State highways cross streams and rivers in thousands of places in Washington State, which can impede fish migration. WSDOT has worked for nearly three decades to improve fish passage and reconnect streams to help keep our waterways healthy. WSDOT Fish Barrier Correction is a priority. Learn more in the latest Fish Passage Annual Report (pdf 8.4 mb) and our new Video.
Before Photo
This undersized double culvert at North Fork Issaquah Creek was a barrier to fish passage.
After Photo
The new culvert at North Fork Issaquah Creek, built in 2017, provides access for Chinook, sockeye, and coho salmon, steelhead, searun cutthroat, and resident trout.
