Apiary Road in Columbia County will be closed in both direction from Aug. 27 through Sept. 29 while the Columbia County Road Department replaces a metal culvert at milepost 16.1, according to a release from the road department.
Drivers are recommended to take detour routes along Scappoose-Vernonia Highway and Canaan-Meisner Road.
The culvert will be replaced with a “bottomless concrete structure” that will allow for a more natural stream flow for organisms that pass through.
Work on this culvert and others is expected to cause a 50 percent increase in the Nehalem basin salmon population, according to the Upper Nehalem Watershed Council. More than 80 culverts have been replaced in the last 12 years, the release said.
The culvert replacement will also reduce stream bank erosion that the Road Department said could eventually impact the roadway.
Salmon and other spawning fish use culverts to pass underneath roads and other obstructions, but those man-made passageways can fill with debris over time and must be occasionally replaced.