SMA-7611, W bridge ST BR, blackfoot

The Idaho Department of Transportation received a $650,000 Formula Grant award from the Department of Transportation Federal Highway Administration under the Highway Planning and Construction program (CFDA 20.205) on February 12, 2021. The funding will support replacement of the West Bridge Street Bridge over the Snake River in Blackfoot, Idaho. The existing 1936 steel truss bridge is structurally deficient with vehicle damage, delamination, spalling concrete, and settled/twisted piers. The project will remove the existing bridge and construct a new bridge adjacent to the current structure to better serve transportation needs.

Project description

This project will replace the west bridge street bridge over the snake river in blackfoot because the existing bridge (97611A) does not serve the needs of bingham county, the city of blackfoot or various industrial interests. The existing bridge, built in 1936 is a steel truss bridge with significant vehicular damage to the steel truss superstructure, large areas of delamination and spalled concrete and settlement and twisting of piers. The project would remove the existing bridge and build a new bridge adjacent to the current structure.