Boulder Lake, located in Sublette, Wyoming, is a privately owned reservoir with a primary purpose of irrigation.
Wind
Humidity
Built in 1964, this Earth dam stands at 25 feet in height with a hydraulic height of 15 feet. The reservoir has a storage capacity of 37,800 acre-feet and covers a surface area of 1,676 acres, drawing water from Boulder Creek.
With a significant hazard potential, Boulder Lake is regulated and inspected by the State of Wyoming, ensuring its structural integrity and safety. The dam features an uncontrolled spillway with a width of 60 feet and two slide (sluice gate) outlet gates. The reservoir's drainage area spans 126.1 square miles, with a maximum discharge capacity of 6,190 cubic feet per second.
Enthusiasts of water resources and climate will find Boulder Lake an intriguing site, with its unique design and historical significance in providing irrigation water to the surrounding area. The dam's moderate risk assessment and regular inspection schedule highlight the importance of maintaining this crucial water resource for the community of Boulder and beyond.
Year Completed |
1964 |
Dam Length |
380 |
Dam Height |
25 |
River Or Stream |
BOULDER CREEK |
Primary Dam Type |
Earth |
Surface Area |
1676 |
Hydraulic Height |
15 |
Drainage Area |
126.1 |
Nid Storage |
37800 |
Structural Height |
25 |
Outlet Gates |
Slide (sluice gate) - 2 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
25 |