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60. BID AND AWARD FOR BRIDGE REHABILITATION OF THE OLD US 80 AT GILA RIVER (GILLESPIE DAM BRIDGE), BRIDGE PRESERVATION PROJECT Approve the solicitation of bids for the Maricopa County Department of Transportation’s Bridge Rehabilitation of the Old US 80 Bridge at Gila River (Gillespie Dam Bridge), Bridge Preservation Project Number T188. Award the contract to the lowest responsive bidder, provided that the lowest responsive responsible bidder does not exceed the engineer’s estimate by ten percent. The historic Old US 80 Bridge at Gila River (Gillespie Dam Bridge) was built in 1927 in general vicinity of Arlington in Maricopa County and was listed on the National Register of Historic Places in 1981. The bridge is one of the largest steel truss bridges in the state and was a vital link in the US-80 Highway (Ocean-to-Ocean Highway). The purpose of this project is to improve the Old US 80 Bridge at Gila River by providing structural repairs to this historic bridge. This project will require the following work: Bridge bearing repair, Concrete deck repair, Pipe railing repair, Sway bracing repair, heat straighten bent members, Add diaphragm to brace stingers, Scour protection, Protective beams, Temporary at grade detour, Signs for bridge, Repave approaching roadway, Expand Interpretive Centers with Historic Markers and Install approach guard rail. Supervisory District No. 5 (C-91-10-082-5-00)