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

Green River Basin Water Plan
Technical Memoranda

SUBJECT: Green River Basin Plan
Irrigation Diversion Operation and Description

PREPARED BY: Pat Tyrrell, Jennifer Russell, States West Water Resources


Water Division IV

District 6


Big Sandy Ditch, Big Sandy River

Diversion Description: Diversion consists of a wood headgate. No diversion dam exists.1

Diversion Location:
Source: Big Sandy River, Trib. Green River
Section, Township, Range: 14, 30, 105

Conveyance Description: Open Channel Canal, approximately 5.5 miles in length.1

Wyoming Water Rights Summary:

Priority Date
(M-D-Y)
Permit
Number
Permitted Use Acres Flow
(cfs)
Cumulative
Flow (cfs)
Comments
12-12-1900 2957 Irrigation 33.00 0.47 0.47 Originally named Johnson & Gasswint Ditch
11-25-1901 3566 Domestic, Irrigation, Stock 350.00 5.00 5.47 POD/MOC change from Tunnel Ditch
09-04-1905 1427E Domestic, Irrigation, Stock 516.00 7.36 12.83 Originally named Johnson & Gasswint Ditch
01-06-1915 3100E Irrigation 20.00 0.29 13.12 Originally named Johnson & Gasswint Ditch

Storage Rights: None.

Estimated Canal Losses: Typical (10%).1

Irrigation Practices: Information not available at time of report.

Crop Types / Consumptive Use: Information not available at time of report.

Return Flows: Return flows are delivered to Big Sandy River at Water Hole Draw.2

Other Operational Information: Information not available at time of report.

Sources:
1) Loren Smith, Wyoming State Engineer's Office, Fax, June 9, 2000.
2) Williams, Linda I., "A Model of the Green River Using the Wyoming Integrated River System Operation Study (WIRSOS)," M.S. Thesis, University of Wyoming, Department of Civil Engineering, December, 1995.

Big Sandy Ditch, Big Sandy River, Diversion Data

Wateryear May June July August September
Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF)
1975

14.12 840.26 17.48 1,075.04 4.94 303.47 4.47 265.78
1976 6.53 401.77 12.48 742.39 8.67 532.96 3.39 208.32 3.10 184.46
1978 11.45 704.13 16.63 989.75 11.71 720.00

4.70 279.67
1980

10.74 639.07 8.36 514.04 6.33 389.22 4.65 276.69
1981









1982

27.33 1,626.25 17.76 1,092.02 5.24 322.20

1983

10.34 615.27 9.42 579.21 4.60 282.84

1984

11.06 658.12 5.57 342.49



1985









1986









1987









1988









1989









1990









1991









1992









1993









1994









1995









1996

4.82 286.81



4.10 243.97
1997









1998





8.92 548.47 3.61 214.81

Averages: 8.99 552.95 13.44 799.74 11.28 693.68 5.57 342.42 4.10 244.23
Data in italics from USGS gaging station 0061040.00, see attached data sheets.
Blank cells are due to missing/insufficient data.
Average = Average Flow for ENTIRE month. Monthly Total = Total Volume used during month.
See Methodology section for explanations.
Spot data readings used in calculating averages in table on following pages.

Data:

1980: 5/20, 6 cfs; 5/29, 5 cfs; 6/3, 7 cfs; 6/10, 11 cfs; 6/17, 9 cfs; 6/18, 13 cfs; 6/23, 13 cfs; 7/9, 11 cfs; 7/15, 8 cfs; 7/24, 6 cfs; 7/28, 6 cfs; 8/8, 5 cfs; 8/12, 5 cfs; 8/21, 8 cfs; 9/22, 4 cfs; 9/29, 4 cfs.

1982 (all est): 6/3, 30 cfs; 6/22, 30 cfs; 7/8, 22 cfs; 7/12, 15 cfs; 7/23, 20 cfs; 8/5, off; 8/30, 12 cfs.

1983: 5/17, off; 6/17, 12 cfs; 6/29, 12 cfs; 7/19, 9 cfs; 7/27, 8 cfs; 8/22, 3 cfs; 9/12, 6 cfs.

1984: 6/1, 12 cfs; 6/12, 10 cfs; 6/29, 12 cfs; 7/5, 11 cfs; 7/20, 1.5 cfs (est); 7/25, 3 cfs (est); 9/25, 6 cfs.

1996: 6/11, 5 cfs (est); 6/28, 12 cfs (est); 9/4, 7.5 cfs (est); 9/24, 4.8 cfs.

1997: 7/21, 9.4 cfs; 8/1, 10.1 cfs; 8/11, 10.5 cfs (est).

1998: 5/13, 8 cfs (est); 7/29, 11.9 cfs; 8/20, 8 cfs (est); 9/17, 6.6 cfs.

Supply: 1980, average; 1981, slightly below average; 1982, average; 1983, above average; 1984, above average; 1985, slightly below average; 1986, average; 1987, average; 1988, below average; 1989, below average; 1990, below average; 1991, slightly below average; 1992; below average; 1993, slightly below average; 1994, below average; 1995, slightly above average; 1996, average; 1997, average; 1998, slightly above average.

Source: State Engineer's Office, Annual Hydrographers' Reports.

BIG SANDY RIVER - BIG SANDY DITCH STATION NO. 006140.00
LATITUDE 0-00-00 LONGITUDE 0-00-00
SECTION 0 TOWNSHIP 0 RANGE 0 P.M.
ELEVATION UNKNOWN DRAINAGE AREA UNKNOWN
NONCONTRIBUTING AREA UNKNOWN BASIN UNKNOWN
DATA FROM WATER COMMISSIONERS (P)

MEAN DAILY FLOW IN CFS BY WATER YEAR
1975
DAY OCT NOV DEC JAN FEB MAR APR MAY JUNE JULY AUG SEPT DAY
1 ** ** ** ** ** ** ** ** 10.00 13.60 5.00 3.00 1
2 ** ** ** ** ** ** ** ** 10.00 13.50 5.00 3.00 2
3 ** ** ** ** ** ** ** ** 10.00 13.50 5.00 3.00 3
4 ** ** ** ** ** ** ** ** 15.25 13.50 5.00 ** 4
5 ** ** ** ** ** ** ** ** 15.00 13.50 5.00 ** 5
6 ** ** ** ** ** ** ** ** 15.00 13.50 5.00 ** 6
7 ** ** ** ** ** ** ** ** 12.00 13.50 5.00 ** 7
8 ** ** ** ** ** ** ** ** 12.00 13.50 5.00 ** 8
9 ** ** ** ** ** ** ** ** 11.00 13.30 5.00 ** 9
10 ** ** ** ** ** ** ** ** 11.00 13.30 5.00 ** 10
11 ** ** ** ** ** ** ** ** 10.81 21.30 5.00 ** 11
12 ** ** ** ** ** ** ** ** 11.00 21.30 5.00 ** 12
13 ** ** ** ** ** ** ** ** 12.00 21.30 5.00 10.00 13
14 ** ** ** ** ** ** ** ** 13.00 21.30 5.00 10.00 14
15 ** ** ** ** ** ** ** ** 13.00 21.30 5.00 9.00 15
16 ** ** ** ** ** ** ** ** 14.00 21.30 5.00 9.00 16
17 ** ** ** ** ** ** ** ** 14.00 21.30 5.00 9.00 17
18 ** ** ** ** ** ** ** ** 15.00 21.30 5.00 8.00 18
19 ** ** ** ** ** ** ** 9.11 15.00 21.30 5.00 8.00 19
20 ** ** ** ** ** ** ** ** 15.50 21.30 5.00 7.00 20
21 ** ** ** ** ** ** ** ** 16.00 21.30 5.00 7.00 21
22 ** ** ** ** ** ** ** 9.11 16.00 21.00 5.00 6.00 22
23 ** ** ** ** ** ** ** 9.00 16.00 21.00 5.00 6.00 23
24 ** ** ** ** ** ** ** 9.00 18.00 21.00 5.00 6.00 24
25 ** ** ** ** ** ** ** 9.00 18.07 20.00 5.00 5.00 25
26 ** ** ** ** ** ** ** 9.00 18.00 19.00 5.00 5.00 26
27 ** ** ** ** ** ** ** 9.00 18.00 18.00 5.00 5.00 27
28 ** ** ** ** ** ** ** 9.50 17.00 17.00 5.00 5.00 28
29 ** ** ** **
** ** 9.78 17.00 16.00 5.00 5.00 29
30 ** ** ** **
** ** 10.00 15.00 15.00 4.00 5.00 30
31 **
** **
**
10.00
5.00 4.00
31
TOTAL ** ** ** ** ** ** ** 102.50* 422.63 542.00 153.00 134.00*
MEAN ** ** ** ** ** ** ** 9.32* 14.12 17.48 4.94 6.38*
AC-FT ** ** ** ** ** ** ** 203.31* 840.26 1075.04 303.47 265.78*
** INDICATES MISSING DATA
* INDICATES COMPUTED FROM INCOMPLETE DATA
E INDICATES ESTIMATED VALUE

MEAN DAILY FLOW IN CFS BY WATER YEAR
1976
DAY OCT NOV DEC JAN FEB MAR APR MAY JUNE JULY AUG SEPT DAY
1 ** ** ** ** ** ** ** ** ** 18.6 3 4 1
2 ** ** ** ** ** ** ** ** ** 19 3 4.07 2
3 ** ** ** ** ** ** ** ** ** 19 3 4 3
4 ** ** ** ** ** ** ** ** ** 18 3 3 4
5 ** ** ** ** ** ** ** ** ** 18 3.2 3 5
6 ** ** ** ** ** ** ** ** ** 18 3 2 6
7 ** ** ** ** ** ** ** ** ** 17.5 3 2 7
8 ** ** ** ** ** ** ** ** ** 17 3 2 8
9 ** ** ** ** ** ** ** ** ** 16 3 1 9
10 ** ** ** ** ** ** ** ** 20.22 15 3.2 1 10
11 ** ** ** ** ** ** ** ** 20 13 3 3 11
12 ** ** ** ** ** ** ** ** 20 10 3 3 12
13 ** ** ** ** ** ** ** 9.95 18 9 3 3 13
14 ** ** ** ** ** ** ** 10 16 9 3 3 14
15 ** ** ** ** ** ** ** 10 16 3.2 3 3 15
16 ** ** ** ** ** ** ** 11 16 3 3 3.48 16
17 ** ** ** ** ** ** ** 11 16 3 3.2 4 17
18 ** ** ** ** ** ** ** 12 17 3 3 4 18
19 ** ** ** ** ** ** ** 12 17 3.2 3 4 19
20 ** ** ** ** ** ** ** 12.61 18 3 3.2 4 20
21 ** ** ** ** ** ** ** 13 18 3 3 3 21
22 ** ** ** ** ** ** ** 13 18 3 3 3 22
23 ** ** ** ** ** ** ** 14 18 3 3.2 3 23
24 ** ** ** ** ** ** ** 14 18.07 3 3 3.2 24
25 ** ** ** ** ** ** ** 15 18 3 3 3 25
26 ** ** ** ** ** ** ** 15 18 3 5.03 3 26
27 ** ** ** ** ** ** ** 15 18 3 5 3 27
28 ** ** ** ** ** ** ** 15 18 3 5 3 28
29 ** ** ** ** ** ** ** ** 18 3.2 5 3 29
30 ** ** ** **
** ** ** 18 3 5 5.25 30
31 **
** **
**
18
34
31
TOTAL ** ** ** ** ** ** ** 202.56* 374.29* 268.7 105.03 93
MEAN ** ** ** ** ** ** ** 12.66* 17.82* 8.67 3.39 3.1
AC-FT ** ** ** ** ** ** ** 4101.77* 742.39* 532.96 208.32 184.46
** INDICATES MISSING DATA
* INDICATES COMPUTED FROM INCOMPLETE DATA
E INDICATES ESTIMATED VALUE

MEAN DAILY FLOW IN CFS BY WATER YEAR
1978
DAY OCT NOV DEC JAN FEB MAR APR MAY JUNE JULY AUG SEPT DAY
1 ** ** ** ** ** ** ** 8 16 16 ** ** 1
2 ** ** ** ** ** ** ** 8 16 16 ** ** 2
3 ** ** ** ** ** ** ** 8 16 16 ** ** 3
4 ** ** ** ** ** ** ** 8 16 16 ** ** 4
5 ** ** ** ** ** ** ** 8 16 16 ** 5 5
6 ** ** ** ** ** ** ** 8 16 15 ** 5 6
7 ** ** ** ** ** ** ** 8 16 15 ** 5 7
8 ** ** ** ** ** ** ** 9 16 15 ** 5 8
9 ** ** ** ** ** ** ** 9 16 14 ** 5 9
10 ** ** ** ** ** ** ** 10 16 14 ** 5 10
11 ** ** ** ** ** ** ** 10 16 14 ** 5 11
12 ** ** ** ** ** ** ** 10 16 14 ** 5 12
13 ** ** ** ** ** ** ** 10 16 14 ** 5 13
14 ** ** ** ** ** ** ** 10 16 14 ** 5 14
15 ** ** ** ** ** ** ** 11 16 14 ** 5 15
16 ** ** ** ** ** ** ** 11 17 14 ** 5 16
17 ** ** ** ** ** ** ** 12 17 14 ** 5 17
18 ** ** ** ** ** ** ** 12 17 14 ** 5 18
19 ** ** ** ** ** ** ** 13 17 13 ** 5 19
20 ** ** ** ** ** ** ** 13 18 13 ** 6 20
21 ** ** ** ** ** ** ** 14 19 13 ** 7 21
22 ** ** ** ** ** ** ** 14 19 13 ** 7 22
23 ** ** ** ** ** ** ** 14 19 12 ** 7 23
24 ** ** ** ** ** ** ** 14 18 12 ** 7 24
25 ** ** ** ** ** ** ** 14 17 11 ** 6 25
26 ** ** ** ** ** ** ** 14 17 11 ** 6 26
27 ** ** ** ** ** ** ** 14 16 ** ** 5 27
28 ** ** ** ** ** ** ** 15 16 ** ** 5 28
29 ** ** ** **
** ** 15 16 ** ** 5 29
30 ** ** ** **
** ** 15 16 ** ** 5 30
31 **
** **
**
16
** **
31
TOTAL ** ** ** ** ** ** ** 355 499 363.00* * 141.00*
MEAN ** ** ** ** ** ** ** 11.45 16.63 13.96* * 5.42*
AC-FT ** ** ** ** ** ** ** 704.13 989.75 720.00* * 279.67*
** INDICATES MISSING DATA
* INDICATES COMPUTED FROM INCOMPLETE DATA
E INDICATES ESTIMATED VALUE

Source: Wyoming Water Resources Data System, March 20, 2000.


Continental Divide Ditch, Little Sandy Creek

Diversion Description: Diversion consists of a single 36" diameter Waterman slide gate. No diversion dam exists.1

Diversion Location:
Source: Little Sandy Creek, Trib. Big Sandy River, Trib. Green River
Section, Township, Range: 25, 30, 104

Conveyance Description: Open Channel Canal, approximately 8 miles in length.1

Wyoming Water Rights Summary:

Priority Date
(M-D-Y)
Permit
Number
Permitted Use Acres Flow
(cfs)
Cumulative
Flow (cfs)
Comments
05-19-1902 3918 Domestic, Irrigation, Stock 455.00 6.50 6.50
09-07-1905 1422E Irrigation, Stock 268.00 3.83 10.33
12-17-1909 2140E Irrigation, Stock 204.50 2.92 13.25 Permitted name: Enl. Continental

Storage Rights: None.

Estimated Canal Losses: Higher than typical losses (25%) exist.1

Irrigation Practices: Information not available at time of report.

Crop Types / Consumptive Use: Information not available at time of report.

Return Flows: Return flows are delivered to Little Sandy Creek near Zemba Ditch.2

Other Operational Information:

Sources:
1) Loren Smith, Wyoming State Engineer's Office, Fax, June 9, 2000.
2) Williams, Linda I., "A Model of the Green River Using the Wyoming Integrated River System Operation Study (WIRSOS)," M.S. Thesis, University of Wyoming, Department of Civil Engineering, December, 1995.

Contintental Divide Ditch, Little Sandy Creek, Diversion Data

Wateryear May June July August September
Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF)
1980









1981









1982




8.49 522.31


1983









1984




4.52 277.69


1985









1986









1987









1988









1989









1990









1991









1992

8.77 521.85 4.85 298.21 2.28 140.47

1993

8.24 490.31 7.54 463.62 8.67 533.10 7.93 471.87
1994



5.15 316.61 4.47 274.85 1.25 74.38
1995









1996

5.77 343.34 4.32 265.63 3.62 222.59 2.49 148.17
1997



5.60 344.50 4.33 266.23

1998 3.06 188.15



3.99 245.34 1.68 99.97

Averages: 3.06 188.15 7.59 451.83 5.78 355.51 4.56 280.43 3.34 198.60
Blank cells are due to missing/insufficient data.
Average = Average Flow for ENTIRE month. Monthly Total = Total Volume used during month.
See Methodology section for explanations.
Spot data readings used in calculating averages in table on following pages.

Data:

1980: 6/11, off.

1982: 7/12, 14 cfs; 8/5, 12 cfs.

1983: 6/29, 12 cfs; 7/7, 13 cfs; 9/12, 11 cfs.

1984: 7/5, 8 cfs; 7/25, 6 cfs.

1992: 5/26, 5.5 cfs; 6/18, 10.5 cfs; 7/15, 4.0 cfs; 8/25, 4.8 cfs; 10/8, 5.0 cfs.

1993: 5/24, 8.30 cfs; 7/1, 8.20 cfs; 8/3, 6.80 cfs; 8/26, 10.20 cfs; 9/30, 6.80 cfs.

1994: 5/11, 12.30 cfs; 7/5, 6.10 cfs; 7/7, dry; 7/12, 6.50 cfs; 8/3, 7.30 cfs; 9/7, dry; 9/22, 4.50 cfs.

1995: 6/22, 21.8 cfs; 8/17, 18.9 cfs; 9/15, 12.9 cfs.

1996: 5/20, 5.3 cfs; 6/28, 6 cfs (est); 7/31, 3 cfs (est); 8/23, 4 cfs (est); 9/24, 3 cfs (est).

1997: 6/16, 11.4 cfs; 7/2, 8.7 cfs; 7/21, 4.2 cfs; 8/1, 3.5 cfs; 8/11, 5 cfs (est); 8/26, 4.3 cfs; 9/11, 0.9 cfs.

1998: 5/13, 5.1 cfs; 6/8, 4.8 cfs; 7/29, 5.5 cfs; 8/20, 3.5 cfs; 9/17, 3 cfs (est).

Supply: 1980, average; 1981, slightly below average; 1982, average; 1983, above average; 1984, above average; 1985, slightly below average; 1986, average; 1987, average; 1988, below average; 1989, below average; 1990, below average; 1991, slightly below average; 1992; below average; 1993, slightly below average; 1994, below average; 1995, slightly above average; 1996, average; 1997, average; 1998, slightly above average.

Source: State Engineer's Office, Annual Hydrographers' Reports.


Eden Valley Irrigation and Drainage District Ditches:
Means Canal, Eden Canal, Little Sandy Canal, Eden Lateral, West Side Lateral, Farson Lateral, M-Gates, Hay Ditch

Diversion Description: Eden Valley Irrigation and Drainage District - major canals: Means Canal, Eden Canal, Little Sandy Canal, Eden Lateral, West Side Lateral, Farson Lateral, M-Gates and Hay Ditch (Lateral). The Little Sandy Diversion Dam diverts from Little Sandy River into Eden Reservoir.

Means Canal is controlled by slide gates in the Big Sandy Reservoir Dam with a capacity of 635 cfs.2 Eden Reservoir outlet is a concrete lined tunnel with constant head orifice gates and an overflow structure. The West Side Canal diverts from the Means Canal through two 48" gates. Diversion into the Eden Canal and Farson Lateral is via large (6 to 10 foot) radial gates.1

Means Canal

Diversion Location:
Source: Big Sandy and Little Sandy Rivers
Section, Township, Range: Means Canal, 11, 26, 106; Eden Canal, 30, 26, 105; Little Sandy Canal, 20, 26, 105; Eden Lateral, 1, 24, 106; West Side Lateral, 13, 26, 106; Farson Lateral, 30, 26, 105; M-Gates, 25, 26, 106; Hay Ditch, 1, 24, 106.

Conveyance Description: Earthen Canals, approximate lengths: Means Canal, 6 miles; Eden Canal, 10.8 miles; Little Sandy Canal, 1.5 miles; Eden Lateral, 8 miles; West Side Lateral, 12 miles; Farson Lateral, 4 miles; M-Gates, 5 miles; Hay Ditch, 7 miles.

Wyoming Water Rights Summary:

Eden Number 1 Ditch
Priority Date
(M-D-Y)
Permit
Number
Permitted Use Acres Flow
(cfs)
Cumulative
Flow (cfs)
Comments
11-24-1903 5718 Domestic, Irrigation 8,007.64 114.29 114.29
12-30-1905 16814 Domestic, Irrigation, Stock

114.29 Secondary Supply stored in Eden Valley Irrigation and Land Company No. 1 Reservoir (818R) (17,009.26 acres served)

Means Canal
Priority Date
(M-D-Y)
Permit
Number
Permitted Use Acres Flow
(cfs)
Cumulative
Flow (cfs)
Comments
11-24-1903 5718 Domestic, Irrigation, Stock 9,041.62 129.01 129.01 POD/MOC change from Eden No. 1 Canal.
04-24-1952 21403 Domestic, Irrigation, Stock, Municipal

129.01 Secondary Supply stored in Big Sandy Reservoir (947R) (17,009.26 acres served)

Storage Rights: Big Sandy Reservoir (947R) and Eden Reservoir (818R).

Estimated Canal Losses: All typical except Eden Canal, which is in sandy soil and is excessive (22- 30%) and West Side, which can be considered excessive at 15-18%.1

Irrigation Practices: District currently undergoing voluntary modifications from historic flood irrigation practices to gated pipe, border and row, and center pivots for salinity reduction purposes. Currently, about 8,700 acres out of 17,000 have been so modified.3

Crop Types / Consumptive Use: Irrigators typically rotate among several crops. Averages for the period 1989-1999 are: 55% grass hay, 26% alfalfa, 16% irrigated pasture, 1% each of silage, oats and barley. Occasional corn crops.

Return Flows: Means and Little Sandy canals have no returns; they deliver water to other canals. Eden Canal, Eden Lateral and Hay Ditch return to Bone Draw; Farson Lateral returns to Little Sandy River above Highway 187; M-Gates return 50% to Big Sandy River above Highway 187 and 50% to Little Sandy River above Highway 187; West Side Canal returns to Big Sandy River below confluence with Little Sandy River.1

Other Operational Information: When Big Sandy Reservoir is spilling, the water is used as "river water" for direct flow rights. Under other operations, all ditches operate on a call basis when operators request water. Releases are then made from Big Sandy Reservoir added to a constant delivery of 30-50 cfs (80 cfs maximum) from Eden Reservoir via Little Sandy Canal to meet total demand. Typical flows are as follows: Means Canal, 300-450 cfs typical (470 maximum); West Side Lateral, 100 cfs typical, 120 cfs maximum; M-Gates, 25 cfs; Eden Canal, 300 cfs typical; Farson Lateral, 80 cfs typical; Eden Lateral 175 cfs typical; Hay Ditch, 20 cfs typical.1

The system typically operates from May 15 to the first part of July. It may start earlier in dry years. After a week or so for harvest, system comes back on, but irrigates less intensively for the remainder of the season. Irrigation continues until September 15th, when it is shut down until the following spring.1

Sources:
1) Ralph Delambert, EVIDD, Interview, May 10, 2000.
2) USBR DataWeb information; http://dataweb.usbr.gov/html/eden.html [new link 10/2009 http://www.usbr.gov/projects/Project.jsp?proj_Name=Eden%20Project]
3) Karen Johnson, District Conservationalist, USDA NRCS Farson Field Office, Interview, May 10, 2000

Eden Valley Irrigation and Drainage District Ditches, Diversion Data

No Diversion Data Available.


Zemba Ditch, Little Sandy Creek

Diversion Description: Diversion consists of a wood headgate. No diversion dam exists.1

Diversion Location:
Source: Little Sandy Creek, Trib. Big Sandy River, Trib. Green River
Section, Township, Range: 9, 29, 104

Conveyance Description: Open Channel Canal, approximately 3½ miles in length.1

Wyoming Water Rights Summary:

Priority Date
(M-D-Y)
Permit
Number
Permitted Use Acres Flow
(cfs)
Cumulative
Flow (cfs)
Comments
11-06-1905 6977 Domestic, Irrigation, Stock 441.00 6.30 6.30
05-16-1911 2450E Domestic, Irrigation, Stock 108.00 1.54 7.84
06-23-1914 3021E Irrigation, Stock 277.50 3.96 11.80

Storage Rights: None.

Estimated Canal Losses: Typical (10%).1

Irrigation Practices: Information not available at time of report.

Crop Types / Consumptive Use: Information not available at time of report.

Return Flows: Return flows are delivered to Little Sandy Creek at Long Draw.2

Other Operational Information: Information not available at time of report.

Sources:
1) Loren Smith, Wyoming State Engineer's Office, Fax, June 9, 2000.
2) Williams, Linda I., "A Model of the Green River Using the Wyoming Integrated River System Operation Study (WIRSOS)," M.S. Thesis, University of Wyoming, Department of Civil Engineering, December, 1995.

Zemba Ditch, Little Sandy Creek, Diversion Data

Wateryear May June July August September
Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF) Average (cfs) Monthly Total (AF)
1980

10.48 623.38 12.09 743.47



1981









1982



12.30 756.30 0.24 14.76

1983

16.28 968.73





1984

5.30 315.61 6.03 370.67



1985









1986









1987









1988









1989









1990









1991









1992









1993





5.82 357.95 1.00 59.57
1994



8.33 512.19 0.03 1.84 0.75 44.63
1995









1996









1997









1998










Averages:

10.69 635.91 9.69 595.66 2.03 124.88 0.88 52.10
Blank cells are due to missing/insufficient data.
Average = Average Flow for ENTIRE month. Monthly Total = Total Volume used during month.
See Methodology section for explanations.
Spot data readings used in calculating averages in table on following pages.

Data:

1980: 6/11, 10 cfs; 6/11, 15 cfs; 7/9, 17 cfs; 8/8, off.

1981: 6/4, 21 cfs; 7/22, 8/5, 8/27, off.

1982: (all est): 6/22, 18 cfs; 7/8, 14 cfs; 7/12, 15 cfs; 7/23, 12 cfs; 8/5, 8/30, off.

1983: (all est): 6/1, 12 cfs; 6/29, 20 cfs; 7/7, 22 cfs.

1984: 6/14, 8 cfs (est); 7/9, 12 cfs (est); 7/25, off.

1993: 8/3, 12.00 cfs; 8/26, 2.50 cfs; 9/30, off.

1994: 5/11, 14.00 cfs; 7/5, 17.00 cfs; 7/7, 9.00 cfs; 7/12, 10.60 cfs; 8/3, off; 9/7, dry; 9/22, 3.00 cfs.

1995: 5/16, 6.0 cfs; 6/22, 25 cfs (est); 8/17, 5.0 cfs; 9/15, 4.3 cfs.

1996: 7/31, 12 cfs (est); 9/4, 4 cfs (est).

Supply: 1980, average; 1981, slightly below average; 1982, average; 1983, above average; 1984, above average; 1985, slightly below average; 1986, average; 1987, average; 1988, below average; 1989, below average; 1990, below average; 1991, slightly below average; 1992; below average; 1993, slightly below average; 1994, below average; 1995, slightly above average; 1996, average; 1997, average; 1998, slightly above average.

Source: State Engineer's Office, Annual Hydrographers' Reports.