Bureau of Reclamation, Pacific Northwest Region
Major Storage Reservoirs in the Upper Snake River Basin

ANTI - Henrys Fork at St. Anthony, IDWTXI - Willow Creek below Tex Creek REXI - Henrys Fork nr Rexburg, Id LORI - Snake River at Lorenzo, Id SIFI - Snake River nr. Idaho Falls, Id SNAI - Snake River at Blackfoot, Id SHYI - Snake River nr. Shelley, Id SALY - Salt River above Res near Etna, WY GREY - Greys River above Reservoir near Alpine JCK - Jackson Lake at Dam on Snake River near Moran ALPY - Snake River above Res near Alpine, WY PALI - Snake River near Irwin RIRI - Willow Creek below Ririe Dam HEII - Snake River near Heise TEAI - Teton River near St. Anthony BFTI - Snake River near Blackfoot AMFI - Snake River at Neeley, ID MINI - Snake River near Minidoka, ID MILI- Snake River at Milner ISLI - Henrys Fork near Island Park HENI - Henrys Fork near Lake JKSY - Snake River Below Flat Creek, near Jackson, WY FLGY - Snake River near Flagg Ranch LWOI - Little Wood River above High Five Creek WODI - Little Wood River near Carey MIL - Milner Reservoir MIN - Lake Walcott AMF - American Falls Reservoir RIR - Ririe Reservoir PAL - Palisades Reservoir JCK - Jackson Lake Reservoir GRS - Grassy Lake Reservoir ISL - Island Park Reservoir HEN - Henrys Lake Reservoir WOD - Little Wood Reservoir Clickable diagram of USBR reservoir storage in the Upper Snake River Basin
PROVISIONAL DATA - Subject to change

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.
Upper Snake River system is at % of capacity.
(Jackson Lake,Palisades, Grassy Lake,Island Park,Ririe,American Falls,LakeWalcott)
Total space available: AF
Total storage capacity: 4045695 AF

Graph of Total System Storage

Key to Station Codes
Minidoka Project Information
Ririe Project Information
Palisades Project Information