08-26-2015 Council Packet - Laserfiche WebLink

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IL'4'-' Illi cCfl(11T } VIII Jti 110ikTfl Memo TO: Honorable Mayor and City. Council Members FROM: Lee Elfering, City Engineer DATE: August 21, 2015 RE: Centerville Road Powerline Relocation/Burying As the Council is aware, the improvement of Centerville Road was delayed this year after discussions with the private utility companies on the impacts and time necessary for relocation of their facilities within the right-of-way, One of those impact discussions was with Xcel Energy Electric regarding the relocation of the power poles that are impacted along both sides of Centerville Road. With the extent of the impacts we requested that Xcel review the need for poles on both sides of the road and look at combining facilities to allow poles on only one side of the road. Move all poles to the west side Xcel's preliminary review concluded that only the poles on the east side of the road are owned by Xcel, the poles on the west are owned by the phone company and are only used by Xcel to run individual house services. If poles were only going to be on one side it would need to be the west side to provide overhead service to the homes. If the mainline was relocated to the west, new taller poles would be needed to allow shared use of the poles and additional trees would need to be removed to meet clearance requirements. The additional tree impacts would be within the right-of-way of Centerville Road. However, given the fact that the road proposed to shift up to 12-14 feet to the west in some areas and this option would increase the impacts to the existing screening of the road for several of the residential homes on the west side, it may not be worth the benefit of eliminating the poles on the east side of the road. Xcel has also not indicated if there would be any costs to the City for this option. Bury the Powerline While discussing the impacts of pole relocations the option of burying the powerlines was inevitably brought up. You may recall this option has been discussed on other projects, but typically the high cost has outweighed the benefit. To review all avenues we requested rough general numbers for burying the mainline power from Allen Avenue to Eli Road which is where the pole impacts occur. The initial approximation of cost was a net expense to the City of $90,000 if all services remained overhead. However, after expressing an interest in the possibility we were informed the original estimate was low and a new estimated cost of around $200,000 was provided. All services would remain overhead, so the poles on the west side would remain and electric boxes would be added near each pole. Services could be converted to underground, but at an additional cost, We were also informed that to obtain a true estimate a non-refundable deposit of 10062 Flanders Court NE — Blaine, MN 55449 -- Ph: (763) 780-0450 Fax (763) 780-0452 Memo -082115 -CC (Powerline ReolcatIon-BuryIng),doo