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North Fork John Day Watershed Council
The Deep Creek Culvert project had the ambitious goal of improving stream function and fish passage through stream channel realignment and culvert replacement. The stream had had to flow in an unnatural right and left turn in the area of the Deep Creek culvert, making fish passage difficult. This streamflow pattern also didn't accommodate high water events and thus the culvert had failed repeatedly in the past.
Field work started July 15, 2014, and ended with the in-stream work window at the end of August 2014.
Components of this project included:
Culverts were replaced by concrete overpass structures which provide unimpeded year-round flow and thus fish passage, and handle 100 year flow events, preventing failure and destructive erosion. The road had been moved in the past and was returned to its original location at the top of the project, utilizing the existing junction with County Road 24 to maintain a safe intersection. This design provides a wide floodplain and riparian area while allowing public access to the area.
By shifting the stream channel back into its more natural position, our partners:
Top: Old culvert.2nd: Map of project area.3rd: Concrete structure that replaced a culvert.Bottom: Road crossing concrete structure.
For complete reports on this and other OWEB projects, please search OWEB's Grant Management System (OGMS).
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