... ,,_ ....----.r~'--....., . ~ / _._..-ANY!OR.!'ll E;;6$TIN/;;,VTIUTIES ARE'~O'M;l.-"1JiE'-GON:mACtOl3--SHNJ::':> INFILTRA110N AREA SECTION 8-8' . .::; ~.,_<."'_~____~ .u.. ------~-., --.----- ......__-m-~-:... -"--.m.' // ./ /-. DtTtRMl~ TrjE .b(AC'l\LOCATION OF A!-L-'EXlSJ1,HG Y.11UJJES-llEFgR&--->-:. , .~.-.- ~~~n-. u. ~.- .... ~___.. _.--'-' ..---. . .--- ___-' .."-' ...., ..,COMIoIEN9NO/.'I0RK. H!;''''(lRe:E;s--ra.B.~ FUJ.;:S<'Rt~9.tIS!~,LE..FOR..AN'(.AHp.. -. ......... ----.-.----. /' ._--.- -" --... -&2'J"-- ...., ... ...-'- AlL DA).(AGEr 1\HlP! IollG'd-TtlE OCCASlO>>EI;VBY-flIS FAILURE .nn::>;..,~y.-; . .___ __...m..... ..'---'-'" _---.-.. _---- ....---' ....--., _...., ..LOCl'>iE ANOI P~S'"c:RVE ANyf)..N.Q_..w:WO~u1lD))f.s::::::-.::::..;.-;;: J li~E6Y CEJmFY ~ THIS PV.N. SPEClFlCA.noN, OR R90RT W/oS PftEP)oREO ~ I I ;rf~ORUNO<;<....._O"EcrSUPElMSlOH""'1'HATI""'AOVCYUCEllSED OMP 1\=OLTr---.N & MENK fNr-- ..,. '" "'''' ,LHAKOPEE MDEWAKANTON SIOUX COMMUNI""'" SHEEr 60 0 60 ?ROr~1ONAt. ENCiNEER U.oIOER TliE LAWS OF lHE: STAn: Or Mlt.lll!;SOTA. 1::::> '--' . '--' _ .....J I . I I J ~-- _ I 1(. 1,-. ~ ~ :; Consulting Engineers & Surveyors , : """ I ,-,.... EAST VILLAGE SUBDIVISION 2004 2.0~ SCALe. ,e.Er KREG ~ I . """<ED MA.'IKATO, MN F"~JRMOt". MN SL!:EFY EYE. MN WIUJolAR, MN I I ":\S"SC\C'23421<\c.:,D\:l421<?ONOS.d~o 0920-200.: 8:50.", uc....24307 "" flU/Of KJS BURNSVlLLE. MN Cf'.ASiG'. "'N AMES.IA I I POND/INFILTRATION AREA GRADING SHEET 2.05 . > SEE SHEET 4.05 SEE SHEET 4.03 ... ~ II II I, 1 I 11 I r-'b,.'-l .. \ II II \1 I I I I I I 1t \ \. \ LOT 3 11 LOT 2 II LOT 1 I J I I I I LOT 6 I r I LOT 6 ~\ II II ,l!' 11 I .\ - \ .. \ -1 L ______-1 L__________-.J T I L ___--1 I L ---- ~ \, ~ i r- <i1 ;' -L I r ~ CUR~DATA\ 11 ~ t i OUTlOT A I BLOCK 2 ti \ i ~ \ \ BLOCK 1 o = 25'OS'07" ~ 1 \ t:i I I ~ ~ I W I ~ I Do = 19"1\:29" ~ BLOCK 5 I I ~I \l,~, 1 I LOT 7 g: I 1 1 I T=66.12-.. \ II t-II 1'\ I (/)tl-,. R = 297.0c. ~ (/) I ~ ~ .' LOT 7 L = 130.12" \ LOT 5 LOT 6 I I LOT 7 I I I \ I ~ CURVE DATA I I .. '" I I I - ~ I D = 92'08'33" .. '\ I I -I I F&:I: I Do = 138>37'48" I I OUT~T 8" II I - ,,6.'3 LF PIPE RAlUNG . I I '*' "'\ I f:, IJ~ I - r1(SEE BRIDGE DETAIL) IT=:' 42.91 1l .. ~ t'l!::.. II II. ~?~1 ~ R=4U3 0;~~j I ~ PC 1:1.84.16 ~~ ____......____-;-...1 L-,-______, STREE:L A -' L_____......___.:.--.: L___ L =~6.47__ ,0,; PT 24+n.28 _-,-__ ~ .. I i. 12 sn.I I . I ~ · '- -,.- '-'" ->. -. -.' -,..--.....-..-.. ...- . - t;; .... -, - . .- - -<<- w -. '%+00" I. '~cr-' '--nI-i'llo-' ,(- -<<- ill ~ CUR~~ATA 15"STM ~ o = 87'4 ~4" ~~\) Do = 138'3'~8" '" ,.,_ ". NOTE: Iii 0..... /'f;?'~ '-,..... = 39.77 . ~ONlRACTOR SHALL CONSlRUCT B618 . y t;!; ~ ~ = 41.33 .. .~NCRE1E CURB &: GUTTER AT ALL J :-'!" ] L = 6333. _.... INTERSECll0N RADII. FULL B618 CURB SHALL . :!: g: F&:I' ... .... EXTEND FROM EVERY PC TO PT \'IIlH A 10 n . tJ , .... 6'6'8>.,. FOOT lRANSlllON TO SURMOUNTABLE CURB @ 14 CY RIPRAP (CL. IV)J 0. t-....:.' ....'1 5 CONCRETE .... · -..:"" . . . F&:I: W! FABRIC (lYPE IV) . '.',. ~ . ., SIDEWALK ... 10 ~~ 7 C'( R1PRAP (CL. IV) · \ .. '<8.Y (F&:I: WI FABRIC hYDE IV) . ~ 8' BITUMINOUS <0 22 C'( RIPRAP CL. IV) \' " lRAJL .. .. ~ W! FABRIC (lYPE IV) 1! .. \ NOTE: .. \ .. '- F&i: lliITE;. lHE LOCAll0NS OF EXIS11NG UNDERGROUND UilUllES lHAT ARE SHO\\N, .. "..w CY R1PRAP (CL IV) 4' CONCRETE SIDEWALK \'IIlH WEAK PLANE JOINTS ARE SHOWi'l.IN AN APPROXIMATE WAY ONLY.. IT IS NOT GUARANTEED lHAT - .. W!FABRIC (lYPE IV) 5' O.C. ABER JOINTS 20' O.C. BROOM FINISH. ANY OR ALL EXISilNG UllUllES ARE SHOWi'l. lHE CONlRACTDR SHAlL \ .. . DETERMINE lHE EXACT LOCA 110N OF ALL EXISTING UllUllES BEFORE .. ALL SlAB ON GRADE CONCRETE SHALL HAVE A MIN. COMMENONG WORK. HE AGREES. TO BE FULLY RESPONSIBLE FOR ANY AND 1..Ii 28 DAY COMPRESSIVE SlRENGlH OF ..wOO PSI. ^ ALL DAMAGES WI-lICH MIGHT BE OCCASIONED BY HIS FAILURE TO EXACRY LOCATE AND PRESERVE ANY AND ALL UNDERGROUND UllUl1E5. 820 =-,~ : ~ i : !-i !~~i..-, '_' ~J.~ -1- i -~; 820 . 'a.' 'r-- - , . . '-. ; ~;.'t)-'; I _1 ; - . 1il+2 . 0 I - , . 815 =-, _, i p'-; ,@ ref '~. ~ - =~ ' _ ~ 815 810 ___ '15.:!:.~J.fi1. _; :___. :>92-15 ~I 0 Qd1z-L____ . 810 __ - :____~---: __ ! -:-+ - I It 1~.3.Jb~809.4O(15'*N_! : I . ----r- 1 --r---:-:r--- . . .. ". - . 805 ----- -- -~r-81lr.OO~1~=l;> i@.:--@-i.,,:,i'-i---805 i l:gg~::(~3~E I 15+3'7l94 ;5+43~ I I - I ., -- 790 ; :811.50ill:>4-_' - 790 i i , i . 1';'808.20{f21~ , , ---= 785 ,,-- ..806.00(66.:) I ' 1-6il.2.~6') i i i i 785 ~ ' ~ t ~ ;~~ _ ~ ~. ~.,~ a~~ ~ ~~ .. . ~ I :, ~ 13+00 14+00 15+00 16+00 17+00 18+00 19+00 20+00 21+00 22+00 23+00 24+00 I HEP-E3Y C!ImFY -, Trl~ ?W<, SPEClFlCAnoH. OR REPQIr. ,,!oS PREPAP-'" """"'" HAKOPEE MDEW ^ v ^NTON SIOUX COMMUNI S~-ET '" HE OP. V"OER NY "'REor SVPElMS"," ",0 -, , AM ~ OVLY UCEI'SED DMP 11\ B 0 L TON & MEN KIN C. ""'- /"V\r\ n~ I 50 0 50 5 0 5 PROr:..SSlONAL ENGI/'O'EtR ut.'OtR THE lAWS OJ THE STAn:: Or W1HHESOTA . , .. HORIZ. ~- I VERT.~...l"'" I 1<. fl.. ! ~ ;-.; Consulting Engineers &: Surveyors I EAST VIUAGE SUBDIVISION - 2004 4.0o~ SCALE Ft:Ei SCALE FEET KREG 7'%UDT L """"" I IoCANKATO, IoCN i"AlRMON!, IoCN SLEEPY EYE. IAN W1lLMAR, IAN I STREET & STORM SEWER 4 10 H,\SHSC\C'2:l4214\e.\RC,020DZ.d.a 09-20-2004 ~,'D am o:."~ 24307 "''' g z..s:1 04- KJS eURNSVlLLE, loiN CH,oSKA, IAN Al.IES, IA I I STREET A 13+00-24+00 . z 0 ~ :c (') :c -.. )> 0 z z .' m r v1 :2: c. =i ...;: :c --\ CD tJ 2Q 0 '2 (j) ( m 'L ~ '"tJ r or ~ ~ lD ;> 2:! 0 '0 (j) " m "" ') 5e C' ~ 1"'\ 0 ~") 0 1:... -!:>> "1.:. :;. r: ~ '\j ------~ ./>0 I to ~rl r-i II>> g,> Wi III I ::J 0 ....J CC . "'"' $ C 0" III : sa a 9i ". a! i \l) ~i! i I._._____.__._mm______________,..... . . 170.00 808.12 809.90 808.91 809.95 0.001184 1.88 90.26 61.37 0.27 900.00 808.12 813.06 810.33 813.17 0.000609 2.73 343.92 99.06 0.23 Bridge 170.00 807.99 809.63 809.70 0.001595 2.08 81.60 59.65 0.31 900.00 807.99 811.87 812.06 0.001546 3.58 279.22 163.77 0.35 170.00 806.00 807.67 806.79 807.73 0.001502 2.04 83.28 59.99 0.31 900.00 806.00 809.93 808.22 810.12 0.001503 3.57 270.28 130.78 0.35 <. * SCOTT COUNTY PUBLIC WORKS DIVISION ........&. 1 """',,', HIGHWAY DEPARTMENT ,600 COUNTRY TRAIL EAST 'JORDAN. MN 55352-9339 Scott (952) 496-8346 . Fax: (952) 496-8365 'www.co.scott.mn.us LEZLlE A. VERMILLION PUBLIC WORKS DIRECTOR September 29,2004 Mr. Bruce Loney, P .E. Public Works Director / City Engineer City of Shakopee 129 Holmes Street South Shakopee, MN 55379 Subj: EAST VILLAGE PLAT - SMSC GRADING PERMIT APPLICATION Dear Mr. Loney: The Scott County Highway Department has reviewed the grading plan for the stormwater ponding for the subject plat and offers the following comments. In February 2004, the Highway Department presented a preferred alignment for evaluation in the "build" scenario for the CSAH 21 EIS to the County Board of Commissioners. The preferred alignment completely avoids the YMCA Camp property and runs entirely on the 80 acre parcel west of the YMCA Camp, owned in fee by the SMSC. A review of the preferred alignment in relation to the proposed stormwater ponds on this. parcel clearly indicates that the eastern portion ofthepond is proposed in the same location as the proposedCSAH21. While this does not necessarily preclude the future construction of CSAH 21 through this area, it would add unnecessary and avoidable cost to construction of the highway. We anticipate we would be required to re-configure the proposed ponding in order to perpetuate it's discharge rate and volume characteristics. This may include the necessity to acquire additional right-of-way and construction of additional storm sewer at consider<:lble cost. Due to the County's cost participation policy, the city would share 50% of these potential costs. Given this, it would seem prudent for all parties to review this proposed ponding before it is constructed in order to minimize potential future costs. It would be more cost effective to all parties to re-design the proposed stormwater ponds now, in order to accommodate all parties interests, versus reconfiguring these ponds at a later date. If you have any further questions feel free to contact me. Sincerely, :JIIL J /~ry //;t ViP-p~._. ,() Gregory M. Ilkka, P.E. SCOTT COUNTY Acting County Engineer Cc: Lezlie Vennillion, Public Works Director An Equal Opportunity/Safety A'ware Employer ~ SHAKOPEE September 30,2004 Greg llkka, Acting County Engineer Scott County Public Works and Land Division 600 Country Trail E. Jordan,1fJN 55352 RE: East Village Plat-SMSC Grading Permit Application Dear Mr. llkka: This letter is in regard to your letter dated September 29, 2004, in response to the Shakopee Mdewakanton Sioux Community (SMSC) grading permit application and possible conflict with future proposed CSAH 21. The City appreciates. your response and will incorporate this in the memorandum going to City Council for consideration on the SMSC grading permit on October 5, 2004. In regard to potential future City costs on the relocation and reconfiguration of proposed ponding, in order to facilitate future CSAH 21,the City would have a different viewpoint. In regard to the County's Cost Participation Policy, the County isrequired to obtain 100% of the right-of-way for CSAH 21 and the City and.County ~ould participate in additional storm sewer. The relocation of the pond, as necessary, would be something that the City would view as part of right-of-way acquisition. Also, it should be noted that the proposed pond by theSMSC serves property in the. City of Prior Lake and owned by the SMSC. Almost no area of the CitY of Shakopee would be drained into this pond, except possibly CSAH 21. The purpose of this response letter is to inform you of the issues that the City of Shakopee may have with your letter. However, we do agree that it would be prudent for all parties to design the appropriate improvements in this-area, which would save costs in the long run for all parties. However, I do believe there is a disagreement between the SMSC and the County on the location of CSAH 21 in this area. If you have any further questions or comments in regard to this letter, please feel free to contact me at Shakopee City Hall. ;;;'~ Bruce Loney, P . Public Works Director BUpmp ENGRlEMPLOYEEFOLDERlPPENNINGTONlLETTERS/CSAH21 Cc: Mark McNeill, City Administrator COMMUNITY PRlDE SINCE 1857 1 ~l) Holm:.> SIl'I.'l..'tSi.lutli 0 Sh:.!l..opt:'t.:. ~liJmi:,,('I~1 G ~:;~7L)-1351 0 Y52.~~3-.;~n() , r;\.\: 95:-23:.-:.~\)~' \,:\l, \1.....:i."'h~t\.;I.)r:';,;.r:j:1.lh