Site work for a bridge / tunnel in Tenino, Washington. Completed plans call for site work for a bridge / tunnel.

The Thurston Conserva tion District ( T C D ) is requesting quotes, including delivery, for four (4) total Prefabricated Concrete Split Box Culverts with Wingwalls. All .four culverts will be 20 L by 12.0 W by 6.0 H (interior dimensions) with 6 H x 4 L .win.gwalls at each corner. The cul vert installation will improve fish passage at the site and i.s funded. by habitat enhancement grants. The project site is near Te nino, WA. The structures shall contain Lifting elements such as temporary pins, eyes, or other mechanisms specifically designed to facilitate unloading and placement. Upon award of bid, manufacturer shall submit shop drawings and specifications for the concrete structure and wingwalls, stamped by a professional engineer in the State or Province of manufacture. Such plans shall provide detailed erection and placement procedures or guidelines. The structures shall contain Lifting elements such as temporary pins, eyes, or other mechanisms specifically designed to facilitate unloading and placement. Upon award of bid, manufacturer shall submit shop drawings and specifications for the concrete structure and wingwalls, stamped by a professional engineer in the State or Province of manufacture. Such plans shall provide detailed erection and placement procedures or guidelines. Delivery dates are estimates only; the actual delivery date will be determined at the discretion of the Thurston Conservation District and the installation contractor. All scheduling/off-loading arrangements will be made between the installation contractor and the manufacturer. Completion Date: August 1, 2023.