Detention Pine Ridge No. 1
Detention Pine Ridge No. 1 is an earth dam located in Goshen County, Wyoming, built in 1958. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Detention Pine Ridge No. 1
The primary purpose of Detention Pine Ridge No. 1 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Town Of Ft. Laramie (local government). It impounds the Eaton Dr near Ft Laramie.
The dam stands 56 feet tall and stretches 2,700 feet across, creates a reservoir covering 145 acres, has a maximum storage capacity of 3,444 acre-feet, and collects water from a drainage area of 20 square miles. Completed in 1958, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 05/01/2020.
At 56 feet, this dam is taller than 94% of dams nationwide.
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Location
| State | Wyoming |
| County | Goshen |
| Nearest City | Ft Laramie |
| River/Stream | Eaton Dr |
| Coordinates | 42.23100, -104.51360 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 56 ft |
| Dam Height | 53 ft |
| Dam Length | 2,700 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 3,444 acre-ft |
| Max Storage | 3,444 acre-ft |
| Normal Storage | 2,208 acre-ft |
| Surface Area | 145 acres |
| Drainage Area | 20 sq mi |
| Max Discharge | 13,600 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | TOWN OF FT. LARAMIE |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/01/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY00142 |
| Federal ID | WY00142 |
| More Info | State Dam Safety Program |