Lower Peshastin Assessment Unit
Reach Rank: 1
Priority Actions: restore reach function, address limiting factors.
Priority Species: Spring Chinook, Steelhead
Priority Life Stages: Spawning and incubation

Limiting Factors:
Bank Stability, Channel Stability, Cover- Wood, Summer Base Flow, Floodplain Connectivity, Off-Channel- Side-Channels, Pool Quantity and Quality, Riparian-Disturbance, Riparian-Canopy Cover, Riparian, Temperature- Rearing, Coarse Substrate, Percent Fines and Embeddedness.

Priority Action Categories:
Bank Restoration, Channel Complexity Restoration, Channel Modification, Fine Sediment Management, Floodplain Reconnection, Instream Flow Enhancement, Riparian Restoration and Management, Side Channel and Off-Channel Habitat Restoration, Upland Management, Water Quality Improvement.

The lower Peshastin restoration project seeks to address the most important limiting factors (coarse substrate, cover -wood, floodplain connectivity, off channel and side channels, pool quantity and quality, riparian canopy cover) by: increasing mainstem channel length by 200', increasing channel sinuosity by 15%, lowering gradient, increasing side channel length by 1,200', increasing channel width (Q2) by approximately 100', increasing floodplain wetted area (Q2) by 3.4 acres, increasing deep pools from 0 to >3, planting 2.5 acres of riparian vegetation, lessening mean substrate size, and increasing key pieces of wood from 0 to >100. These actions will benefit multiple life stages for spring Chinook and steelhead including adult migration, holding and spawning, fry colonization, and summer and winter rearing.

In addition to Bonneville Power Administration, we are grateful to our partners at the Salmon Recovery Funding Board, Washington Department of Fish and Wildlife, Washinton Department of Ecology, Upper Columbia Salmon Recovery Board and Bureau of Reclamation.

This is a final contract and will not be renewed.