The Submarine Mission

by Bob Galteland, P.E.,
Dave Swanson, P.E.,
Kylie Yamatsuka, P.E.,

Serial Information: Civil Engineering—ASCE, 2002, Vol. 72, Issue 3, Pg. 50-57

Document Type: Feature article


A new Navy engineering and support facility for submarines has been designed and constructed at Lake Pend Oreille, near Bayview, Idaho. The project includes a bridge approach to the facility, a pier, and an overwater building that allows for climate-controlled testing and concealment of scale-model submarines. Engineers opted to locate the structure in deeper water 30 m offshore, thereby saving dredging costs and protecting salmon-spawning areas. The pier was constructed of precast-concrete panels with hatches for access to submarine models. Project costs were reduced when engineers realized that the access bridge, a precast concrete structure, would not need to transport fully-constructed submarine models. The test facility, which stands on the pier, is 16 m high with a 1,400 m2 base, and employs a concentrically braced truss movement frame lateral system. The facility was completed in 2001 and is currently in operation.

Subject Headings: Submerging | Precast concrete | Piers | Concrete bridges | Project management | Bridge tests | Water conservation

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