Aquatic Restoration Monitoring

large woody

Projects replacing large woody debris in streams are monitored by SPU staff.

The aquatic restoration program in the HCP consists of several different categories of restoration activities: large woody debris (LWD) placement, stream bank stabilization, streamside revegetation, and stream crossings for fish and peak flow passage. Although all aquatic restoration projects focus on modifications to physical processes within the aquatic system, we conduct project effectiveness monitoring to determine if desired habitat characteristics and associated biological responses are achieved and ultimately sustained by natural watershed processes.

There are numerous indicators established to monitor aquatic restoration project effectiveness. They vary between project types, depending on project-specific objectives and conditions. Frequently used parameters include:

  • Pool frequency and residual pool depth
  • LWD frequency and volume
  • Bank erosion
  • Percent cover (shade)
  • Surface particle size distribution (D50)

View aquatic restoration project reports.