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Northeast Wyoming River Basins Water Plan
Technical Memoranda
| SUBJECT: |
Appendix J
Storage Operation and Description
BETTY NO. 1 |
|
| PREPARED BY: |
HKM Engineering Inc. |
|
| DATE: |
March 2002 |
KEY STORAGE FACILITIES
| Reservoir: |
BETTY NO. 1 |
 |
| Date: |
22 Feb. 2001 |
| Location: |
SESW 35, T40N, R72W |
| Owner: |
RANCH CO. (STEVE DILTS) |
| Year of Construction: |
1954 |
| Enlargement History: |
1956 |
| Total Storage: |
2029 acre-feet |
| Active Storage: |
1345 acre-feet |
| Dead Storage: |
28.30 acre-feet |
| Area/Capacity Data: |
(Source: “Map to Accompany Applications for First Enlargement, Betty
No. 1 Reservoir, Betty No. 2 Ditch, and Betty No. 3 Ditch,” on file in
Safety of Dams office, SEO, Cheyenne, Wyoming.) |
|
| Contour |
Area (acres) |
Average |
Capacity (af) |
|---|
| 80 |
1.8 |
|
|
|
|
5.66 |
28.30 |
| 85 |
9.52 |
|
|
|
|
16.29 |
81.45 |
| 90 |
23.06 |
|
|
|
|
35.39 |
176.95 |
| 95 |
47.72 |
|
|
|
|
74.92 |
374.60 |
| 100 |
102.12 |
|
|
| PRESENT AVAILABLE CAPACITY |
661.30 |
| 100 |
102.12 |
|
|
|
|
136.75 |
683.75 |
| 105 |
171.38 |
|
|
|
Proposed Enlargement |
683.75 |
|
Proposed Total Capacity |
1345.05 |
|
| Dam Construction Type: |
Earth Fill |
| Outlet: |
Eight-inch welded steel pipe in dam;
Twelve-inch welded steel pipe in dike to east of dam |
| Spillway: |
East (dam) spillway:
100 feet wide at base, 140 feet wide at dam crest, walls at 3:1
slope. Max flow: 1778.40 cfs |
|
West (dike) spillway:
515-foot-wide notch cut at approx. 3:1 slope, 5 feet deep at deepest
point. Max flow: 11,553.65 cfs |
| End-of-Month Storage Records: |
No |
| Water Rights: |
(Source: Tabulation of Adjudicated Surface Water Rights of the State of
Wyoming, Water Division Number Two, Oct. 1999) |
| Reservoir |
Permit Number |
Permitted Use |
Priority Date |
Volume (af) |
Headgate Location (S-T-R) |
|---|
| Betty No. 1 Res. |
6124R |
I,S |
03-18-1954 |
661.3 |
35-40-072 |
| First Enl. Betty No. 1 |
6322R |
I,S |
04-24-1956 |
683.75 |
35-40-072 |
|
| Designated Use: |
Irrigation |
| Associated Irrigation Diversions: |
Betty No. 2 and Betty No. 3 ditches |
| Associated Industrial Diversions: |
None |
| Operational Discussion: |
Betty No. 1 Reservoir receives water from Bear and Lonetree
Creeks, and according to the permit that accompanies its first
enlargement petition, two centrifugal pumps pull water from the
reservoir to water the ditches on either side of the headgates. |
| References: |
Map to Accompany Applications for First Enlargement Betty No. 1
Reservoir, Betty No. 2 Ditch, and Betty No. 3 Ditch, John C. Dilts,
Douglas, Wyoming, 25 Sept. 1956. |
Betty No. 1 Dam cross section (Source: “Map to Accompany Applications for First Enlargement, Betty No. 1 Reservoir, Betty No. 2 Ditch, and
Betty No. 3 Ditch,” on file in Safety of Dams office, SEO, Cheyenne, Wyoming.):
Net Evaporation from Betty No. 1 Reservoir:
| Lewis Annual Evaporation (in.) |
45 |
| Total Storage (acre-feet) |
2,029 |
|
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
|
|---|
| Average percent of storage |
52.1 |
55.7 |
63.8 |
67.0 |
73.3 |
74.9 |
73.5 |
71.3 |
69.2 |
51.6 |
51.3 |
51.5 |
|
| Generated storage (acre-feet) |
1057 |
1129 |
1294 |
1359 |
1488 |
1519 |
1491 |
1447 |
1405 |
1046 |
1041 |
1044 |
|
| Corresponding area (acres) |
121.3 |
125.1 |
133.6 |
136.9 |
143.5 |
145.1 |
143.7 |
141.4 |
139.3 |
120.8 |
120.5 |
120.7 |
|
| Calculations: |
| Monthly Lewis Evap. (inches) |
1.215 |
1.125 |
1.755 |
3.6 |
5.175 |
5.895 |
7.695 |
7.02 |
5.175 |
3.42 |
1.755 |
1.17 |
|
| Monthly Precipitation (inches) |
0.25 |
0.25 |
0.75 |
1.75 |
2.75 |
2.25 |
1.75 |
1.25 |
1.25 |
0.75 |
0.75 |
0.25 |
|
| Net Evaporation (inches) |
0.965 |
0.875 |
1.005 |
1.85 |
2.425 |
3.645 |
5.945 |
5.77 |
3.925 |
2.67 |
1.005 |
0.92 |
TOTAL |
| Total Net Evaporation (acre-feet) |
10 |
9 |
11 |
21 |
29 |
44 |
71 |
68 |
46 |
27 |
10 |
9 |
355 |
|
