Both eastbound and westbound bridges will be replaced.
The structures near milepost 40 were first built in 1964. Given that the bridges are located in a floodplain, the design team will look for ways to mitigate risk in the new design.Read More
Just 400 feet upstream, Canyon Road also crosses the Coeur d’Alene River via a historic 1936 bridge owned by East Side Highway District. Given the proximity of the aging structures, ITD and the highway district are combining resources to determine the feasibility of replacing the local bridge along with the I-90 structures.
The Canyon Road bridge is also susceptible to flooding and can no longer support loads above 12 tons (4.5 tons/axle), making it unusable as a detour for interstate traffic. This picture shows conditions in 1996.
These are a few of many factors that will be considered during the feasibility study, and public input will also play a role.