US Army Corps of Engineers
Walla Walla District

Section 10 Waters

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Section 10 Waters within the State of Idaho

The Rivers and Harbors Act of 1899 requires a Department of Army permit be issued for specific activities on navigable waters of the United States. Examples of permitted activities include construction, excavation, deposition of materials in, over or under navigable waters, or any work that would affect the course, location, condition or capacity of navigable waters.

Section 10 Waters (map) 

Under the Rivers and Harbors Act, the Walla Walla District is responsible for the following navigable waters within the State of Idaho:

Bear Lake:
Portion within the State of Idaho

Clark Fork River:
Mouth upstream to River Mile 4.0

Clearwater River:
Confluence with the Snake River upstream to River Mile 40.5 (mouth of North Fork Clearwater River)

North Fork of Clearwater River:
Confluence with the Clearwater River, including Dworshak Reservoir, upstream to River Mile 57.9

Kootenai River:
Bonners Ferry to the Canadian border

Lake Pend Oreille:
Albeni Falls Dam to elevation 2062.5 NGVD

Pack River:
Mouth upstream to River Mile 1.5

Pend Oreille River:
Idaho-Washington border upstream to Albeni Falls Dam

Salmon River:
Confluence with the Snake River upstream to River Mile 259 (City of Salmon)

Snake River:
Idaho-Washington border to River Mile 445.5