Statewide Framework Plan Updated Data Tables
2007 Data

Estimated Average Annual Irrigation Water Requirement (IWR) from Most Recent Update
River Basin	Total IWR	Active Irrigated Lands	Unit IWR	Total IWR			Unit IWR
				Wet	Normal	Dry	Wet	Normal	Dry
	ac-ft	acres	ac-ft/ac	ac-ft			ac-ft/ac
Bear (2011)1	99,401	64,000	1.54
Green (2010)4	446,718	334,500	1.34	486,531		406,905	1.34		1.22
Northeast (2003)	103,000	77,000	1.33	95,000	103,000	126,000	1.23	1.34	1.64
Platte (2006)2	658,000	612,000	1.08
Powder/Tongue (2002)	238,000	161,000	1.47	217,000	238,000	289,000	1.35	1.48	1.8
Snake/Salt (2003)	126,000	99,000	1.27	122,000	126,000	132,000	1.23	1.27	1.33
Wind/Bighorn (2010)1	1,178,600	634,300	1.86
Total (2007)	2,940,000	1,944,000	1.473
Values in RED indicate basins updated since previous statewide plan.  1  Bear and Wind/Bighorn River Basin Plans did not calculate normal, dry, and wet year scenarios but overall averages.  2  Platte methodology does not afford calculation of irrigation water requirement; values estimated by applying average CU:IWR ratio from other basins.  3  Average unit IWR.  4  Normal CIR was not calculated in this Agricultural Use Memo, WYRAG Memo, 2009. Total IWR/CIR and Active Irrigated Lands are both average values of the wet and dry year numbers.