Demolition, site work, paving and new construction of a bridge / tunnel in Valparaiso, Indiana. Completed plans call for the demolition of a bridge / tunnel; for the construction of a bridge / tunnel; for site work for a bridge / tunnel; and for paving for a bridge / tunnel.

Management is seeking sealed bids for the project designated as Bridge No. 73 Replacement - CR50W over Cobb Ditch. The project is located on CR50W that crosses Cobb Ditch at approximately 0.60 miles south of CR 600 S, Section 2, Township 33 North, and Range 6 West in the Boone Township of Porter County, Laporte District, Indiana. The project consists of the replacement of an existing bridge with a new three-span bridge. The overall purpose of the project is to replace the existing structurally deficient bridge and improve the conveyance of Cobb Ditch under the bridge. The new superstructure shall consist of a reinforced concrete slab deck. The superstructure shall be supported on reinforced concrete abutments on steel H-piles and extended pile piers. A reinforced concrete bridge approach will be used behind both abutments. New approach roadway will consist of 4 of HMA on 10 of Compacted Aggregate No. 53 with Geogrid. Additionally, the approach roadway will be widened 2 ft and earthwork is planned to not include fill for the roadway section. Drainage improvements include new ditches, a 15-inch pipe is planned to be installed beneath the north side of the roadway, and an 18-inch pipe is planned to be installed on the northwest side of the bridge. The project will also include demolition and removal of the existing structure, and installation of the proposed structure. The work includes the carrying out of all duties and obligations and the furnishing of all labor, materials, tools, equipment, and other incidentals necessary or convenient to the successful completion of the project.