The Oregon Department of Transportation says motorists should expect delays of up to 20 minute Monday through Wednesday this week and up to an hour Thursday and Friday at the Chenoweth Creek Bridge on the Historic Columbia River Highway. The delays will take place between 7 a.m. and 5 p.m. as crews begin work to replace the bridge about a quarter mile west of The Dalles city limits. The Chenoweth Creek Bridge will require a full closure for about three weeks in August while the bridge is being replaced. When that occurs, traffic on the Historic Columbia River Highway near The Dalles will be detoured through the Rowena Exit on Interstate 84. Crews with Wildish Standard Paving, under contract with ODOT, are continuing work on the $7.4 million project to repair and replace three bridges on the Historic Columbia River Highway between Mosier and The Dalles.