Agenda - Council - 06/23/2009 - Laserfiche WebLink

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CASE 4 CONSIDER AWARD OF CONTRACT FOR CITY PROJECT 908 -27, 167 AVENUE NW REALIGMENT By: Tim Himmer, City Engineer Background: On April 8, 2008 City Council authorized staff to prepare plans and specifications for the realignment of 167 Avenue NW. During the required acquisition negotiations leading up to that authorization 3 alternative roadway alignments were advanced and discussed several times with the Council. The final decision, settling on. the current alignment as approved by Council, was made on June 24, 2008. The chosen alignment was a compromise which resulted in a 25 mile per hour design curve through the western end of the project, thereby reducing the impacts to the existing residents and wetland. The reduced design speed through this curve necessitated the need for a variance from MnDOT, which was approved on June 11, 2009. Observations: 166'h/167 1h Avenue is proposed to be reconstructed to MSA standards, including a 9 ton design and 32 foot width; which would allow for parking on one side. Municipal sanitary sewer and watermain are proposed to be extended along the corridor from their current location at the intersection of Limonite Street and 166 Avenue to Nowthen Boulevard. The existing infrastructure will be utilized to the extent feasible, and all streets will remain close to the existing grades and alignment. Storm sewer and ponding are proposed to accommodate surface drainage and water treatment for the area. A southbound to westbound turn lane on Nowthen Boulevard was required by Anoka County and incorporated into the plan set. A 10' bituminous trail is proposed along the northerly right -of -way line. -Due to the narrowing of the right -of -way west of Jaspar Street (80' to 66'), and the subsequent widening of the road surface to accommodate parking along one side of the street, the corridor becomes compressed and results in a narrower boulevard than what staff would like for snow storage and the future ability to landscape. It also creates a situation where multiple significant evergreen trees, located on private property at 7001 166 Avenue Street, would be impacted. During the bidding process staff requested a bid alternate price for the installation of sidewalk instead of the bituminous trail. Based upon discussion, Council may wish to consider the option for the bid alternate and install a sidewalk throughout the corridor instead of the previously approved trail. Funding: The majority of the roadway project including design, acquisition, street and trail construction, and storm sewer installation will be funded with MSA dollars. The wetland impacts /mitigation will be handled with State banking credits. The sanitary sewer and watermain portions of this project are proposed to be funded through their corresponding Utility Funds. The engineer's opinion of probable construction costs is $995,000. Bids are scheduled to be opened at 9:00 am on Friday June 19 so the final contract numbers will be presented prior to ` the City Council meeting on June 23