This new bridge carries four lanes of traffic over the Cowlitz River and Burlington-Northern mainline railroad. The bridge serves as the main link between downtown Kelso and Longview. At 1,120 ft long, the bridge was constructed using reinforced earth techniques with precast panel facing. The span of the bridge over the river has six piers founded on three 10 ft diameter drilled shafts. The bridge deck and rail are cast-in-place concrete.
Features include a design-build concrete foundation poured underwater via tremie and precast boxes. The curved walls and flared floor of the chute were built in a 25 ft deep sheetpile coffercell. Stoplog guides, stoplogs and hoist, vertical and inclined gate guides and gates, and associated hydraulic and electrical controls were included in this project.
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33455 6th Avenue South
Federal Way, WA 98003
Tel: (253) 943-4200
Fax: (253) 943-4021