MSV has been involved in design of cut and cover and bore tunnels of various sizes and shapes. We have worked with many reputable specialty Tunnel Consultants on numerous tunnel projects in the past. The tunnel projects we were involved in are cut and cover Tunnel 15 feet diameter for Cedar River Pipeline Crossing State Route 405 at Renton, Washington, USA and bored tunnel about 0.5 mile long 30 feet diameter at Interstate 90 at Seattle, Washington, USA, which carries automobile traffic at two levels and pedestrian traffic at third levels.