Miller #1 - Second Enlargement is a privately owned dam located in Big Horn, Wyoming, specifically on the Carrol Draw river.
Wind
Humidity
Built in 1972 by designer Mike W. Donnell, this earth dam stands at a height of 34 feet with a structural height of 39 feet and a length of 791 feet. The primary purpose of this dam is for irrigation, with a storage capacity of 315 acre-feet and a normal storage of 182 acre-feet.
Despite being classified as low hazard potential with a fair condition assessment, the dam has a moderate risk rating of 3. It features an uncontrolled spillway type with a width of 8 feet and an outlet gate in the form of a single valve. The last inspection was conducted in October 2017 with a frequency of every 5 years, indicating a need for regular monitoring and maintenance to ensure the safety and functionality of the structure. Overall, Miller #1 - Second Enlargement serves various purposes including fire protection, stock watering, and small fish pond in addition to irrigation, making it a crucial resource for the local community.
Year Completed |
1972 |
Dam Length |
791 |
Dam Height |
34 |
River Or Stream |
CARROL DRAW |
Primary Dam Type |
Earth |
Surface Area |
17.37 |
Hydraulic Height |
29 |
Drainage Area |
4.5 |
Nid Storage |
315 |
Structural Height |
39 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Rock, Soil |
Nid Height |
39 |
Shell Creek Near Shell
|
74cfs |
Bighorn River At Kane
|
1340cfs |
Shell Creek Above Shell Creek Reservoir
|
13cfs |
Bighorn River At Basin
|
1030cfs |
Little Bighorn River At State Line Nr Wyola Mt
|
84cfs |
West Pass Creek Near Parkman
|
10cfs |