As part of the Salmon Superhighway, RDG worked with the Nestucca, Neskowin & Sand Lake Watersheds Council and the Tillamook County Public Works Department to provide fish passage design and construction oversight. The existing culvert was a fish passage hindrance at most flows and was located on a significant salmon bearing stream near Tillamook. A streambed simulation design was developed and RDG helped manage the bidding and construction administration on behalf of the Tillamook County Public Works.
The project came in on schedule and budget using a local construction contractor. Monitoring of the culvert during the subsequent year found a pair of chinook salmon spawning within the culvert barrel proving the design was sound!
RDG PROJECT MANAGER
Scott Wright, PE
Nestucca, Neskowin & Sand Lake Watersheds Council
Tillamook Public Works Department
Topographic and bathymetric surveys
Fish passage culvert design
Construction bid documents