Bureau of Reclamation, Pacific Northwest Region
Major Storage Reservoirs in the Boise & Payette River Basins

Boise River system (Anderson Ranch, Arrowrock, Lucky Peak) is at  52 % of capacity.
Total space available:        457643 AF
Total storage capacity:       949700 AF
Natural Flow:                    836 CFS

Payette River system (Cascade, Deadwood) is at  62 % of capacity.
Total space available:        304221 AF
Total storage capacity:       800452 AF
Natural Flow:                   1362 CFS

Graph of Boise System Storage

Graph of Payette System Storage

Capacity of Lake Lowell based upon restricted operating elevation of 2526.5 feet, capacity 119,400 acre-feet.
Average daily streamflows indicated in cubic feet per second.
Reservoir levels current as of midnight on date indicated.
Click on gaging stations (red dots) for streamflow hydrographs.

Key to Station Codes
Boise Project Information