A project nearing completion in the Detroit area utilized a custom-built, diver-operated vehicle that can operate underwater and that replaced concrete liners for two raw water tunnels, eliminating the need for dewatering and diversion or prolonged outages. The diver‑operated liner plate installation vehicle is a modular, 25‑ft‑long electric‑over‑hydraulic transporter dubbed BURT, for Ballard’s Underwater Ring Transporter. The tunnels both have precast primary segments and a secondary unreinforced lining, and are owned by the Great Lakes Water Authority. The team brought in the Norwegian firm Innova, which specializes in solutions for high-voltage underwater hydraulic machines. These two liners allow for a total of 9 ft of installed tunnel liner per trip down the tunnel.