GRAIP Watershed Studies | Water and Watersheds (W&W) Program - USDA Forest Service Science

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WATERSHED STUDIES

Watershed Studies

GRAIP watershed studies are used to characterize the level of risk associated with the road network in critical watersheds. GRAIP provides site specific predictions of road surface erosion, sediment delivery, hydrologic connectivity, stream crossing failure and diversion risk, as well as maps of landslide and gully initiation risk. The GRAIP outputs empower land managers with the site specific data required to prioritize restoration efforts and to maximize benefits to the aquatic system.

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OREGON

Case Study Area	Collaborators
North Fork Siuslaw, central Oregon coast	Siuslaw National Forest, USFS Region 6, Rocky Mountain Research Station
Wall Creek, eastern Oregon	Umatilla National Forest, EPA, Rocky Mountain Research Station
Gerber Creek, southern Oregon	Klamath Falls BLM
Spencer Creek, southern Oregon	Klamath Falls BLM
Lake Creek, western Oregon	Eugene BLM

IDAHO

Case Study Area	Collaborators
Granite, Jungle, Bear, and Lick Creeks, west-central Idaho	Payette National Forest, Rocky Mountain Research Station
Upper East Fork Weiser River and Boulder Creek, west-central Idaho	Payette National Forest, Rocky Mountain Research Station
Beaver Creek, northern Idaho	Idaho Panhandle National Forests
Upper Lolo Creek, north-central Idaho	Nez Perce Tribe
South Fork Salmon River, central Idaho	Boise National Forest, EPA, Rocky Mountain Research Station
Middle Fork Payette River, central Idaho	Boise National Forest, EPA, Rocky Mountain Research Station
Bear Valley Creek, central Idaho	Boise National Forest, EPA, Rocky Mountain Research Station
Grouse Creek, central Idaho	Payette National Forest
Monumental Creek, central Idaho	Idaho Department of Environmental Quality, Rocky Mountain Research Station

MONTANA

Case Study Area	Collaborators
Southwest Crown of the Continent Watersheds, western Montana	Lolo National Forest, Helena National Forest, Flathead National Forest, Great Northern Landscape Conservation Cooperative, Southwestern Crown Collaborative, US Geological Survey, Rocky Mountain Research Station

CALIFORNIA

Case Study Area	Collaborators
Moonlight, northern Sierra Nevada (Maps download)	Plumas National Forest, Rocky Mountain Research Station
Power, central Sierra Nevada	Eldorado National Forest, Rocky Mountain Research Station

WASHINGTON

Case Study Area	Collaborators
South Fork Stilliguamish River, northwestern Washington	Mt. Baker-Snoqualmie National Forest, USFS Region 6, Rocky Mountain Research Station
Deer Creek, northeastern Washington	Colville National Forest, Rocky Mountain Research Station