DESCRIPTION
This project built on the SRFB funded Braided Reach Restoration Assessment (02-1609N), which identified strategic points in the reach that would serve to reduce intervention impacts while maximizing results. Limiting factors in the reach include flood and low flows, lack of refuge and rearing habitat, and lack of pool habitat. Rearing and refuge habitat have been diminished due to railroad and highway construction, which has reduced overall floodplain area.
The 18 wood structures placed in this this phase consisted of:
a) Wood complexes to provide refuge, create holding pools, and add complexity and edge habitat.
b) Flood fencing at selected locations to increase channel roughness and complexity.
With this suite of projects, we increased edge habitat on the mainstem, reconnected side channels, improved riparian conditions and created pools. River processes were neither changed nor “improved”, but themselves used to improve habitat, in much the same way that habitat is altered in natural systems. Rather than relying on large-scale interventions, the approach used the power of the river to affect habitat creation. In this way, long-term benefits will be realized that build upon the foundations laid down by the completed projects.