SR 14 Widening at Camas Washington
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This contract involved the construction of 2 new bridges and widening 2 bridges for Prime Contractor Tapani Underground. This contract also involves the installation of two Cofferdams on the East Camas Slough The existing bridge over the West Camas Slough is 1,050 feet long and comprised of 6 spans. The existing concrete overhang and rail were removed and replaced with new 6’ overhangs and Massachusetts style rail. This project also involved the use of Self Consolidating Concrete between the exterior girders to strengthen the new wider overhangs. The new bridge over the East Camas Slough is 345 feet long and comprised of 3 spans. There are two piers that were constructed in a three month in water window in the Camas Slough at the mouth of the Washougal River. These piers required four sided sheet pile cofferdams set atop a layer of bedrock and utilized three levels of horizontal walers. The cofferdams were 25’x25’x26’ tall. MJ Hughes and it’s subcontractor excavated 500 cubic yards of silt from within these cofferdams and placed underwater concrete seals in the bottoms of the cells.
Project Team and Stats:Location: Camas, Washington |
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