Drivers traveling on State Highway 3 will experience lane restrictions and possible delays starting today, as construction begins to replace a bridge located just north of the State Highway 6 Junction. The bridge, which was originally built in 1934, is being replaced due to its age and the need for ongoing maintenance.
During the construction period, traffic will be reduced to one lane. A temporary signal will manage alternating traffic flow, and a shoofly detour—a temporary bypass road—will direct vehicles around the work zone.
The $2 million project aims to improve both safety and functionality along this section of SH-3. The new bridge is designed to handle heavier loads and increased traffic volumes. Additionally, the road will be widened to include five-foot shoulders for added safety, and updated guardrail will be installed along the improved segment.
“These updates are vital for ensuring the long-term safety and reliability of the route, especially for the freight and logging industries that rely on it every day,” said Project Manager Jacob Edlund.
The project is scheduled for completion by late fall this year. Lane restrictions and delays are expected throughout the summer. Drivers are encouraged to check Idaho 511 for current information about road conditions and travel impacts at https://511.idaho.gov/.
