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Home My WebLink About4.C.3. Overhead Power Relocation on 4th Avenue for the Valley Park Business Center �� Consent Business 4. C. 3. 5t�,��c��-�-. TO: Mayor and City Council Mark McNeill, City Administrator FROM: Bruce Loney, Public Works Directar DATE: 08/07/2013 SUBJECT: Overhead Power Relocation on 4th Avenue for the Valley Park Business Center. (D) Action Sought Approve a motion determining the existing overhead power lines on 4th from Shenandoah Drive to approximately 900 feet be relocated and shall be placed underground. Background Recently the City Council approved a plat named Valley Park Business Center at the southeast corner of 4th Avenue and Shenandoah Drive. Per the approved submittal, a sidewalk is required along 4th Avenue where an existing overhead power line is located. Per City Ordinance, the City Council can decide if the power lines can be relocated overhead or be placed underground. Attached is a memo from Joe Adams on the power lines in the project area as well as maps showing the power lines. SPUC has adopted an Underground Relocation Fund to pay the additional cost of undergrounding overhead facilities. Mr. Adam's memo does show the extra cost to underground on the 4th Avenue segment adjacent to the development. SPUC has reviewed the item and accepted the cost estimates and recommendations from Joe Adams, Planning and Engineering Director. The City did require SPUC to go underground with the street reconstruction project in 2003-2004 on 4th Avenue from CH 17 to Shenandoah Drive. With a sidewalk required on the south side, continuation of undergrounding the power lines is recommended by staff. Recommendation Approve a motion determining the existing overhead power lines on 4th Avenue, from Shenandoah Drive to approximately 900 feet east be relocated and shall be placed underground. Budget Impact This item does not impact the city budget and SPUC does have an Undergrounding Relocation Fund to pay for this work. Relationship to Vision This supports Goal D: Maintain, improve and create strong partnerships with other public and pricate sector entities. Requested Action Approve a motion determining the existing overhead power lines on 4th Avenue, from Shenandoah Drive to approximately 900 feet east be relocated and shall be placed underground. Attachments: SPUC MEMO SHAKOP��PUBLIC U1'ILITIES �� MEMORAIV'DUM TO: John Crooks, Utilities Manag �/ FROM: Joseph D. Adams, Planning& ,ngineering Director ,�'�.w�/ SUBJF,CT: `'alley View Business Park Project and Overhead Line Relocation DATE: July 11,2013 ISSUE The City of Shakopee is requiring a public improvement, specifically a sidewalk, be constructed within the Fourth Avenue right of�vay east of Shenandoah Drive by the plat developer Scannell Properties. The location of the sidewalk is in conflict with an existing overhead electric feeder line, circuit DL-41. Consequently, the overhead power poles and wires for a distance of approximately 900 feet will have to be relocated. BACKGROUND The existing overhead po�ver line along Fourth Avenue has been in place a number of years, originally constructed during the mid-1970's as the municipal utility extended service out to the industrial park from the Shakopee substation. It has subsequently served as a feeder tie between the Blue Lake and,more recently,the Dean Lake substations to the Shakopee substation, �vhile also providing lateral service to the adjacent properties within SPUC's electric service ten•itory. Located at the southeast corner of Shenandoah Drive and Fourth Avenue is an overhead platform�vith tlu•ee large single phase voltage regulators that enable the circuit tie to transition from the 13.8 kV distribution voltage of the Dean Lake substation to the 12.47 kV distribution voltage of the Shakopee substation. Per the tenns of the City of Shakopee's Right of Way Management Ordinance,the Council may order the line to be relocated underground pending notification of the cost difference between relocating the line overhead. The Commission may recall that in 2003-4, 4vhen Fourth Avenue was reconstructed and transformed into an urban section from a rural section west of Shenandoah Drive, the then overhead electric po�ver lines �vere relocated and placed underground at the Council's direction. Staff believes it is likely that the City�vilt have the sidewalk extended eastward atl the way to CR 83 in future public improvement project and if the overhead line is going to be placed underground now the undergrounding of the line�vill continue to the east and that the overhead voltage regulators should be replaced with pad mount equipment no�v. And not just moved to the east end ofthis project,only to have to be dealt with again in the future. DISCUSSION Staff has reviewed the construction plans for the right of way improvements, i.e, the sidewalk and has determined that the estimated cost ofrelocating the existing facilities underground would be approximately $144,000. This would include replacing the overhead voltage regulators with pad mount equivalent voltage regulators, while keeping them in the same general proximity to the intersection. Conversely,relocating the existing facilities back 5 feet to al low the sidewalk construction within the right of way while keeping the facilities overhead�vould cost approximately$15,000. 7'he funding source for the relocation of the facilities would be from electric revenues via standard rates for the first$I 5,000 and via the Retocation Underground Charge fi�nd for any excess(approximately$129,Q00)due to placing the facilities underground if so ordered by the Cotincil. This is in accordance with the Commission's relocation policy adopted in Resolution#7�2 Resolirtivn F,stablishing a Relocation Underground Charge c�r�tec� Novemher 3, 2003. Unfortunately, this was not an anticipated project for this year or anytime in the current five year CIP,as the City did not have an identified project for the sidewalk in their five year CIP either. 1'he timing of the sidewalk construction appears to be primarily development driven. Regardless of the Council's determination on whether the facilities may remain overhead after being relocated or will havc to be placed i�nderground, the developer Scannell Properties has expressed an interest in possibly having the voltage regulators moved away fi�om the intersection, which is the entrance to their development, for aesthetic reasons at their cost. Relocatina the voltage regulators to the east creates an added expensc independent of the question to relocate the facilities overhead or underground. The intersection is the boundary line between the distribution voltage levels on the electric system. SPtJ plans to add a firture Dean Lake feeder running north along Shenandoah Drive from the substation which will also be energized at 13.8 kV. That circuit would have to be extended an additional distance as far east as the voltage regulators at an added cost of approximately $22,500. RECOMMENDATION Staff recommends the Commission accept the estimated costs described above and direct staff to forward them to the Council to aicl the Council in making their determination under the City's Right of Way Management Ordinance whether or not to order the facilities to be relocated underground to accommodate the side�valk. Staff further recommends that if the developer desires to have the voltage regulators relocated to the east that the developer would have to first agree to fund the extra cost impacts to do so. REQUESTED ACTION Staff rec�uests the Commission adopt the recommended actians. II I Existing OH Electrical 8"x6' TEE, 6" GV, COPfNECT TO EXISTING CONNEC7 TO I � I 13�-6" C900 dc ��H 6 SAN MH 3 EXISTING W/M i HYDRANT ASSEMBLY E 740.48 ��-Z�� HDPE �E(W) 732.93 60LF-30" HppE � 0.257. IE(E) 732.93 f ae" DIA. A 0.25R � CBMH 5 4`^'� IE(S) 733.03 I RM 744.23 40 fT CHi-OF-W�Y E�SEIAEnT , SC f IE 741.53 �.. YER DOC. N0. 2149V tY RCP IOLF-30' RCP ' '-r--"-°"" ae' DiA. 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