Key Management Question 3
Bridge Creek is listed as one of 11 tributary Major Spawning Areas critical to the recovery of the Lower John Day mid-Columbia steelhead population and has high restoration potential. Habitat factors limiting steelhead productivity on Bridge Creek include an overall lack of habitat diversity, low summer flows, and high stream temperatures.
Beaver Dam Analogs (BDAs) are being installed to mimic and encourage dam building activities of beaver. Phase I of treatment installments occurred in 2009 and post-restoration monitoring has shown improvements in in-channel condition and the productivity of steelhead.
Status: In Progress
Finding and Uses
Initial findings from Bridge Creek show that the installation of Beaver Dam Analogs (BDAs) increased juvenile steelhead density, survival, and production in incised streams.
This novel and relatively inexpensive restoration approach could greatly improve the habitat of listed salmon and steelhead in the enormous number of miles of streams experiencing incision (or other forms of habitat degradation) in the Columbia River Basin.