Brown County Highway 5 Bridge Design

Clark Engineering now IMEG provided design and construction phase services for the structure replacement, grading, and interim gravel surfacing for the Highway 5 bridge over the James River. Wear and tear on the existing 242-foot, five-span structure necessitated this replacement. The new structure is a 245-foot, three-span prestressed girder bridge with encased pile bents and integral concrete abutments with sweptback wingwalls. The project also included grading and interim gravel surfacing. 

Clark Engineering now IMEG completed a field survey and hydraulic analysis to comply with FEMA floodplain requirements. This included developing alternatives for lengthening or skewing the structure to address the channel migration caused by the skewed nature of the stream in relation to the structure. 

Brown County
Hecla, SD
Services Provided