Wyoming State Water Plan, Wyoming Water Development Office
Rafting on Snake River Lake Marie, Snowy Mountains Wyoming Wind River Range picture

STATEWIDE FRAMEWORK PLAN: Updated Data Tables
UPDATED: Data Table

Table 7-1 Average Annual Streamflow and Uses - Normal Condition
Basin State Line Outflow - Natural Conditions1 Depletions of Streamflow to Wyoming Depleted Streamflow Leaving Wyoming3 Wyoming's Remaining Share Under Compact
Irrigation2 Municipal, Domestic, & Stock2 Industrial2 Reservoir Evap2 Total2
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GREAT BASIN
 Bear River   526,000   92,300   1,400   300   5,300   99,300   426,700   187,800 
COLORADO RIVER
 Green River4   2,616,500   401,000   20,900   66,300   121,300   609,500   2,007,000   221,300 
MISSOURI RIVER
 Northeast Wyoming5   240,500   69,000   0   0   23,500   92,500   148,000   9,800 
 Platte River6   1,307,400   477,300   19,300   70,300   213,800   780,700   526,700   0 
 Powder/Tongue River   982,600   184,000   12,300   0   11,300   207,600   775,000   248,100 
 Wind/Bighorn River   4,628,600   1,165,500   9,300   15,700   138,700   1,329,200   3,299,400   2,491,500 
 Yellowstone River7   3,149,600               0   3,149,600   0 
COLUMBIA RIVER
 Snake/Salt River8   3,540,000   122,000   0   0   72,200   194,200   3,345,800   155,000 
Total  16,991,200   2,511,100   63,200   152,600   586,100   3,313,000   13,678,200   3,313,500 
Note: Blanks indicate that information was not presented in the individual basin plans.
  1. Estimates are based on outflow plus depletions from the current river basin plans.
  2. Depletion estimates are from the current river basin plans.
  3. Depleted flows are based on outflow estimates from the current river basin plans.
  4. Depletions for municipal, domestic, and stock include 14,400 acre-feet diverted to the N. Platte for City of Cheyenne use.
  5. Excludes the flows for the Little Missouri and Niobrara Rivers.
  6. The Platte River system is fully appropriated: a water right with a current-day priority cannot be expected to provide a reliable supply. Estimates exclude the flows and depletions from the Horse Creek and South Platte drainages.
  7. Drainage area is within Yellowstone National Park and includes estimates for the Madison, Gibbon, Firehole, and Gallatin Rivers.
  8. Excludes the flows for the Henrys Fork and Teton Rivers.