1A, Cty Road E Bridge Update - Laserfiche WebLink

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~ EN HILLS MEMORANDUM DATE: May 14,2009 Agenda Item I.A TO: Mayor and City Council Ron Moorse, City Administrator FROM: Kristine Giga, Civil Engineer SUBJECT: County Road E Bridge Update BACKGROUNDIDISCUSSION In February, staff requested quotes from consultants in the City's engineering pool for final design services for pedestrian improvements to the CR E bridge over TH 51. The proposed design layout was based on the feasibility report completed in 2004. This layout was submitted in 2004 and 2006 for Cooperative Agreement funding. The design includes reconfiguration of the lanes on the existing bridge, construction of cantilevered supports to widen the bridge deck, and construction of a 7.5 foot sidewalk. During the RFQ process, staff learned that the Mn/DOT Bridge Office had commented on the 2006 Cooperative Agreement submittal. However, these comments were not included in the original comment letter from Mn/DOT in 2006, but have since been provided to the City. Their main concern was how these improvements might compromise the bridge's structural integrity. They were also concerned that the proposed improvements would lower the rating for the deck geometry, which is already at a deficient level. The Mn/DOT Bridge Office has indicated that the proposed project would trigger additional improvements to the bridge so that it would no longer be functionally obsolete. The Bridge -Office would not support this project as proposed without correcting the bridge's deficiencies, and currently there is no funding available for bridge expansion. In light of this, the City has been working with Mn/DOT to determine what improvements, if any, they would support on the existing bridge to improve safety. Two alternatives have been identified: Alternative 1: Modification to the existing bridge at the existing width \ \Metro-inet\ardenhilIs\Admin \Council\Agendas & Packet Information \2009\05-18-09 W orksession \Packet Information \5-18-09_ Memo- CR_ E.doc