As part of its ongoing bridge replacement program, the West Virginia Department of Transportation contracted with Randolph Engineering to design a replacement bridge and associated roadway widening for the existing bridges spanning Big Beaver and Little Beaver Creeks near the town of Craigsville, WV. The existing bridges were rated structurally deficient due to significant deterioration to the deck and other key components.
Founded on fully integral abutments both bridges were single span, spread box beam structures with composite reinforced concrete decks. The bridges are located in a tangent section of roadway and are on a skewed alignment.
The Little Beaver Creek Bridge is a single span bridge totaling 48’ and constructed on a spread concrete box beam superstructure configuration. The Big Beaver Creek Bridge is a single span bridge totaling 50’ and constructed on a spread concrete box beam superstructure configuration.
Due the close proximity of Little Beaver Creek to the highway we relocated approximately 750 ft. of the existing Little Beaver Creek channel utilizing natural stream design criteria and mitigated 1.4 acres of wetlands. Additional features included the design of various stream enhancements to both Little and Big Beaver Creeks including rock vanes, gravel beds, root ball placement and riparian plantings.
The scope of work included over 3000′ of approach roadway as well as R/W Plans, Storm Water Management, Temporary Traffic Control, and Utility Relocation. Surveying services included horizontal and vertical control as well as topographic mapping and hydraulic cross sectioning of the stream. Post design services included shop drawing review.
Highlights
- Natural Stream Relocation
- Stream Enhancements
- Wetland Mitigation