R2011-106 AUTHORIZING AN AGREEMENT WITH URS CORPORATION

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y • December 6, 2010—The City Council approved Resolution R2010-232 authorizing Supplement ement #1 to the Agreement with URS Corporation for the preliminary design of the PP �' � p Y g South Shores Bridge over the Sand Creek Arm of Lake Decatur. The supplement was to complete the preliminary design to raise the bridge by approximately 3 feet. The expenditure for the services provided in Supplement #1 was not to exceed $57,200 which brought the total cost of the preliminary design agreement to $134,700. BACKGROUND: South Shores Bridge The South Shores-Sand Creek Bridge was originally built in 1909. A new superstructure was placed on the old abutments in 1965. The foundation and abutments are 100 years old and the super-structure is 45 years old. Routine inspections carried out by City staff and various consulting engineers since 2004 have determined that the outside beams of this bridge are deteriorating and have moved with respect to the rest of the bridge. In August 2006,the Illinois Department of Transportation(IDOT) directed the City to place a weight restriction on the bridge and to perform follow-up inspections every 6 months to monitor the outside beams of the bridge. Since the damaged beams are not in the wheel path, the bridge is safe for normal traffic; however, the 6 month inspections show that the bridge's deterioration is increasing. The bridge needs to be replaced in the near term before stricter traffic restrictions are imposed. $1.04 million in Federal Surface Transportation Program—Urban(STU) funding is currently allocated to fund a portion of the bridge replacement cost. Current preliminary estimates place the bridge and roadway replacement cost approaching $2 million and the cost to raise the Sanitary District interceptor at $550,000. Additional STU funding is being requested and the District has indicated a willingness to cover the interceptor costs. A public meeting was held on June 29, 2011, at the South Shores Elementary School to present the latest preliminary design which includes raising the bridge by approximately three feet. Final Design The proposed agreement with URS is to complete the final design for the new bridge. The work includes: 1. Designing the structure including cofferdams to allow the construction of footings in the lake. 2. Design the roadway approaches along the causeway to raise the road level to meet the increased height of the bridge. 3. Prepare plan sheets and the project manual in accordance with Illinois Department of Transportation standards. 4. Prepare documents to obtain additional right of way and easements for the construction. 5. Prepare designs to raise the sanitary sewer and address the sanitary sewer services of several properties on the east side of the bridge that may require a small pump station to be installed (a portion of this cost will be reimbursed by the Sanitary District of Decatur). 6. Answer questions during the bidding process. Bids will be advertised and let by IDOT under agreement with the City. This agreement will come before the City Council in late 2011. Page 12