Thursday, February 17, 2011

Hemlock Dam Removal

Around the country, more dams are being removed today than are being built. One example of a successful project is Hemlock Dam Removal on the Columbia River system.

This video showed in this year's Wild & Scenic Film Festival, and documents this project:

Of note in this video:
  • Sediment management included excavation of a new channel upstream of the dam and trucking material off-site
  • Site restoration utilized on-site trees removed from the project area as well as additional imported logs
  • Community restoration involving local schools for re-vegetation of the project area
  • Steelhead returned immediately once flows were re-introduced into the restored channel

More information:

Hemlock Dam Removal and Trout Creek Restoration Project
Sediment Impact Analysis for the Proposed Hemlock Dam Removal Project