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TECHNICAL MEMORANDUM


Subject:Wind/Bighorn River Basin Plan

Task 2A – Agricultural Water Use and Diversion Requirements
Date:January 2003 (Revised May 2003)
Prepared By:MWH Americas, Inc.

This Technical Memorandum discusses the existing agricultural water use patterns and calculation of Full Supply diversion requirements for existing lands for the Wind/Bighorn River Basin Plan. The document fulfills a portion of the reporting requirements of Task 2A from the original contract and is supplemental to Task 2A Technical Memorandum Water Supply and Demand in the Wind/Big Horn Basin (BRS, 2002).

This technical memorandum contains the following sections. Within each section are tables and figures containing the data for each of the main study area basins.

Section
Section 1 - Introduction
Section 2 - Historical Diversions
Section 3 - Estimated Historical Diversions
Section 4 - Full Supply Diversion Requirements
4.1 Irrigated Lands
4.2 Theoretical Crop Irrigation Requirement
4.3 Cropping Patterns
4.4 Full Supply Crop Irrigation Requirement
4.5 Calculation of Full Supply Diversion Requirements
Section 5 - Summary and Conclusions
Section 6 - References
Appendix A Diversion Data

Section 1 - Introduction

A key component of the Wind/Bighorn River Basin Plan is the development of a river basin model for the study area. The primary purposes of the river basin model effort are to identify and quantify water uses that experience shortages during dry, average and wet years; to determine the impact of Tribal futures projects; and to identify and quantify the amount of water that is available for future water development. The model runs on a monthly time step and utilizes dry, average and wet-year hydrology developed from a 1973-2001 period-of-record.

This memorandum discusses the development of agricultural water use and diversion requirements that were used in the model. Development of the hydrologic data is presented in the Task 3A Technical Memorandum Surface Water Hydrology (MWH, 2002). The construction, calibration and operation of the spreadsheet models is more fully described in the Task 3B/3C Technical Memorandum Spreadsheet Model Development and Calibration (MWH, 2003), while results of the model are presented in the Task 3D Technical Memorandum Available Surface Water Determination (MWH, 2003).

Agricultural water use represents the vast majority of water use within the Wind/Bighorn River Basin planning area. Because of this, accurate estimation of agricultural water use within the basin is essential in producing an accurate model and calculating water availability. Water use by agriculture is a function of many physical and managerial functions including the quantity of land irrigated, crop types, conveyance mechanisms, irrigation types and management styles.

The model requires the historical diversion requirement for each point of diversion. Then, the model calculates the historical amount of consumptive use using irrigation efficiencies and returns non-consumptive demands back to the river according to surface water accretion functions, or lags. Then, because the amount of land historically irrigated is less than the amount of land with water rights, full supply diversions are modeled, where all irrigated lands with water rights are supplied from the existing water supplies. The development of historical diversions (both measured and estimated) as well as fully supply diversions are discussed in the following sections.

Section 2 - Historical Diversions

Historical diversions are used as input for the model calculation and calibration process. Therefore, based upon criteria used in previous river basin plans, historical diversion records were obtained for all diversions greater than 10 cfs. Diversions greater than 10 cfs are explicitly included in the model as separate diversions, while those less than 10 cfs are “lumped” with other small diversions less than 10 cfs that divert in the same reach of stream. Diversion records and the reduction of the diversion records for use in the model is discussed in this section. Estimated historical diversions for those diversions without diversion records are discussed in Section 3 – Estimated Historical Diversions.

Diversion records were collected from the State Engineer’s Office Division 3 Hydrographer’s Reports and USGS gaged flow, as detailed in the Technical Memorandum Wind/Bighorn River Basin Plan Irrigation Diversion Operation and Description (BRS, 2003b). Two types of records are available:

  1. Daily flow data available from USGS or SEO gaging stations;
  2. Instantaneous flow data from SEO spot checks of diversions.

The reduction of daily data simply used the daily average diversion flow rate and converted it to a volumetric amount. Any missing daily data was estimated from the available data before and after the missing data using linear interpolation. Then, the daily volumetric amounts were summed for a monthly diversion. For most data in the Hydrographer’s reports, this is already done and these values were used.

The reduction of spot data involved a similar process. Data for days not measured was linearly interpolated from the available data. Starting and ending dates for irrigation seasons were taken from Consumptive Use and Consumptive Irrigation Requirements in Wyoming (Pochop, 1992). The daily flow values were then converted to monthly volumes and summed for each month.

Monthly diversions estimated from the daily and spot data were used to develop dry, average and wet year diversions. The development of dry, average and wet years, as well as the index gages for each basin are described in Technical Memorandum 2A/2B Surface Water Hydrology(MWH, 2002). In general, the 1973-2001 period-of-record was used for hydrologic calculations. Based upon selected index streamflow gages, which generally represent undepleted flows, dry years were defined as the driest 20 percent of years, average years were the middle 60 percent, and wet years were wettest 20 percent of years, as defined by the total annual flow at the gage.

To reduce diversion data, the monthly average of all available diversion data was taken for all years within the hydrologic condition. Unlike the gaged flow records, years without data were not filled. Therefore, occasionally, there are diversions with records in one hydrologic condition and not another. In this case, the estimated actual diversion methodology was used for the missing data. This primarily occurred only for smaller diversions.

Occasionally, calibration of the model required that the measured historical diversions be reduced to maintain mass balance in the model. This was accomplished using the same techniques as described in Section 4 – Full Supply Diversion Requirements.

A summary of the measured data as used in the model for each basin is presented in Table 2-1, Table 2-2 and Table 2-3, while the monthly measured diversion data is shown in Appendix A. There are very few diversions with long periods-of-record within the Wind River Basin, especially on the Wind River Reservation. It should be noted when reviewing the historical diversion data that some of the measurement points presented are at locations within a delivery system and do not necessarily represent additional diversions from the river. For instance, a large portion of the Dry Creek Canal diversion comes from the Dinwoody (feeder) Canal. Therefore, the values presented in the tables cannot simply be summed to find the diversion for the entire basin. Those canals that act as feeder canals for other diversions must be noted and the appropriate volume of water taken out of the receiving canal. This can be difficult for those feeder canals that also deliver water to irrigated lands along their routes and thus, this has not been done for presentation purposes. However, these are taken into account in the modeling through the actual structure of the model by setting return flow values and locations so that the appropriate amount of water is delivered to the receiving canal.

Table 2-1. Summary of Historical Diversions for Yellowstone and Clarks Fork Basins


Annual Historical Diversions (ac-ft)
Sub-BasinDiversion NamePeriod-of-Record
Average
Dry-Year
Average
Normal-Year
Average
Wet-Year
Average
YellowstoneN/A------------
Clarks ForkBennettCreek3,0091,9063,0153,588
Little Rocky3,3502,4633,5402,931

Table 2-2. Summary of Historical Diversions for Wind River Basin


Annual Historical Diversions (ac-ft)
Sub-BasinDiversion NamePeriod-of-Record
Average
Dry-Year
Average
Normal-Year
Average
Wet-Year
Average
Upper WindDinwoody Canal21,367(1)31,3416,052
Dry Creek Canal50,82555,66750,58047,375
Johnstown Canal6,4907,6825,9276,022
LeClair Canal76,70372,15976,35175,901
Lefthand Canal7,40510,2576,3106,087
Riverton Valley Canal33,47236,16032,49832,471
Upper Wind River A Canal17,29619,55718,38015,526
Wyoming Canal355,542294,587370,754353,173
Little WindCoolidge Canal26,94026,940(1)(1)
Ray Canal53,11944,74052,80852,823
Sub-Agency Canal28,97028,970(1)(1)

Notes:
  1. No data available for the hydrologic year. Diversion estimated using techniques described in Section 4 -
    Full Supply Diversion Requirements.

Table 2-3. Summary of Historical Diversions for Bighorn River Basin


Annual Historical Diversions (ac-ft)
Sub-BasinDiversion NamePeriod-of-Record
Average
Dry-Year
Average
Normal-Year
Average
Wet-Year
Average
Upper Bighorn/
Owl Creek
Ackerman1,5161472,0821,223
Baylor-Purvis-Thompson-Farmer1,5211811,5611,890
Big Horn Canal148,437134,455146,448158,822
Bluff Canal33,37531,54933,77432,098
Brassington2,1666,0618331,511
Caledonia1,9449572,9291,605
Chessington-Wilson1,5143681,5291,706
Hale1,185641,2121,586
Highland Ditch9,484(1)9,2569,644
Highland Hanover30,40934,66032,10328,500
Kirby Canal18,41616,77717,93220,967
Lower Hanover Canal48,81049,62247,70650,198
Lower Lucerne Canal11,18312,57111,00310,699
Padlock1,7817801,8622,118
Sliney and Mikkleson/Sliney No. 13,2689223,1223,781
Tenderfoot2,0234152,5951,723
Upper Hanover Canal151,046139,552149,403155,958
Upper Lucerne Canal10,17711,24110,2529,556
Woodward-Johnson1,4543191,4231,844
NowoodAnita6,0896,7056,2645,043
Anita Supplemental2,0482,9001,9701,453
Bernstein2,3422,7692,3461,896
Big Bear Enl.2,4692,8152,3502,839
Elk2,1682,7222,0832,106
George & Bayne2,5903,4292,4712,199
Go Ahead2,2852,6852,2621,985
Harmony2,7593,7192,6962,056
Highland3,4914,0963,4463,210
Shafer3,1083,1753,3492,270
Van Alstine (Avent)7,1788,3287,0786,738
Western2,0492,1962,2461,485
Greybull/DryAgrarian8,6635,1989,1339,856
Arnold2,7761,7582,9703,046
Ashworth #22,7761,7582,9703,046
Avent4,6734,3384,9954,446
Beck and Allen5,4735,6595,2255,568
Bench Canal55,40839,43556,97163,395
Borner & Harvey (Borner)1,8471,8411,9141,769
Brown (Croxall and Brown)4,8774,2604,9755,074
Butte1,0517521,341834
Cheeseman2,8781,9313,1912,942
Cockins2,7782,4093,1222,522
Dodge2,8442,0203,1442,877
Dyer3,3842,1803,3264,043
Fairview11,7944,33910,12013,865
Farmer's Canal53,14943,69053,71758,422
German3,7832,3873,8374,423
Greybull2,6679372,9493,182
Hurlbut3,1274,5142,6752,988
J.F.W.5,8274,4975,1336,743
Jimmerfield2,2161,4292,6572,049
Jimmerfield-Roach4,5733,4124,5584,777
Keystone4,7113,4184,8135,208
Meyers2,5951,7492,6003,009
Moss & Long Hollow1,0059181,211798
Only Chance1,7463991,6572,532
Pappapau3,7754,1964,5142,616
Perkins9,6076,8028,93110,425
Rocky2,7661,6203,1382,873
Ruby1,6238432,0321,507
Sandstone6,7683,9957,5177,332
Snyder (Nichols)2,6941,7352,7963,044
T.L.2,9241,9813,1013,185
Tatman-St. Joe7,7514,3876,9108,530
Watson1,6041,3191,8781,399
Whitney Gleaver699580779671
Winkle & Benbrooke2,1111,1962,3952,204
Woods and Burnett8,2336,5428,8978,462
ShoshoneCody Canal66,11752,67466,89272,828
Deaver-Frannie Canal89,49177,36382,38193,265
Elk Lovell Canal99,69488,709102,861103,419
Frannie Canal263,069---256,405277,262
Garland Canal276,409247,305280,015245,658
Garland-Frannie263,069---256,405277,262
Globe Canal15,99714,11016,08617,111
Heart Mountain Canal205,770190,665219,858177,985
Hunt Canal33,93231,82634,38833,401
Lakeview Canal55,30044,88655,66361,713
North Fork Ditch9,4119,2329,7708,845
Sidon Canal86,93585,83089,49078,104
Willwood Canal100,93092,335103,70396,929
Wilson & Mckissack5,6263,2085,5976,472
Lower BighornAnita Ditch71,73156,22376,536(1)
Bernie1,1251,1521,158901
Dunshee1,9682,3362,1681,386
Frieze4,0013,2334,1414,244
Hatten1,3599031,4521,486
High Line2,4311,8412,4332,947
Kershner2,3602,1072,2302,860
McDonald (Shell Canal)24,01420,65424,25225,544
Porter6,8906,4356,7637,366
Shell Canal17,08413,72017,85818,005
Whaley6,4815,9786,3797,113
Whaley Cem. (Howard Enl. Whaley)4,4234,0074,2495,369

Notes:
  1. No data available for the hydrologic year. Diversion estimated using techniques described in Section 4 -
    Full Supply Diversion Requirements.

Section 3 - Estimated Historical Diversions

Because diversion records were not available for many of the smaller diversions within the study area, and because some diversion records were not obtained (those that did not meet the 10 cfs criteria), estimated historical diversions were developed. The quantification of estimated historical diversions for those irrigated lands without historical diversion records took place in two parts:

  1. Develop the potential estimated historical diversion for the point of diversion given the irrigated lands and the consumptive use/diversion requirement calculations using the methodologies described below.

  2. Adjust the estimated historical diversion using the model calibration procedures as described below.

The development of estimated historical diversion requirements for input into the model was performed in the same manner as described in Section 4 - Full Supply Diversion Requirements.

The calibration procedure, as more fully described in Task 3B/3C Technical Memorandum, Spreadsheet Model Development and Calibration (MWH, 2003), was used to adjust the estimated historical diversions. This calibration procedure utilizes the estimate of water availability at the point of diversion and compares it with the estimated historical diversion. If the estimated historical diversion is less than the amount of water available at the point of diversion, then the estimated historical diversion is not adjusted. If the estimated historical diversion is more than the available flow at the point of diversion, then the estimated historical diversion is adjusted so that it can take no more than the available streamflow. These adjustments are shown on the “Historical Diversions” worksheet within each model. See the Task 3B/3C Technical Memorandum, Spreadsheet Model Development and Calibration (MWH, 2003) for further information on the model and calibration process.

Section 4 - Full Supply Diversion Requirements

Full supply diversion requirements are based on the theoretical consumptive use and system efficiencies for each of the points of diversion. In general, the full supply diversion requirement is equated to the theoretical maximum diversion requirement as given in the following equation.

Full Supply Diversion Requirement = (Area x CIR)/Overall Efficiency

Where:
Area = Area of Land that is Irrigated (acres) – Described in Section 4.1
CIR = Crop Irrigation Requirement (feet) – Described in Section 4.2
Overall Efficiency = Overall Irrigation Efficiency (%) – Described in Section 4.3

Each of these factors is described in the following sections.

4.1 Irrigated Lands

Mapping of irrigated lands within the basin was performed by the project team. Irrigated lands mapping is discussed more thoroughly in the Task 2A Technical Memorandum Wind/Bighorn Lands Mapping and Water Rights Data (TriHydro, 2003). This mapping was used for determining the area of land irrigated in each sub-basin model.

The irrigated lands mapping was attributed in the GIS as Irrigated Land (IRR), lands with Water Rights (Water Rights), man-made riparian (MM RIP) and sub-irrigated (SUB IRR) (Tri-Hydro, 2003). Islands of non-irrigated lands within larger irrigated areas, or polygons within polygons in the GIS database, were also mapped.

A summary of the irrigated lands is shown in Table 4-1. As shown in Table 4-4 (Section 4.3 of this report), the USDA estimates approximately 344,000 acres of irrigated lands while the Wyoming Agricultural services estimates approximately 354,000 acres of irrigated lands within the study area. Table 4-1 shows approximately 561,000 acres of irrigated lands with an additional 125,000 acres of lands with water awards. There are many reasons for the differences in estimates, including the non-reporting of irrigated lands by many farmers, and the fact that some of the lands could have been fallow during the reporting year.

Table 4-1. Summary by Attribute of Irrigated Lands Mapping
CountyIrrigated
Lands
(acres)
Man-Made
Riparian
(acres)
Sub-
Irrigated
(acres)
Lands with
Water Awards
(acres)
Total
(acres)
Big Horn167,66909,9150177,583
Fremont154,8292,3853,155122,330282,700
Hot Springs24,3890323,13127,552
Natrona55101830734
Park162,77206,4400169,212
Washakie50,93400050,934
Total561,1442,38519,726125,461708,716
Source:
  1. Source: Reduction of Irrigated lands database (TriHydro, 2003).
  2. Definitions Irrigated Land – Lands irrigated with a valid water right.
    Man-Made Riparian – Non-farmed riparian areas receiving irrigation return flows as classified by the USBR (these were classified as sub-irrigated in the final GIS attribution).
    Sub-Irrigated Lands – Lands irrigated from a sub-surface source due to water received from neighboring irrigated lands.
    Lands With Water Awards – Water futures awarded with a 1968 priority.
  3. Acreages shown in table include those in the Popo Agie basin.

Table 4-2 presents a summary of the mapped irrigated acreage by county within the Wind/Bighorn River Basin Plan study area as used in the model. The following should be noted regarding the development of the modeled acreage:

  • For purposes of the modeling analysis, sub-irrigated lands were not explicitly included within the model. The consumptive use of sub-irrigated lands is simply accounted for in the gain/loss calculations. Therefore, their consumptive use is implicit within the model calculations.

  • The Popo Agie River Basin was not included within the modeling of the Wind/Bighorn River Basin Plan.

  • Based upon the scenarios run by the model, the Tribal Futures lands were separated out from the historically irrigated lands and included separately. Tribal Futures projects are discussed in other Technical Memoranda.

  • Man-made riparian areas were modeled because they are a consumptive use within historical diversions (in other words, historical diversion records include diversions made to meet consumptive use requirements of man-made riparian areas). Therefore, man-made riparian areas should be accounted for in the historical diversion requirements and in the Full Supply diversion requirements. The man-made riparian areas are all mapped within the Midvale Irrigation Project.

The remaining portion of this Technical Memorandum discusses historical and full supply diversion requirements for existing irrigated lands. Full Supply diversion requirements for Tribal Futures projects and any other potential irrigation development are discussed in Technical Memorandum 5A - Agricultural Water Demands and Projections (BRS, 2003a).

Table 4-2. Modeled Irrigated Acreage
CountyIrrigated Lands
for Full Supply
Scenario (2)
(acres)
Futures
Projects
(acres)
Total
(acres)
Big Horn164,4040164,404
Fremont (1)196,50152,667249,168
Hot Springs27,465027,465
Natrona5510551
Park161,0990161,099
Washakie50,405050,405
Total600,42652,667653,093
Notes:
  1. Source: Reduction of Irrigated lands database (TriHydro, 2003) as used in sub-basin modeling.
  2. Irrigated lands derived as follows:
    530,606 acres: Irrigated lands within model study area
    2,385 acres: Man-made riparian within model study area
    67,684 acres: Lands with water rights within model study area minus Futures Projects
  3. Model Study Area: Wind/Bighorn Basin minus Popo Agie Basin, Clarks Fork Basin, Yellowstone Basin and Madison/Gallatin Basin

4.2 Theoretical Crop Irrigation Requirement

Crop consumptive use requirement is the maximum water use of a well-watered crop under optimum growing conditions (Pochop; et al, 1992). A portion of the crop consumptive use is met by effective rainfall (or rainfall that reaches the root zone and meets a portion of the consumptive water requirement before occurring as surface runoff). The portion of the crop consumptive use that is not met by rainfall is referred to as the Crop Irrigation Requirement (CIR). Actual conditions often vary from the theoretical CIR for a variety of reasons, such as the micro-climates at the site that may be different from the climate station, variations in genetics of different strains of the same crop, and more likely, varying soil types. However, CIR gives an estimate of the amount of water that is required to produce a crop under ideal conditions on a system-wide basis.

As has become a standard for use in the WWDC river basin plans, the crop irrigation requirements presented in Consumptive Use and Consumptive Irrigation Requirements – Wyoming (Pochop, et al, 1992) were used in this analysis. The study utilizes 1951 – 1990 climatic data to calculate CIR for several crops and climate stations throughout the study area. Because climatic dry, average and wet periods in summer months during irrigation are often different than the dry, average and wet periods in the winter that produce runoff, the average CIR was used for all three hydrologic conditions.

There are 13 climatic stations within the Wind/Bighorn River Basin at which CIR is reported. CIR continually varies between these stations based on localized climate, topography, elevation, etc. However, normally, these variations are small and for regional planning efforts, the CIR values can be extended to areas outside of the exact climatic station location. For purposes of this analysis, the Theissen polygon method was utilized to determine the “influence area” for each climatic station. This method draws lines between each station, then bisects them midway with a perpendicular line. The intersections of these bisection lines makes up polygons for which all irrigated lands within the polygon uses the CIR at the climatic station. The climatic stations and their associated acreages within each basin are presented in Table 4-3, while a map showing the climate stations and the climatic areas developed using the Theissen polygon method is presented in Figure 4-1.

Table 4-3. Area within Climate Station Theissen Polygon
CIR
Station
Acres within Station Polygon by BasinTotal
(acres)
Big HornClarksForkWind
Basin106,43400106,434
Boysen Dam0023,24223,242
Cody49,9274,563054,491
Dubois0020,18520,185
Fort Washakie0049,48349,483
Lander0011,60311,603
Lovell40,5070040,507
Powell73,43513,735087,170
Riverton0091,52891,528
Sunshine28,9620028,962
Ten Sleep18,3950018,395
Thermopolis24,36501,27825,643
Worland42,7840042,784
Grand Total384,81018,299197,318600,426

Notes:
  1. Does not include Tribal Futures projects or Popo Agie Basin.

Figure 4-1. Climate Stations and Climatic Areas

4.3 Cropping Patterns

Cropping patterns are available from two sources: the United States Department of Agricultural (USDA) 1992/1997 Census of Agriculture (USDA, 1997) and the Wyoming Agricultural Statistics for 2000 (WASS, 2002). A summary of the published cropping patterns and distributions are presented in Table 4-4, while the USDA cropping distribution by County is shown in Figure 4-2.

In general, for purposes of the modeling effort, the USDA values were used as the cropping pattern for the irrigated lands. The USDA values were used because they represent averages of more than one year within the study period (1973-2001), as compared with the Wyoming Agricultural Statistics, which represent only one year at the end of the study period. In addition, for certain climatic stations such as Sunshine and Dubois, it is recognized that many of the crops that are shown in the County-wide cropping patterns are not grown. Therefore, within these two polygons, it was assumed that only hay and alfalfa are grown (at the same distribution as without the remaining crops). Then, the cropping patterns for the remaining stations were modified so that the county-wide cropping pattern remains consistent.

Figure 4-2. County-Wide Cropping Pattern for Study Area (USDA, 1997)



Table 4-4. Reported Acreage and Cropping Patterns within Wind/Bighorn Basin
StationCropWy. Ag. 2000 (1)USDA 1992/1997 (2)
(acres)(percent)(acres)(percent)
Big HornAlfalfa26,00031%25,28629%
Beans7,5009%6,1457%
Corn7,2008%4,1165%
Other Hay6,0007%4,3215%
Spring Grains24,10028%27,47632%
Sugar Beets14,40017%15,74018%
Other
0%2,6613%
Sub-Total
85,200100%85,745100%
FremontAlfalfa66,00063%65,34957%
Beans2,0002%2,4412%
Corn6,0006%4,2824%
Other Hay20,00019%27,14324%
Spring Grains5,7005%11,13610%
Sugar Beets5,1005%3,8363%
Other
0%
0%
Sub-Total
104,800100%114,187100%
Hot SpringsAlfalfa10,00060%12,23571%
Beans3002%2742%
Corn
0%800%
Other Hay5,00030%3,33519%
Spring Grains1,3008%1,2557%
Sugar Beets00%
0%
Other
0%
0%
Sub-Total
16,600100%17,179100%
ParkAlfalfa35,00036%36,37838%
Beans8,0008%5,9456%
Corn5,7006%2,2832%
Other Hay8,0008%5,1325%
Spring Grains23,70025%27,13728%
Sugar Beets16,20017%18,10019%
Other
0%1,3321%
Sub-Total
96,600100%96,307100%
WashakieAlfalfa13,00032%12,21128%
Beans1,7004%1,0652%
Corn
0%1,0952%
Other Hay1,0002%2,4716%
Spring Grains16,70041%17,36939%
Sugar Beets8,80021%9,93222%
Other
0%
0%
Sub-Total
41,200100%44,143100%
TotalAlfalfa150,00044%151,45943%
Beans19,5006%15,8704%
Corn18,9005%11,8563%
Other Hay40,00012%42,40212%
Spring Grains71,50021%84,37324%
Sugar Beets44,50013%47,60813%
Other00%3,9931%
Total
344,400100%353,568100%

Notes:
  1. From Wyoming Agricultural Services (WASS, 2002)
    Spring Grains: Irrigated Spring Wheat = Barley, Oats, Spring Wheat (a majority is Barley). Other Hay: All Hay (-) Alfalfa Hay
  2. From USDA 1997 Census of Agriculture (USDA, 1997) Other Hay: Grass Hay, Small Grain Hay, Other Tame Hay, Wild Hay, Grass Silage Other: Field Seed, Fruits

4.4 Full Supply Crop Irrigation Requirement

Based on the cropping patterns and crop irrigation requirements for the climatic station polygons, the CIR for each of the irrigated lands polygons was calculated. A summary of the CIR for the lands within the Wind/Bighorn River Basin Plan is shown in Table 4-5. These CIR values represent the theoretical maximum crop irrigation requirement calculated using the methodology above, and is considered the Full Supply irrigation requirement for purposes of the model.

Table 4-5. CIR for Irrigated Lands with Wind/Bighorn River Basin Plan by Model Sub-Basin
Model
Sub-Basin
Irrigated
Acres
Monthly CIR (acre-feet)Unit CIR
(ac-ft/ac)
AprMayJunJulAugSepOctAnnual
Upper Wind138,86310,56133,35460,57280,81363,57726,8751,149276,9011.99
Little Wind45,5361,8428,88718,44226,12820,6468,75561785,3181.87
Lower Wind12,9191,9133,8706,3178,1986,3852,95021929,8512.31
Owl Creek17,8392,3344,3266,8499,1077,0433,18230733,1481.86
Nowood21,7251,3604,2049,10412,0537,3352,92515637,1361.71
Upper Bighorn63,1505,97916,88330,53436,84622,84610,552967124,6071.97
Greybull98,0468,04224,52843,86256,39938,32018,0342,023191,2061.95
Shoshone158,18713,54736,75965,87091,20659,95126,7283,355297,4161.88
Lower Bighorn25,8622,7897,33812,85416,24710,4904,99558155,2922.14
Clarks Fork18,2991,6374,2517,64210,5396,9573,11344034,5791.89
Yellowstone0000000000.00
Madison/Gallatin0000000000.00
Total600,42650,003144,399262,045347,536243,550108,1089,8131,165,4541.94

Notes:
  1. Does not includes Tribal Futures projects or Popo Agie basin.
  2. Average values are reported; analysis does not does not distinguish between dry, normal or wet year hydrologic conditions for consumptive use calculations.
4.5 Calculation of Full Supply Diversion Requirements

The Crop Irrigation Requirement represents the theoretical amount of water that is needed by the crop. Water is transported from the river to the crop through a series of conveyance facilities and on-farm facilities. These facilities lose a portion of the water that is transmitted through them before the water reaches the crops due to headgage leakage, evaporative losses, seepage, etc. These inefficiencies must be accounted for in determining the monthly diversion requirement for any crop.

4.5.1 Overall Efficiencies

Overall Efficiency is typically represented as the product of the conveyance efficiency and the on-farm efficiency. Conveyance efficiencies represent the efficiencies of the canals and/or pipelines that transmit the water from the diversion headgate to the farm turnout. Conveyance efficiencies typically vary from 65 to 90 percent, with open channel distribution systems generally having lower efficiencies and pipe systems generally having the highest efficiencies (SCS, 1993 and WWDC, 1999). Distribution system length, soil types, lining types, canal cross section and condition of structures can all have an affect on conveyance efficiencies. The on-farm efficiency represents the efficiency of applying water to the field from the farm turnout to consumptive use by the crop. On-farm efficiencies typically vary from less than 30 to nearly 65 percent, based upon the type of irrigation practices (SCS, 1993). Flood irrigation typically experiences lower efficiencies while sprinkler systems represent higher efficiencies.

Overall efficiencies are typically difficult to estimate. This study has relied upon Overall Efficiencies estimated from previous reports and from standard sources. For the Reservation area, efficiencies are taken from a study conducted by the SCS (1992), which estimated efficiencies for several areas within and in the vicinity of the Wind River Reservation. The SCS developed both annual and monthly overall efficiencies. For the remaining study area, efficiencies were based upon conveyance efficiencies reported by water users within the basin (WWDC, 1999), and typical field and application efficiencies estimated by the SCS (1993). Efficiencies typically vary by month due to antecedent moisture in banks (there is more moisture in the banks later in the season, thus there is less seepage from the canal), operational conditions, etc. Therefore, the efficiencies were varied by month using the same distribution as the monthly efficiencies calculated by the SCS for the Reservation. Table 4-6 presents the monthly and annual overall efficiencies used in the diversion requirement calculations.

Table 4-6. Monthly and Annual Overall Efficiencies
AreaOverall Efficiency by MonthAnnual
Average
MarchAprilMayJuneJulyAugustSeptOct
Dubois(1)(4)(4)18%26%34%34%34%34%30%
Lander(1)(4)17%17%24%37%35%22%22%28%
Other, Large(2)(4)27%27%38%58%55%35%35%44%
Other, Small(3)(4)19%19%27%42%40%25%25%32%
Owl Creek(1)19%19%21%28%36%41%21%17%29%
Reservation(1)(4)18%18%25%33%34%21%21%27%
Riverton(1)(4)20%24%39%52%52%27%27%41%

Notes:
  1. From (SCS, 1992).
  2. Based on average conveyance efficiencies from 1999 Irrigation System Survey Report (WWDC, 1999), large blocks with some lined canals and pipelines, and adequate management (SCS, 1992). Monthly distribution from (SCS, 1992)
  3. Based on average conveyance efficiencies from 1999 Irrigation System Survey Report (WWDC, 1999), small systems with unlined canals and sufficient management (SCS, 1993). Monthly distribution from (SCS, 1992)
  4. No consumptive use within month.
4.5.2 Full Supply Diversion Requirement

Based upon the crop irrigation requirements and overall irrigation efficiencies, Full Supply diversion requirements were calculated for the irrigated lands. The diversion requirement is calculated as the crop irrigation requirement divided by the efficiency of the system. The estimated Full Supply diversion requirements by sub-basin are shown in Table 4-7. As expected with the wide variations in efficiencies, the unit Full Supply diversion requirements expressed as acre-feet per acre also vary.

Table 4-7. Full Supply Diversion Requirements for Irrigated Lands within Wind/Bighorn River Basin Plan by Model Sub-Basin
Model
Sub-Basin
Irrigated
Acres
Monthly Diversion Requirement (ac-ft)Unit DR
(ac-ft/ac)
AprMayJunJulAugSepOctAnnual
Upper Wind138,86352,990148,602171,535172,482134,611102,5844,465787,2695.67
Little Wind45,53610,23549,37473,76979,17560,72241,6922,939317,9076.98
Lower Wind12,9199,56416,12416,19815,76612,27810,92481181,6666.32
Owl Creek17,83912,28220,60024,46225,29817,17815,1531,804116,7766.55
Nowood21,7256,80821,01932,18927,63017,78011,296607117,3275.40
Upper Bighorn63,15024,75068,15287,25969,51645,40033,9403,206332,2235.26
Greybull98,04631,05399,224126,122106,12477,17357,4356,379503,5125.14
Shoshone158,18752,322142,958181,860163,473113,70180,6019,984744,9014.71
Lower Bighorn25,86213,14334,59942,89935,22524,03918,1912,113170,2096.58
Clarks Fork18,2997,76520,26025,86023,15216,15611,4941,605106,2935.81
Yellowstone0000000000.00
Madison/Gallatin0000000000.00
Total600,426220,913620,912782,154717,841519,040383,31033,9123,278,0825.46

Notes:
  1. Does not include Tribal Futures projects or Popo Agie basin.

Section 5 - Summary and Conclusions

The purpose of the analysis summarized in this Technical Memorandum was to document the status of historical and current agricultural water use within the Wind/Bighorn River Basin and to document the methodologies used to develop data necessary for the River Basin simulation models. A summary of the irrigated lands identified in this study as well as those documented in the 1972 Water Plan (SEO) is presented in Table 51. The current estimate of irrigated lands is approximately 54,000 acres, or approximately 10 percent, greater than the estimate of 1972 irrigated lands in the 1972 Water Plan. In addition, the estimate of idle lands is approximately 44,000 acres, or approximately 150 percent, greater than the estimate of idle lands in 1972. The differences could be due to increased lands under irrigation, but are more likely a difference in estimation techniques. For instance, the definition of idle lands in the 1972 Water Plan (lands purposely left idle for any given year or lands on which a crop was planted but not harvested) is much more strict than used in this study (basically any land with a water right not currently irrigated but that has shown any signs of past irrigation). Another factor is that the current basin plan considered all lands in the Wind River Irrigation Project that were given water rights as either irrigated or idle, whereas the 1972 Water Plan may have not.

Table 5-1. Summary of Irrigated Lands
Category1972 Water Plan (SEO)2002
Wind/Bighorn
Basin Plan(3)
Current
(1972)
Projected
(2000)
Irrigated Lands (acres)(1)(2)509,640516,330563,529
Idle Lands(1)/Lands with Water Rights (acres)(2)29,19022,50072,794
New Land Development(1) /Tribal Future Projects (acres)(2)---102,67052,667
Total538,830641,500688,990

Notes:
1. Term used in 1972 Water Plan
2. Term used in Wind/Bighorn Basin Plan
3. From Irrigated Lands Mapping (Includes Popo Agie Basin)
Irrigated Lands = Mapped Irrigated Lands + Man-Made Riparian
Idle Lands = Lands with Water Rights – Tribal Futures Projects
New Land Development = Tribal Futures Projects

Direct comparisons of consumptive use are not as easy because the current basin plan did not calculate consumptive use for the Popo Agie basin. However, a comparison of unit consumptive use (ac-ft/ac) can be made. The 1972 Water Plan calculated a total consumptive use for the 538,830 acres as 1,028,500 acre-feet, or approximately 1.91 acre-feet per acre. As shown in Table 4-5, the current basin plan calculated a consumptive use of 1,165,000 acre-feet for the 600,400 acres used in the model, or approximately 1.94 acre-feet per acre, which agrees very closely to the consumptive use calculated in the Water Plan.

As a major purpose of the irrigated lands and consumptive use calculations in this study was to provide data for overall basin planning, a conservative approach was taken. The conservative approach ensures that all lands with currently or recently active water rights are considered in the water needs analysis and are considered when available surface water is determined. More detailed analyses could be performed once specific projects are identified.

Section 6 - References

BRS, Inc. 2002. “Wind/Bighorn River Basin Plan Water Supply and Demand in the Wind/Big Horn Basin.” Technical Memorandum, Riverton, Wyoming.

BRS, Inc. 2003a. “Wind/Bighorn River Basin Plan Agricultural Water Demands and Projections.” Technical Memorandum, Riverton, Wyoming.

BRS, Inc. 2003b. “Wind/Bighorn River Basin Plan Irrigation Diversion Operation and Description.” Technical Memorandum, Riverton, Wyoming.

MWH. 2002. “Wind/Bighorn River Basin Plan Task 3A/3B - Surface Water Hydrology.” Technical Memorandum. Denver, Colorado.

MWH. 2003. “Wind/Bighorn River Basin Plan Task 3B/3C - Spreadsheet Model Development and Calibration.” Technical Memorandum. Denver, Colorado.

Pochop, Larry, Travis Teegarden, Greg Kerr, Ronald Delaney and Victor Hasfurther. 1992. Consumptive Use and Consumptive Irrigation Requirements in Wyoming. WWRC Publication #92-06. University of Wyoming, Laramie. October.

Soil Conservation Service (SCS). 1992. Interim Irrigation On-Farm Report for Wind River Basin Water Supply Study (DRAFT). Casper, Wyoming. May.

Soil Conservation Service (SCS). 1993. Irrigation Water Requirements. Part 623, National Engineering Handbook, Chapter 2. September.

TriHydro Corporation. 2003. “Technical Memorandum Wind/Bighorn Lands Mapping and Water Rights Data Task 2A”. Laramie, Wyoming.

United States Department of Agriculture (USDA). 1997. 1997 Census of Agriculture. Wyoming – County Data.

Wyoming Agricultural Statistics Service (WASS). 2002. “Wyoming County Data, 2000.” From website: http://www.nass.usda.gov/wy/.

Wyoming State Engineer’s Office (SEO). 1972. Water and Related Land Resources of the Bighorn River Basin, Wyoming. Wyoming Water Planning Program Report No. 11. Cheyenne, Wyoming. October.

Wyoming Water Development Commission (WWDC). 1999. Irrigation System Survey Report. Cheyenne.


Appendix A
Diversion Data

Summary of Average Monthly and Annual Diversions (1973-2001)
Overall
Sub-BasinDiversion NameData
Type
Years of
Data
Average Monthly Flow (ac-ft)
OctNovDecJanFebMarAprMayJunJulAugSepTotal
Clarks Fork YellowstoneBennett Creek
Little Rocky
Spot
Spot
12
12
177
204
0
0
0
0
0
0
0
0
0
267
175
120
372
315
580
589
639
715
597
634
469
505
3,009
3,350
Upper WindDinwoody Canal
Dry Creek Canal
Johnstown Canal
LeClair Canal
Lefthand Canal
Riverton Valley Canal
Upper Wind River A Canal
Wyoming Canal
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
6
12
10
29
10
28
4
26
280
1,081
0
3,097
0
430
0
4,105
0
0
0
0
0
0
0
2,363
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6,714
4,154
288
6
1,469
0
1,120
197
16,622
2,997
6,409
801
9,018
1,089
5,650
3,294
50,903
3,289
11,136
1,344
15,644
1,521
6,928
3,802
75,116
4,038
12,403
1,582
19,747
1,764
8,383
3,391
84,873
3,611
11,727
1,559
16,293
1,589
6,378
3,544
66,380
2,997
7,781
1,199
11,435
1,443
4,582
3,069
48,466
21,367
50,825
6,490
76,703
7,405
33,472
17,296
355,542
Little WindCoolidge Canal
Ray Canal
Sub-Agency Canal
Daily
Daily
Daily
1
11
1
0
2,774
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
751
470
5,770
6,415
6,100
7,890
11,764
4,840
6,610
14,358
7,150
3,920
10,693
6,140
2,750
6,362
4,270
26,940
53,119
28,970
Upper BighornAckerman
Baylor-Purvis-Thompson
Big Horn Canal
Bluff Canal
Brassington
Caledonia
Chessington-Wilson
Hale
Highland Ditch
Highland Hanover
Kirby Canal
Lower Hanover Canal
Lower Lucerne Canal
Padlock
Sliney and Mikkleson/S,N
Tenderfoot
Upper Hanover Canal
Upper Lucerne Canal
Woodward-Johnson
Spot
Spot
Daily
Daily
Spot
Spot
Spot
Spot
Daily
Daily
Daily
Daily
Daily
Spot
Spot
Spot
Daily
Daily
Spot
12
6
27
27
12
12
12
12
6
7
29
27
16
12
12
12
28
16
12
100
5
3,588
893
143
47
38
33
238
0
230
412
0
22
28
166
5,044
0
35
206
0
0
0
5
0
0
0
0
0
0
8
0
0
0
366
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
0
0
0
0
0
0
0
220
37
0
0
0
307
185
110
0
0
0
8
0
0
236
5
0
0
244
112
55
12,071
2,482
14
314
72
89
0
1,283
294
3,985
224
96
239
181
11,405
173
100
281
253
25,521
5,721
188
486
239
244
1,782
4,951
3,122
8,291
1,912
326
714
369
25,537
1,679
286
254
428
26,881
6,222
273
416
276
304
1,762
5,719
3,850
9,459
2,420
605
1,177
371 27,904
2,025
292
144
321
30,190
6,797
576
175
356
174
2,071
7,521
4,177
10,974
2,849
467
540
180
30,493
2,328
279
96
224
27,433
6,316
557
123
219
138
1,880
6,981
3,760
9,636
2,374
181
236
168
28,008
2,231
144
103
128
22,752
4,945
409
77
129
93
1,751
3,953
2,983
6,016
1,403
84
97
218
22,654
1,740
74
1,516
1,521
148,437
33,375
2,166
1,944
1,514
1,185
9,484
30,409
18,416
48,810
11,183
1,781
3,268
2,023
151,046
10,177
1,454
NowoodAnita
Anita Supplemental
Bernstein
Big Bear Enl.
Elk
George & Bayne
Go Ahead
Harmony
Highland
Shafer
Van Alstine (Avent
Western
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
11
11
11
10
11
11
11
11
11
11
11
10
465
127
111
114
124
179
121
114
248
138
529
107
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
268
83
40
27
31
132
82
212
71
132
475
23
1,048
354
281
245
243
397
339
496
453
434
1,128
222
1,299
463
576
611
514
495
501
554
744
733
1,384
543
1,135
426
550
595
493
513
506
565
782
676
1,354
477
960
326
453
520
452
468
403
457
695
559
1,234
390
915
270
331
356
312
406
332
361
499
435
1,074
287
6,089
2,048
2,342
2,469
2,168
2,590
2,285
2,759
3,491
3,108
7,178
2,049
Greybull/DryAgrarian
Arnold
Ashworth #2
Avent
Beck and Allen
Bench Canal
Borner & Harvey (Borner)
Brown (Croxall and Brown)
Butte
Cheeseman
Cockins
Dodge
Dyer
Fairview Farmer's
Canal
German
Greybull
Hurlbut
J.F.W.
Jimmerfield
Jimmerfield-Roach
Keystone
Meyers
Moss & Long Hollow
Only Chance
Pappapau
Perkins
Rocky
Ruby
Sandstone
Snyder (Nichols)
T.L.
Tatman-St. Joe
Watson
Whitney Gleaver
Winkle & Benbrooke
Woods and Burnett
Spot
Spot
Spot
Spot
Spot
Daily
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Daily
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
12
12
12
12
6
28
12
12
12
12
12
12
12
12
27
12
12
12
6
12
12
12
12
12
12
12
6
12
12
12
12
12
12
12
12
12
12
475
85
85
148
79
1,040
103
105
10
69
108
96
65
357
794
147
63
42
279
76
129
94
59
48
27
115
357
58
56
315
76
143
225
65
48
33
268
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2,260
0
0
0
0
0
0
271
0
0
0
0
0
581
0
0
0
0
0
1,118
0
0
0
0
448
139
139
146
634
1,233
117
259
57
132
154
69
152
577
1,717
123
86
135
457
104
228
191
110
52
101
145
759
80
43
303
83
113
246
45
32
73
580
1,319
478
478
756
1,503
8,485
313
766
197
500
449
304
580
1,358
9,409
552
374
477
1,056
384
567
701
489
156
311
513
1,473
323
176
1,040
468
429
855
184
96
347
1,344
1,561
608
608
926
824
11,598
331
942
395
1,008
568
629
716
1,864
11,349
791
658
910
1,068
468
775
1,007
538
214
454
915
1,671
790
409
1,331
488
685
1,313
343
171
606
1,358
1,882
614
614
1,221
1,288
14,585
369
1,214
247
537
575
625
760
2,410
12,773
992
699
986
1,235
481
1,177
1,358
594
160
436
900
2,092
669
368
1,460
616
637
1,836
419
121
388
1,891
1,726
565
565
958
672
11,292
350
974
103
393
561
709
692
1,801
10,425
748
513
443
993
404
907
823
501
204
277
689
1,603
621
354
1,403
602
567
1,338
336
105
481
1,698
1,253
286
286
519
474
7,175
263
617
41
239
362
412
418
1,167
6,682
431
273
135
740
300
518
537
304
171
140
497
1,072
225
217
915
361
349
821
212
126
182
1,094
8,663
2,776
2,776
4,673
5,473
55,408
1,847
4,877
1,051
2,878
2,778
2,844
3,384
11,794
53,149
3,783
2,667
3,127
5,827
2,216
4,573
4,711
2,595
1,005
1,746
3,775
9,607
2,766
1,623
6,768
2,694
2,924
7,751
1,604
699
2,111
8,233
Shoshone Cody Canal
Deaver-Frannie Canal
Elk Lovell Canal
Frannie Canal
Garland Canal
Garland-Frannie
Globe Canal
Heart Mountain Canal
Hunt Canal
Lakeview Canal
North Fork Ditch
Sidon Canal
Willwood Canal
Wilson & Mckissack
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Spot
28
16
28
4
22
4
28
26
28
28
8
29
27
9
2,667
8,110
3,111
22,639
24,627
22,639
841
11,399
1,681
1,594
0
3,192
6,541
300
0
0
0
0
0
0
0
0
0
0
0
0
46
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1,858
4,017
4,945
7,556
16,965
7,556
670
7,607
1,611
1,185
57
5,711
6,144
118
10,574
14,928
16,316
44,335
45,602
44,335
2,580
28,184
5,491
8,012
1,553
13,985
15,757
595
14,303
15,180
18,616
46,769
48,097
46,769
2,716
43,057
6,016
12,722
2,068
15,498
15,695
1,158
15,483
16,191
20,773
53,366
53,585
53,366
3,342
48,054
7,007
13,434
2,085
17,621
21,557
1,550
12,481
16,261
19,506
50,736
48,777
50,736
3,166
40,135
6,640
11,014
1,882
16,936
19,932
1,171
8,751
14,803
16,427
37,668
38,757
37,668
2,682
27,335
5,486
7,338
1,767
13,991
15,258
733
66,117
89,491
99,694
263,069
276,409
263,069
15,997
205,770
33,932
55,300
9,411
86,935
100,930
5,626
Big Horn Lake Anita Ditch
Bernie
Dunshee
Frieze
Hatten
High Line
Kershner
McDonald (Shell Canal)
Porter
Shell Canal
Whaley
Whaley Cememtary(Howar
Daily
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
4
8
12
12
6
6
11
12
12
12
12
7
8,110
93
59
124
112
225
103
1,301
524
1,135
443
524
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1,708
81
70
119
15
122
95
883
145
635
182
117
9,106
232
310
731
289
454
457
4,408
963
3,228
1,407
929
13,092
287
416
922
252
418
553
4,787
1,452
3,582
1,234
946
14,601
188
437
840
314
461
482
5,227
1,322
3,322
1,145
703
13,3990
129
413
787
208
416
403
4,408
1,417
3,137
1,189
615
11,724
113
264
478
169
335
266
3,000
1,066
2,045
881
590
71,731
1,125
1,968
4,001
1,359
2,431
2,360
24,014
6,890
17,084
6,481
4,423

Summary of Average Monthly and Annual Diversions (1973-2001)
Dry Years
Sub-BasinDiversion NameData
Type
Years of
Data
Average Monthly Flow (ac-ft)
OctNovDecJanFebMarAprMayJunJulAugSepTotal
Clarks Fork Yellowstone Bennett Creek
Little Rocky
Spot
Spot
3
3
135
302
0
0
0
0
0
0
0
0
0
0
106
125
317
315
384
488
279
507
369
407
316
320
1,906
2,463
Upper Wind Dinwoody Canal
Dry Creek Canal
Johnstown Canal
LeClair Canal
Lefthand Canal
Riverton Valley Canal
Upper Wind River A Canal
Wyoming Canal
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
0
3
3
6
3
6
1
6
--
37
0
0
0
0
0
0
--
0
0
0
0
0
0
0
--
0
0
0
0
0
0
0
--
0
0
0
0
0
0
0
--
0
0
0
0
0
0
0
--
0
0
0
0
0
0
0
--
279
25
2,458
0
1,799
592
20,864
--
9,170
1,467
11,567
1,638
7,994
4,508
57,081
--
13,486
1,712
16,435
2,018
7,441
4,564
64,654
--
13,085
1,507
15,985
2,371
7,664
2,795
64,284
--
12,566
1,591
14,647
2,153
6,678
3,697
51,350
--
7,044
1,379
11,067
2,076
4,584
3,400
36,354
--
55,667
7,682
72,159
10,257
36,160
19,557
294,587
Little Wind Coolidge Canal
Ray Canal
Sub-Agency Canal
Daily
Daily
Daily
1
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
470
5,770
10,535
6,100
7,890
15,680
4,840
6,610
8,835
7,150
3,920
7,245
6,140
2,750
2,445
4,270
26,940
44,740
28,970
Upper Bighorn Ackerman
Baylor-Purvis-Thompson
Big Horn Canal
Bluff Canal
Brassington
Caledonia
Chessington-Wilson
Hale
Highland Ditch
Highland Hanover
Kirby Canal
Lower Hanover Canal
Lower Lucerne Canal
Padlock
Sliney and Mikkleson/S/North
Tenderfoot
Upper Hanover Canal Upper Lucerne Canal
Woodward-Johnson
Spot
Spot
Daily
Daily
Spot
Spot
Spot
Spot
Daily
Daily
Daily
Daily
Daily
Spot
Spot
Spot
Daily
Daily
Spot
2
1
5
5
2
2
2
2
0
1
6
5
3
2
2
2
5
3
2
39
0
0
0
209
81
12
64
--
0
0
0
0
0
0
43
0
0
0
0
0
0
0
0
0
0
0
--
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
--
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
--
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
--
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
--
0
0
0
0
0
0
0
0
0
0
56
0
10,358
2,214
69
176
28
0
--
1,090
225
3,266
112
53
64
54
10,075
224
18
0
181
26,207
6,374
102
335
116
0
--
6,280
3,114
9,462
2,416
171
205
133
27,251
1,889
37
33
0
26,448
6,523
303
198
43
0
--
7,510
3,549
10,295
3,108
268
288
58
27,935
2,308
62
12
0
26,697
6,445
2,328
46
98
0
--
7,660
3,900
10,580
3,030
168
220
22
28,172
2,469
189
0
0
24,629
5,833
2,043
53
30
0
--
7,750
3,383
9,749
2,549
118
98
38
26,043
2,355
13
7
0
20,116
4,160
1,008
69
40
0
--
4,370
2,606
6,270
1,356
0
47
66
20,076
1,996
0
147
181
134,455
31,549
6,061
957
368
64
--
34,660
16,777
49,622
12,571
780
922
415
139,552
11,241
319
Nowood Anita
Anita Supplemental
Bernstein
Big Bear Enl.
Elk
George & Bayne
Go Ahead
Harmony
Highland
Shafer
Van Alstine (Avent
Western
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
2
2
2
2
2
2
2
2
2
2
2
2
669
288
193
15
16
236
17
335
574
14
973
19
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
140
45
45
0
16
160
111
211
24
65
417
0
1,128
669
311
317
363
678
474
613
593
450
1,130
218
1,717
967
719
826
953
767
769
746
1,021
925
1,879
516
1,463
571
630
864
928
762
682
800
1,025
730
1,694
690
770
197
519
505
329
455
353
545
532
503
979
506
818
163
352
289
116
371
277
469
326
489
1,257
247
6,705
2,900
2,769
2,815
2,722
3,429
2,685
3,719
4,096
3,175
8,328
2,196
Greybull/Dry Agrarian
Arnold
Ashworth #2
Avent
Beck and Allen
Bench Canal
Borner & Harvey (Borner)
Brown (Croxall and Brown)
Butte
Cheeseman
Cockins
Dodge
Dyer
Fairview
Farmer's Canal
German
Greybull
Hurlbut
J.F.W.
Jimmerfield
Jimmerfield-Roach
Keystone
Meyers
Moss & Long Hollow
Only Chance
Pappapau
Perkins
Rocky
Ruby
Sandstone
Snyder (Nichols)
T.L.
Tatman-St. Joe
Watson
Whitney Gleaver
Winkle & Benbrooke
Woods and Burnett
Spot
Spot
Spot
Spot
Spot
Daily
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Daily
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
2
2
2
2
1
6
2
2
2
2
2
2
2
2
6
2
2
2
1
2
2
2
2
2
2
2
1
2
2
2
2
2
2
2
2
2
2
223
96
96
95
71
0
48
131
23
53
116
181
107
338
0
118
55
11
71
58
152
66
66
46
36
161
183
56
80
219
89
157
205
97
5
22
211
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
402
59
59
192
668
469
154
253
37
82
90
37
46
224
1,021
173
26
183
365
125
187
214
116
34
56
121
863
62
32
269
119
52
108
44
17
31
507
1,134
266
266
983
1,898
7,490
347
804
168
331
404
186
229
735
8,964
445
123
748
1,342
352
689
615
350
123
92
683
962
279
121
857
392
222
706
163
84
179
1,210
1,128
467
467
1,110
672
9,879
348
859
318
627
556
412
466
885
11,204
543
171
1,342
940
302
817
778
324
190
54
745
1,387
578
226
786
376
350
1,031
263
95
379
1,239
929
312
312
1,004
1,094
10,184
407
897
118
333
496
463
470
1,023
10,142
607
336
926
773
189
765
848
329
94
86
1,010
2,005
340
175
722
343
393
1,101
345
99
173
1,524
691
367
367
642
673
7,244
295
774
60
266
432
468
460
628
7,786
374
194
910
386
199
523
444
358
267
59
735
611
187
113
666
262
499
732
229
111
290
989
692
191
191
313
584
4,169
242
542
28
238
314
273
402
509
4,573
127
33
395
619
205
279
453
206
164
16
740
791
119
97
476
154
308
504
178
170
122
862
5,198
1,758
1,758
4,338
5,659
39,435
1,841
4,260
752
1,931
2,409
2,020
2,180
4,339
43,690
2,387
937
4,514
4,497
1,429
3,412
3,418
1,749
918
399
4,196
6,802
1,620
843
3,995
1,735
1,981
4,387
1,319
580 1,196
6,542
Shoshone Cody Canal
Deaver-Frannie Canal
Elk Lovell Canal
Frannie Canal
Garland Canal
Garland-Frannie
Globe Canal
Heart Mountain Canal
Hunt Canal
Lakeview Canal
North Fork Ditch
Sidon Canal
Willwood Canal
Wilson & Mckissack
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Spot
6
4
6
0
5
0
6
6
6
6
2
6
6
2
0
0
0
--
0
--
0
0
0
0
0
0
0
307
0
0
0
--
0
--
0
0
0
0
0
0
0
0
0
0
0
--
0
--
0
0
0
0
0
0
0
0
0
0
0
--
0
--
0
0
0
0
0
0
0
0
0
0
0
--
0
--
0
0
0
0
0
0
0
0
0
0
0
--
0
--
0
0
0
0
0
0
0
0
2,549
4,368
6,000
--
20,442
--
890
9,026
2,061
1,788
0
6,506
6,665
153
11,412
14,362
16,021
--
45,830
--
2,763
33,725
5,351
10,230
1,608
14,850
16,559
492
10,523
13,766
16,677
--
45,203
--
2,358
40,381
5,642
11,637
1,953
15,816
15,180
749
11,815
16,013
18,046
--
52,617
--
2,917
45,080
7,024
10,259
2,020
17,889
20,601
756
9,007
15,311
16,684
--
46,701
--
2,833
36,250
6,709
6,702
1,822
16,902
19,044
388
7,369
13,542
15,281
--
36,513
--
2,348
26,204
5,040
4,269
1,827
13,867
14,287
362
52,674
77,363
88,709
--
247,305
--
14,110
190,665
31,826
44,886
9,232
85,830
92,335
3,208
Big Horn Lake Anita Ditch
Bernie
Dunshee
Frieze
Hatten
High Line
Kershner
McDonald (Shell Canal)
Porter
Shell Canal
Whaley
Whaley Cemetary (How En
Daily
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
1
2
3
3
1
1
3
3
3
3
3
1
0
41
73
124
0
235
167
1,674
692
1,194
403
603
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1,954
66
42
48
0
0
25
778
57
381
0
0
8,586
230
419
806
341
500
527
5,012
1,355
3,553
1,542
1,064
10,931
268
473
778
159
398
548
4,966
1,312
3,484
1,264
924
13,983
244
428
656
177
259
343
3,958
893
2,396
952
569
10,739
166
536
583
117
217
314
2,779
1,217
2,022
969
372
10,030
139
366
238
109
232
183
1,487
909
689
848
477
56,223
1,152
2,336
3,233
903
1,841
2,107
20,654
6,435
13,720
5,978
4,007

Summary of Average Monthly and Annual Diversions (1973-2001)
Normal Years
Sub-BasinDiversion NameData
Type
Years of
Data
Average Monthly Flow (ac-ft)
OctNovDecJanFebMarAprMayJunJulAugSepTotal
Clarks Fork Yellowstone Bennett Creek
Little Rocky
Spot
Spot
7
7
182
145
0
0
0
0
0
0
0
0
0
267
192
138
376
304
602
680
650
768
583
697
430
540
3,015
3,540
Upper Wind Dinwoody Canal
Dry Creek Canal
Johnstown Canal
LeClair Canal
Lefthand Canal
Riverton Valley Canal
Upper Wind River A Canal
Wyoming Canal
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
3
5
3
17
3
16
1
16
0
1,311
0
3,097
0
430
0
4,105
0
0
0
0
0
0
0
2,363
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6,714
4,154
354
0
1,165
0
924
0
15,763
4,811
6,219
600
8,823
870
5,200
3,670
51,228
5,200
11,311
1,183
15,384
1,490
6,980
3,800
80,114
6,652
12,135
1,483
20,347
1,450
8,516
3,710
89,592
5,624
11,228
1,563
16,492
1,213
6,045
3,500
69,897
4,899
8,022
1,097
11,043
1,287
4,403
3,700
50,977
31,341
50,580
5,927
76,351
6,310
32,498
18,380
370,754
Little Wind Coolidge Canal
Ray Canal
Sub-Agency Canal
Daily
Daily
Daily
0
5
0
--
0
--
--
0
--
--
0
--
--
0
--
--
0
--
--
0
--
--
1,099
--
--
6,185
--
--
12,337
--
--
15,274
--
--
10,814
--
--
7,098
--
--
52,808
--
Upper Bighorn Ackerman
Baylor-Purvis-Thompson
Big Horn Canal
Bluff Canal
Brassington
Caledonia
Chessington-Wilson
Hale
Highland Ditch
Highland Hanover
Kirby Canal
Lower Hanover Canal
Lower Lucerne Canal
Padlock
Sliney and Mikkleson/S/North
Tenderfoot
Upper Hanover Canal
Upper Lucerne Canal
Woodward-Johnson
Spot
Spot
Daily
Daily
Spot
Spot
Spot
Spot
Daily
Daily
Daily
Daily
Daily
Spot
Spot
Spot
Daily
Daily
Spot
5
2
16
17
5
5
5
5
3
2
17
16
7
5
5
5
17
7
5
207
113
3,588
893
17
40
31
37
188
0
230
412
0
29
43
250
5,044
0
38
206
0
0
0
5
0
0
0
0
0
0
8
0
0
0
366
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
0
0
0
0
0
0
0
180
37
0
0
0
692
185
0
0
0
0
8
0
0
129
0
0
0
231
199
12
12,116
2,670
0
428
87
99
0
1,630
371
3,827
409
89
302
272
10,974
265
122
373
400
24,545
5,593
150
527
295
273
1,919
4,790
2,996
8,045
1,983
391
859
461
24,725
1,889
321
410
483
26,309
6,176
245
594
359
329
2,191
6,093
3,710
9,082
2,147
653
776
567
27,304
1,991
319
211
220
29,836
6,862
80
339
318
169
2,131
7,465
4,074
10,843
2,640
491
728
256
30,272
2,245
194
165
195
27,221
6,432
149
211
148
179
1,205
7,510
3,750
9,418
2,269
163
242
178
27,809
2,116
117
131
102
22,833
5,149
187
98
107
125
1,621
4,615
2,799
6,042
1,556
46
42
246
23,274
1,747
82
2,082
1,561
146,448
33,774
833
2,929
1,529
1,212
9,256
32,103
17,932
47,706
11,003
1,862
3,122
2,595
149,403
10,252
1,423
Nowood Anita
Anita Supplemental
Bernstein
Big Bear Enl.
Elk
George & Bayne
Go Ahead
Harmony
Highland
Shafer
Van Alstine(Avent
Western
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
7
7
7
7
7
7
7
7
7
7
7
6
440
122
113
129
147
157
112
96
201
151
426
114
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
340
99
47
37
36
145
94
246
71
196
562
45
1,098
283
276
202
186
335
321
495
400
457
1,145
248
1,250
331
556
516
432
430
446
525
673
708
1,261
622
1,112
425
576
560
460
476
498
529
742
745
1,307
473
1,030
393
458
530
457
494
429
452
764
643
1,341
429
994
317
319
376
364
434
362
354
596
450
1,037
313
6,264
1,970
2,346
2,350
2,083
2,471
2,262
2,696
3,446
3,349
7,078
2,246
Greybull/Dry Agrarian
Arnold
Ashworth #2
Avent
Beck and Allen
Bench Canal
Borner & Harvey (Borner)
Brown (Croxall and Brown)
Butte
Cheeseman
Cockins
Dodge
Dyer
Fairview
Farmer's Canal
German
Greybull
Hurlbut
J.F.W.
Jimmerfield
Jimmerfield-Roach
Keystone
Meyers
Moss & Long Hollow
Only Chance
Pappapau
Perkins
Rocky
Ruby
Sandstone
Snyder (Nichols)
T.L.
Tatman-St. Joe
Watson
Whitney Gleaver
Winkle & Benbrooke
Woods and Burnett
Spot
Spot
Spot
Spot
Spot
Daily
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Daily
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
6
6
6
6
2
16
6
6
6
6
6
6
6
6
15
6
6
6
2
6
6
6
6
6
6
6
2
6
6
6
6
6
6
6
6
6
5
462
73
73
147
54
0
117
132
12
117
130
73
88
263
0
139
57
80
305
108
111
161
61
32
23
154
395
59
34
401
71
113
230
65
39
58
310
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
391
136
136
191
782
1,269
98
204
53
119
157
101
114
515
1,555
118
113
54
510
158
171
253
115
82
94
175
737
90
69
220
84
111
146
59
42
56
603
1,273
470
470
709
1,486
8,194
308
679
178
409
482
385
483
1,339
8,826
531
448
184
720
391
514
596
447
262
289
588
1,416
327
259
1,097
392
432
804
216
136
298
1,383
1,703
716
716
1,157
845
12,249
364
1,077
504
1,175
654
757
806
2,321
11,630
983
778
868
1,161
597
883
1,220
651
312
442
1,235
1,940
926
494
1,706
582
739
1,618
431
229
786
1,528
2,064
746
746
1,303
1,170
15,165
393
1,233
357
681
627
657
773
2,653
13,211
931
661
996
1,008
583
1,279
1,365
514
166
386
1,004
1,944
753
445
1,496
659
761
1,834
503
117
528
2,183
1,993
587
587
999
577
12,190
382
981
169
443
649
732
706
1,867
11,336
713
617
366
933
491
1,033
777
494
181
295
782
1,522
750
457
1,570
658
604
1,480
372
117
551
1,798
1,246
242
242
489
312
7,905
252
669
69
246
423
437
356
1,163
7,160
422
276
126
495
329
566
440
319
176
129
576
978
233
274
1,028
351
342
800
232
99
118
1,092
9,133
2,970
2,970
4,995
5,225
56,971
1,914
4,975
1,341
3,191
3,122
3,144
3,326
10,120
53,717
3,837
2,949
2,675
5,133
2,657
4,558
4,813
2,600
1,211
1,657
4,514
8,931
3,138
2,032
7,517
2,796
3,101
6,910
1,878
779
2,395
8,897
Shoshone Cody Canal
Deaver-Frannie Canal
Elk Lovell Canal
Frannie Canal
Garland Canal
Garland-Frannie
Globe Canal
Heart Mountain Canal
Hunt Canal
Lakeview Canal
North Fork Ditch
Sidon Canal
Willwood Canal
Wilson & Mckissack
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Spot
16
9
16
2
13
2
16
14
16
16
4
17
15
4
1,624
0
5,845
23,504
24,627
23,504
1,031
11,358
2,024
720
0
3,546
7,102
258
0
0
0
0
0
0
0
0
0
0
0
0
91
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1,715
3,912
4,428
3,199
16,204
3,199
643
7,422
1,480
1,039
99
5,621
6,231
84
9,689
15,041
15,462
40,481
45,876
40,481
2,311
27,516
5,302
7,054
1,614
13,876
15,054
493
15,739
15,679
19,144
47,299
49,545
47,299
2,803
47,656
6,271
13,225
2,099
16,163
16,623
1,138
16,387
16,104
21,233
52,630
54,091
52,630
3,373
51,994
7,123
14,142
2,110
18,304
21,865
1,568
12,782
16,468
20,018
51,686
49,973
51,686
3,240
44,158
6,695
11,662
2,030
17,417
20,609
1,262
8,956
15,178
16,731
37,606
39,699
37,606
2,684
29,753
5,494
7,822
1,818
14,562
16,127
794
66,892
82,381
102,861
256,405
280,015
256,405
16,086
219,858
34,388
55,663
9,770
89,490
103,703
5,597
Big Horn Lake Anita Ditch
Bernie
Dunshee
Frieze
Hatten
High Line
Kershner
McDonald (Shell Canal)
Porter
Shell Canal
Whaley
Whaley Cemetary (Howard En
Daily
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
3
4
6
6
4
4
6
6
6
6
6
4
8,110
98
35
105
63
157
70
1,150
404
1,082
326
311
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1,585
112
72
164
21
204
75
894
246
716
244
118
9,626
240
354
748
310
503
404
4,583
920
3,428
1,381
982
14,172
338
532
898
303
421
553
4,669
1,335
3,551
1,217
947
14,910
186
500
885
365
434
513
5,293
1,345
3,365
1,119
669
14,715
93
417
831
223
383
387
4,572
1,421
3,488
1,262
609
13,418
90
258
510
168
331
228
3,091
1,091
2,227
831
612
76,536
1,158
2,168
4,141
1,452
2,433
2,230
24,252
6,763
17,858
6,379
4,249

Summary of Average Monthly and Annual Diversions (1973-2001)
Wet Years
Sub-BasinDiversion NameData
Type
Years of
Data
Average Monthly Flow (ac-ft)
OctNovDecJanFebMarAprMayJunJulAugSepTotal
Clarks Fork Yellowstone Bennett Creek
Little Rocky
Spot
Spot
2
2
229
203
0
0
0
0
0
0
0
0
0
0
150
51
388
356
601
373
780
735
758
641
683
570
3,588
2,931
Upper Wind Dinwoody Canal
Dry Creek Canal
Johnstown Canal
LeClair Canal
Lefthand Canal
Riverton Valley Canal
Upper Wind River A Canal
Wyoming Canal
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
3
4
4
6
4
6
2
4
280
1,435
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
231
0
1,203
0
913
0
13,695
276
4,575
451
6,990
841
4,505
2,498
40,333
1,379
9,154
1,188
15,545
1,172
6,278
3,422
70,818
1,425
12,226
1,713
21,908
1,543
8,748
3,529
96,880
1,597
11,721
1,530
17,409
1,447
6,967
3,489
74,855
1,096
8,032
1,139
12,847
1,085
5,060
2,587
56,593
6,052
47,375
6,022
75,901
6,087
32,471
15,526
353,173
Little Wind Coolidge Canal
Ray Canal
Sub-Agency Canal
Daily
Daily
Daily
0
4
0
--
2,774
--
--
0
--
--
0
--
--
0
--
--
0
--
--
0
--
--
673
--
--
4,643
--
--
9,091
--
--
15,975
--
--
12,266
--
--
7,400
--
--
52,823
--
Upper Bighorn Ackerman
Baylor-Purvis-Thompson
Big Horn Canal
Bluff Canal
Brassington
Caledonia
Chessington-Wilson
Hale
Highland Ditch
Highland Hanover
Kirby Canal
Lower Hanover Canal
Lower Lucerne Canal
Padlock
Sliney and Mikkleson/S-North
Tenderfoot
Upper Hanover Canal
Upper Lucerne Canal
Woodward-Johnson
Spot
Spot
Daily
Daily
Spot
Spot
Spot
Spot
Daily
Daily
Daily
Daily
Daily
Spot
Spot
Spot
Daily
Daily
Spot
5
3
6
5
5
5
5
5
3
4
6
6
6
5
5
5
6
6
5
50
74
0
0
204
36
57
13
288
0
0
0
0
26
27
164
0
0
54
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
240
0
0
0
0
179
0
219
0
0
0
0
0
0
289
7
0
0
257
54
102
13,387
2,148
0
278
78
117
0
1,158
184
4,953
65
118
224
153
13,663
41
114
330
179
27,553
5,504
270
512
242
317
1,577
4,700
3,443
7,970
1,578
336
701
396
26,410
1,328
358
208
534
28,770
6,080
287
360
304
406
1,333
5,085
4,550
9,768
2,395
701
1,675
331
29,578
1,923
363
143
495
34,045
6,928
195
96
489
248
2,012
7,515
4,747
11,652
3,003
568
454
183
33,050
2,355
383
76
317
30,333
6,404
224
82
352
161
2,554
6,525
4,162
10,122
2,410
221
259
223
30,212
2,303
217
122
188
24,733
5,034
332
63
183
105
1,880
3,518
3,882
5,733
1,248
148
152
265
23,045
1,605
98
1,223
1,890
158,822
32,098
1,511
1,605
1,706
1,586
9,644
28,500
20,967
50,198
10,699
2,118
3,781
1,723
155,958
9,556
1,844
Nowood Anita
Anita Supplemental
Bernstein
Big Bear Enl.
Elk
George & Bayne
Go Ahead
Harmony
Highland
Shafer
Van Alstine (Avent
Western
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
2
2
2
1
2
2
2
2
2
2
2
2
433
0
11
120
65
281
284
13
254
175
806
160
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
180
73
11
0
21
62
16
112
118
10
270
0
816
250
268
431
354
304
258
383
470
348
1,074
175
1,025
356
495
972
540
421
400
449
678
618
1,261
411
877
285
392
534
376
373
357
438
659
416
1,157
271
939
255
370
479
496
400
376
384
648
363
1,166
194
774
234
349
303
255
358
295
276
382
339
1,003
274
5,043
1,453
1,896
2,839
2,106
2,199
1,985
2,056
3,210
2,270
6,738
1,485
Greybull/Dry Agrarian
Arnold
Ashworth #2
Avent
Beck and Allen
Bench Canal
Borner & Harvey (Borner)
Brown (Croxall and Brown)
Butte
Cheeseman
Cockins
Dodge
Dyer
Fairview
Farmer's Canal
German
Greybull
Hurlbut
J.F.W.
Jimmerfield
Jimmerfield-Roach
Keystone
Meyers
Moss & Long Hollow
Only Chance
Pappapau
Perkins
Rocky
Ruby
Sandstone
Snyder (Nichols)
T.L.
Tatman-St. Joe
Watson
Whitney Gleaver
Winkle & Benbrooke
Woods and Burnett
Spot
Spot
Spot
Spot
Spot
Daily
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Daily
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
4
4
4
4
3
6
4
4
4
4
4
4
4
4
6
4
4
4
3
4
4
4
4
4
4
4
3
4
4
4
4
4
4
4
4
4
5
664
96
96
183
90
1,040
116
52
0
0
67
76
0
522
794
180
80
0
340
34
151
0
51
75
30
20
402
58
77
203
76
185
232
44
93
0
219
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2,260
0
0
0
0
0
0
271
0
0
0
0
0
581
0
0
0
0
0
1,118
0
0
0
0
542
184
184
66
524
1,894
122
316
73
172
183
45
252
816
2,833
103
83
211
451
26
306
100
102
23
133
120
740
77
15
403
64
145
441
29
27
115
595
1,470
596
596
703
1,382
10,258
304
832
235
698
430
262
878
1,688
11,310
632
407
707
1,186
392
560
874
609
40
448
334
1,682
339
100
1,075
600
529
993
153
53
494
1,374
1,599
544
544
545
861
11,581
281
850
298
989
468
577
729
1,896
10,792
674
754
746
1,048
391
644
856
506
104
668
600
1,585
725
394
1,229
426
786
1,072
274
137
494
1,304
2,132
599
599
1,226
1,431
17,442
320
1,354
175
459
550
666
888
2,861
14,309
1,261
927
1,004
1,540
498
1,281
1,604
827
187
675
715
2,219
728
370
1,794
699
605
2,206
351
136
320
1,861
1,909
638
638
1,065
734
12,947
339
1,067
41
393
515
802
792
2,322
10,788
979
542
305
1,235
397
973
1,072
581
201
362
551
1,988
676
345
1,605
702
556
1,463
344
87
490
1,921
1,541
388
388
658
545
8,234
287
602
12
231
310
449
504
1,501
7,596
594
390
15
943
311
590
702
333
168
215
277
1,227
269
207
1,022
477
379
1,005
204
138
292
1,189
9,856
3,046
3,046
4,446
5,568
63,395
1,769
5,074
834
2,942
2,522
2,877
4,043
13,865
58,422
4,423
3,182
2,988
6,743
2,049
4,777
5,208
3,009
798
2,532
2,616
10,425
2,873
1,507
7,332
3,044
3,185
8,530
1,399
671
2,204
8,462
Shoshone Cody Canal
Deaver-Frannie Canal
Elk Lovell Canal
Frannie Canal
Garland Canal
Garland-Frannie
Globe Canal
Heart Mountain Canal
Hunt Canal
Lakeview Canal
North Fork Ditch
Sidon Canal
Willwood Canal
Wilson & Mckissack
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Daily
Spot
6
3
6
2
4
2
6
6
6
6
2
6
6
3
3,709
8,110
378
21,775
0
21,775
651
11,439
994
2,467
0
2,485
5,980
356
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1,285
3,790
5,012
16,268
15,091
16,268
509
6,618
1,504
989
0
4,990
5,418
152
12,098
15,610
18,887
52,044
44,426
52,044
3,116
24,201
6,102
8,352
1,375
13,412
16,713
765ff
14,255
15,765
19,146
45,709
47,007
45,709
2,843
35,768
5,754
12,464
2,120
13,407
13,890
1,323
16,742
16,940
22,274
54,837
53,150
54,837
3,682
41,836
6,698
14,724
2,100
15,531
21,743
1,790
15,153
17,225
20,962
48,835
47,487
48,835
3,301
35,301
6,435
13,601
1,645
15,687
19,128
1,311
9,586
15,825
16,761
37,793
38,497
37,793
3,010
22,823
5,916
9,117
1,605
12,591
14,058
775
72,828
93,265
103,419
277,262
245,658
277,262
17,111
177,985
33,401
61,713
8,845
78,104
96,929
6,472
Big Horn Lake Anita Ditch
Bernie
Dunshee
Frieze
Hatten
High Line
Kershner
McDonald (Shell Canal)
Porter
Shell Canal
Whaley
Whaley Cemetary (Howard En
Daily
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
Spot
0
2
3
3
1
1
2
3
3
3
3
2
--
115
87
172
322
350
48
1,121
569
1,152
795
1,299
--
0
0
0
0
0
0
0
0
0
0
0
--
0
0
0
0
0
0
0
0
0
0
0
--
0
0
0
0
0
0
0
0
0
0
0
--
0
0
0
0
0
0
0
0
0
0
0
--
0
0
0
0
0
0
0
0
0
0
0
--
21
85
76
12
0
215
931
2
670
180
172
--
214
164
646
174
260
522
3,655
788
2,676
1,369
756
--
171
184
1,064
191
430
555
4,902
1,781
3,700
1,248
954
--
84
337
874
300
745
546
5,942
1,563
3,867
1,328
837
--
162
323
836
256
715
529
5,166
1,543
3,294
1,189
749
--
133
206
575
231
447
446
3,827
1,122
2,647
1,004
601
--
901
1,386
4,244
1,486
2,947
2,860
25,544
7,366
18,005
7,113
5,369


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