Little Sage Creek Reservoir
Little Sage Creek Reservoir is a gravity dam located in Carbon County, Wyoming, built in 1969. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Little Sage Creek Reservoir
The primary purpose of Little Sage Creek Reservoir is debris control. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion. The dam is owned by Doi Blm (federal). It impounds the Little Sage Creek.
The dam stands 26 feet tall and stretches 934 feet across, creates a reservoir covering 132 acres, and has a maximum storage capacity of 380 acre-feet. Completed in 1969, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 09/28/2016. That was 9 years ago, which is on the longer end for a high-hazard structure.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Wyoming dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Wyoming |
| County | Carbon |
| River/Stream | Little Sage Creek |
| Coordinates | 41.60443, -107.30551 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 26 ft |
| Dam Length | 934 ft |
| Year Completed | 1969 (57 years old) |
Storage & Hydraulics
| NID Storage | 380 acre-ft |
| Max Storage | 380 acre-ft |
| Normal Storage | 0 acre-ft |
| Surface Area | 132 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Debris Control |
| Owner | DOI BLM |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/28/2016 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WY01479 |
| Federal ID | WY01479 |
| More Info | State Dam Safety Program |