Local, whiskey jack over boyer slough BR, bonner CO

The Federal Highway Administration awarded the Idaho Department of Transportation $841,000 on August 31, 2026, under the Bridge Formula Program (CFDA 20.263) to replace the Whiskey Jack Bridge over Boyer Slough in Bonner County, Idaho. The single-access bridge is in fair but deteriorating condition, functionally obsolete, and measuring only 20 feet curb-to-curb. Wooden guardrails provide inadequate vehicle containment, and the drop to water is significant and deep enough to submerge a vehicle in the event of an accident. The narrow width creates operational constraints—vehicles must stop and take turns crossing when meeting oncoming traffic. Work is scheduled for completion by September 30, 2032, and will be performed in Idaho. The Bridge Formula Program apportions funding to states via formula based on the relative costs of replacing bridges in poor condition and rehabilitating bridges in fair condition, for use on highway bridge replacement, rehabilitation, preservation, protection, or construction projects on public roads.

Project description

For the work to replace the single access point bridge which is in fair but deteriorating condition, is functionally obsolete, is narrow (20FT curb-to-curb). Wooden guardrails are unlikely to stop a vehicle and the drop to water is significant, and deep enough for a vehicle to be submerged in event of an accident. The bridge is far too narrow for the number of vehicles at this point, and vehicles stop and take turns driving over the bridge when there is oncoming traffic.