The project is limited to the removal and replacement of the existing Plumbago Road Bridge over Kanaka Creek. The existing bridge is a single-span railroad flat-car structure with a span length of approximately 90 feet. It will be replaced with a 92.5-foot long and 18.3-foot wide, single-span, cast-in-place bridge. The girder superstructure will be a prestressed concrete box supported on seat type abutments with 36-inch cast-indrilled-hole concrete pile shaft foundations. A temporary detour bridge will be constructed immediately east (upstream) of the existing bridge to accommodate traffic during construction, as well as provide construction access. Improvements at each of the approaches will include approximately 145 feet of new gravel road. The Project is expected to remove approximately thirteen (13) native trees, consisting of three (3) white alder, eight (8) Douglas fir, and two (2) incense cedar. Equipment and machinery used to construct the project will likely include front loaders, excavators, cement mixers and welding equipment. Access to the site/staging area will occur along Plumbago Road.
