Work to construct nearly $17 million in infrastructure and safety improvements on US-12 in north-central Idaho will begin Monday, April 16. Work is scheduled to be completed in October.
Improvements include the replacement of two old bridges over Maggie and Fish creeks and the repaving of more than 50 miles of the highway between Lowell and the Idaho-Montana border. The Maggie Creek Bridge was built in 1949, and the Fish Creek Bridge in 1952.
Construction will begin first on Fish Creek Bridge on April 16, and work is expected to start on Maggie Creek Bridge by April 30. Paving work is not scheduled to start until June.
Temporary signals will facilitate alternating, one-way traffic over the bridges during construction. Travelers can expect short delays during bridgework, and once paving starts, they should expect delays of more than two hours throughout the entire corridor.
Concrete Placing Company will replace Fish Creek Bridge, and Braun-Jensen Inc. will replace Maggie Creek Bridge for a combined cost of $3.6 million. Knife River Corporation will repave the highway for $13.3 million.
To learn more about construction and subscribe to updates, visit itd.idaho.gov/US12. For immediate construction impacts on this and other routes, visit 511.idaho.gov.