Tunnels

Mole Constructors, Inc. performed the first Precast Segment Tunnel in North America when we excavated 3.3 km of 2.16 m diameter sanitary trunk sewer in the city of Thunder Bay,…

Completed in 1983 by Mole Constructors, the Eastgate Trunk Improvements project involved approximately 1,800 linear feet of tunneling, employing a 76-inch Scott Tunnel Boring Machine. The tunnel was supported by…

Completed in 1982 by Mole Constructors, the Blue River Force Main project involved the excavation of 8,300 linear feet using a 102-inch Lovat Tunnel Boring Machine. Rock and bolt (R&B)…

Completed in 1982 by Mole Constructors, the McDowell Tunnel Extension project entailed the construction of 10,800 linear feet of 102-inch tunnel employing a 102-inch Lovat Tunnel Boring Machine. The tunnel…

Completed in 1982 by Mole Constructors, the White River Basin Part A project involved approximately 4,500 linear feet of 48-inch tunnel constructed using a 63-inch Scott Tunnel Boring Machine. The…

Completed in 1981 by Mole Constructors, the Four-Mile Treatment Plant – Contract 1 project involved the installation of approximately 5,000 linear feet of 60-inch pipe within a tunnel. The tunnel…

Completed in 1981 by Mole Constructors, the Stillwater Tunnel Backfill Grouting project involved repairing approximately 7,000 linear feet of tunnel without excavation. Repair methods included backfill grouting, cement slurry application,…

Completed in 1981 by Mole Constructors, the I-696 Repair project involved relining approximately 4,000 linear feet of 102-inch tunnel using corrugated, galvanized 92-inch liner plates. The process included filling the…

Completed in 1980 by Mole Constructors, the Newton Interceptor – Contract A project involved excavating approximately 10,000 linear feet of 106-inch tunnel using a 106-inch Lovat Tunnel Boring Machine. The…

Completed in 1980 by Mole Constructors, the Four-Mile Treatment Plant – Contract 2 project encompassed about 3,300 linear feet of tunnel and 4,000 linear feet of open cut. It utilized…