Tunnel Outlet Canal Lining

The contract involves comprehensive earthwork and canal lining activities for the Stockton Tunnel Outlet Canal project in California, managed by the Stockton East Water District. The scope includes excavation to achieve proper grades for the placement of aggregate base and shotcrete lining, with all excavated material to be off-hauled. The project requires furnishing and installing imported aggregate base, which must be compacted to 95% before shotcrete application. A reinforced shotcrete lining, approximately 400 linear feet long and reinforced with wire mesh, will be installed to line the canal. Additionally, wall drains equipped with check valves and drainpanels will be installed along the North canal bank to facilitate drainage. The project also mandates complete dewatering of the site throughout construction, ensuring a dry working environment. An access ramp made of reinforced concrete will be constructed for canal access, and approximately 120 linear feet of existing 12-inch PVC pipe will be demolished and removed, with the pipe cut flush with the new shotcrete lining at the connection point to a 12-inch HDPE canal drain pipeline. The project is valued between $500,000 and $1,500,000, with a scheduled completion period of approximately 90 days. Bidding is open until October 24, 2025, with detailed technical specifications and project maps provided in the bid documents. The contract emphasizes adherence to technical standards, proper installation procedures, and coordination of earthwork, drainage, and lining activities. The primary contact for inquiries is David Strohm, reachable via email and phone. The project aims to improve canal integrity and drainage capacity, supporting water conveyance infrastructure in the region.