J-J No.
Wind
Humidity
3, also known as Pocket Lake, is a privately owned rockfill dam located in Sublette, Wyoming. Built in 1927, this dam serves primarily for irrigation purposes, with a storage capacity of 101 acre-feet and a normal storage of 64 acre-feet. The dam stands at 9 feet high and spans 262 feet in length, with a spillway width of 0 feet.
Despite being classified as having a low hazard potential, J-J No. 3 is considered to have a high risk due to its condition assessment being rated as fair. The dam is inspected every 5 years, with the last inspection conducted in August 2020. While there are no associated structures with this dam, it is regulated by the State of Wyoming and has state jurisdiction, permitting, inspection, and enforcement in place.
Water resource and climate enthusiasts will find J-J No. 3 an intriguing structure due to its historical significance, unique design, and the role it plays in supporting irrigation in the region. With its location on Pocket Creek and the potential risks associated with its condition, this dam serves as a reminder of the importance of proper maintenance and management of water resources for sustainable use in the face of changing climate conditions.
Year Completed |
1927 |
Dam Length |
262 |
Dam Height |
9 |
River Or Stream |
POCKET CREEK |
Primary Dam Type |
Rockfill |
Surface Area |
8 |
Hydraulic Height |
5 |
Nid Storage |
101 |
Structural Height |
9 |
Outlet Gates |
Other Controlled - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
9 |