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

Diversion Description: The diversion gate structure consists of a deteriorated wooden headwall, a single 30-inch CMP squash pipe, and a 30-inch steel slide gate. The headgate is located approximately 100 yards east of the main river channel. River is dammed during low flows to divert into the ditch.
Myers No. 1 Headgate
Diversion Location: Diversion is on the Upper Bear in Wyoming. Irrigated lands are located in Wyoming as shown in the location map hereafter.

Latitude   N 41° 07' 47.9"
Longitude   W 110° 53' 02.8"

Conveyance Description: Open Channel Ditch. Ditch follows old stream channel.1

Direct Flow Water Rights:2

Priority Date Permit
Number		 Permitted Use Permitted
Acres		 Flow
(CFS)		 Cumulative
(CFS)		 Comments
08-07-1901 3550 Irrigation 305 4.35 4.35

Associated Storage Rights:

Reservoir Shareholder Volume
(Acre-ft)		 Est. % of Shares Used this Diversion3 Comments
Sulphur Creek Broken Circle Cattle Co. 142 100% By Exchange


click to enlarge

Irrigation Practices: Land is all flood irrigated.3

Estimated Diversion Efficiency: Canal losses are relatively high due to porous nature of soils in the higher reaches of the Upper Bear.

Calculated Diversion Efficiency = Conveyance Efficiency X Application Efficiency:
Conveyance Efficiency: 50%
Application Efficiency: 55%
Overall Diversion Efficiency: 27%

Conveyance efficiency is estimated by total length of main canal. Application efficiency for flood irrigation and sprinkler irrigation is estimated at 55% and 85% respectively.

Crop Types / Consumptive Use: Water is used entirely to irrigate mixed meadow grasses.3

Return Flows: Return flow is intercepted by the Booth Canal (approx. 50%) with the remainder entering Sulphur Creek below the reservoir (approx. 50%).

The following return flow pattern was adopted for modeling in this study are as follows: 

	
		Month
      (after initial Diversion)	 Percent of Return
		0			70%
		1			20%
		2		        10%
				       100%

Other Operational Information: The Myers No. 1 ditch gains significant flow from return flows associated with upstream canals, primarily Lewis and Myers No. 2.3

References:

  1. USDA -Soil Conservation Service Economic Research Service-Forest Service in Cooperation with the States of Idaho, Utah, Wyoming, Irrigation Conveyance Systems, Working Paper for the Bear River Basin Type IV Study, Idaho-Utah-Wyoming, April 1976

  2. Water rights summary obtained from State Engineer Interstate Reglist - revised April 14, 1999

  3. Irrigation practices based on field investigation and interview with Mr. Don Shoemaker, Water Hydrographer-Commissioner - November 6,1999.

  4. State of Utah Natural Resources, Water Budget Studies - Utah, Bear River Study Area, September 1994.

Monthly Diversion Records
Myers No. 1

YEAR MAY JUNE JULY AUGUST SEPTEMBER
Total of Daily Ave for Month Average
CFS		 Monthly Total
Ac-Ft		 Total of Daily Ave for Month Average
CFS		 Monthly Total
Ac-Ft		 Total of Daily Ave for Month Average
CFS		 Monthly Total
Ac-Ft		 Total of Daily Ave for Month Average
CFS		 Monthly Total
Ac-Ft		 Total of Daily Ave for Month Average
CFS		 Monthly Total
Ac-Ft
*1970














1971 0 0.0 0.0 192 6.4 380.8 249 8.0 493.9 125 4.0 247.9 47 1.6 93.2
1972 19 0.6 37.7 200 6.7 396.7 164 5.3 325.3 160 5.2 317.4 48 1.6 95.2
1973 0 0.0 0.0 154 5.1 305.5 128 4.1 253.9 25 0.8 49.6 0 0.0 0.0
1974 54 1.7 107.1 140 4.7 277.7 120 3.9 238.0 50 1.6 99.2 0 0.0 0.0
1975 0 0.0 0.0 43 1.4 85.3 209 6.7 414.5 1 0.0 2.0 56 1.9 111.1
1976 1 0.0 2.0 192 6.4 380.8 142 4.6 281.7 123 4.0 244.0 21 0.7 41.7
1977 25 0.8 49.6 64 2.1 126.9 74 2.4 146.8 27 0.9 53.6 0 0.0 0.0
1978 0 0.0 0.0 30 1.0 59.5 170 5.5 337.2 87 2.8 172.6 27 0.9 53.6
1979 26 0.8 51.6 117 3.9 232.1 192 6.2 380.8 122 3.9 242.0 0 0.0 0.0
1980 189 6.1 374.9 141 4.7 279.7 236 7.6 468.1 81 2.6 160.7 0 0.0 0.0
1981 77 2.5 152.7 72 2.4 142.8 183 5.9 363.0 91 2.9 180.5 0 0.0 0.0
1982 28 0.9 55.5 187 6.2 370.9 60 1.9 119.0 149 4.8 295.5 26 0.9 51.6
1983 0 0.0 0.0 15 0.5 29.8 91 2.9 180.5 65 2.1 128.9 0 0.0 0.0
1984 1 0.0 2.0 11 0.4 21.8 212 6.8 420.5 204 6.6 404.6 8 0.3 15.9
1985 0 0.0 0.0 155 5.2 307.4 300 9.7 595.0 236 7.6 468.1 119 4.0 236.0
1986 28 0.9 55.5 19 0.6 37.7 159 5.1 315.4 151 4.9 299.5 103 3.4 204.3
1987 0 0.0 0.0 58 1.9 115.0 122 3.9 242.0 168 5.4 333.2 43 1.4 85.3
1988 4 0.1 7.9 114 3.8 226.1 72 2.3 142.8 67 2.2 132.9 75 2.5 148.8
1989 0 0.0 0.0 6 0.2 11.9 167 5.4 331.2 133 4.3 263.8 31 1.0 61.5
1990 132 4.3 261.8 89 3.0 176.5 67 2.2 132.9 79 2.5 156.7 8 0.3 15.9
1991 0 0.0 0.0 165 5.5 327.3 136 4.4 269.8 62 2.0 123.0 0 0.0 0.0
1992 59 1.9 117.0 146 4.9 289.6 141 4.5 279.7 71 2.3 140.8 24 0.8 47.6
1993 24 0.8 47.6 91 3.0 180.5 129 4.2 255.9 33 1.1 65.5 1 0.0 2.0
1994 269 8.7 533.6 175 5.8 347.1 137 4.4 271.7 143 4.6 283.6 71 2.4 140.8
1995 42 1.4 83.3 63 2.1 125.0 73 2.4 144.8 106 3.4 210.2 161 5.4 319.3
1996 143 4.6 283.6 212 7.1 420.5 88 2.8 174.5 117 3.8 232.1 51 1.7 101.2
1997 66.3 2.1 131.5 99.7 3.3 197.8 147.9 4.8 293.4 68.1 2.2 135.1 43.1 1.4 85.5
1998 44.9 1.4 89.1 56.8 1.9 112.7 149.9 4.8 297.3 304.6 9.8 604.2 32 1.1 63.5
1999 53 1.7 105.1 204 6.8 404.6 31 1.0 61.5 1 0.0 2.0 1 0.0 2.0

AVERAGES
1.4 87.9
3.7 219.7
4.6 283.8
3.4 208.6
1.1 68.1

Notes:
*1. No published records are available for this diversion for 1970

To the Bear River Basin Plan Water Plan