Specifications include, but are not limited to: The Project consists of constructing a 50’ single span temporary bridge structure and roadway approaches spanning existing corrugated metal pipe arches to remain undisturbed. The Owner will retain ownership of all materials, including the temporary bridge, at the conclusion of Construction. Two temporary bridge options are presented in the Contract Documents: Alternate A – Two-Lane Temporary Bridge and Alternate B – One-Lane Temporary Bridge. The Contractor may elect to bid on one or both Alternates. A brief technical proposal shall accompany the bid and shall include at a minimum: • The geometric characteristics (span, roadway width, total bridge width, and superstructure depth) and description of the materials of the bridge. • A certification that the proposed temporary bridge meets the load capacity requirements and bridge rail test level as indicated in the Special Provisions for Section 501. • The anticipated assembly, installation, disassembly, and transportation procedure • The anticipated project schedule, including approximate lead time for temporary bridge fabrication if applicable.