08/11/2010 Council Packet (2) - Laserfiche WebLink

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TKDA ENGINEERING 'ARCHITECTURE • PLANNING The right time. The right people. The right oampan CONSTRUCTION ESTIMATE BIRCH STREET (CSAH 34) /WARE ROAD IMPROVEMENTS CITY OF LINO LAKES, MINNESOTA August 11, 2010 444 Cedar Street, Suite 1500 Saint Paul, MN 55101 (651) 292-4400 (651) 292 -0083 Fax www.tkda.com TKDA prepared a draft Signal Justification Report (SJR) for the intersection of Birch Street and Ware Road and submitted it to the County for comment on May 17, 2010. Following meetings with the County, the SJR is being revised for final review and comment by the County. TKDA was also authorized to prepare a concept layout and cost estimate for the intersection signal and associated roadway work. The concept layout is based upon the discussions with the County for the SJR and potential signalization. A draft concept layout was prepared and provided to the City and County on June 10, 2010. TKDA revised the concept layout based on comments received. A construction estimate was prepared using the revised concept layout and in consideration of the following items: • The quantities were separated into two groups, one reflective of the changes on Birch Street and the other for the completion of Sioux Lane to Hokah Drive. • The existing ground elevation was estimated due to the lack of survey information. Topographical information, where available, was used to help estimate the ground elevation. • Permanent right -of -way needs were estimated for three corners. Temporary construction easement for the Sioux Lane connection was also estimated. • The existing shoulders on Birch Street were assumed to need removal and replacement to provide a suitable cross section for through traffic. • Where it was necessary to widen Birch Street to accommodate the new raised median, a full - depth bituminous sawcut was assumed at the inside edge of the road. All of the approximately 6 -foot widening occurs on the north side of Birch Street. • To allow for the raised median on Birch Street, an 8- foot -wide full -depth bituminous sawcut was assumed in the road. This width provides space for the 4- foot -wide median, B412 curb and gutter, and an approximately 1 -foot area for new bituminous pavement between the new concrete and the existing bituminous. • A mill- and - overlay was planned for areas adjacent to new widening or where new striping will be required. An Employee Owned Company Promoting Affirmative Action and Equal Opportunity