Detention Case Bier No. 1
Detention Case Bier 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 Case Bier No. 1
The primary purpose of Detention Case Bier 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 Case Bier Draw near Ft Laramie.
The dam stands 59 feet tall and stretches 2,550 feet across, creates a reservoir covering 92 acres, has a maximum storage capacity of 2,271 acre-feet, and collects water from a drainage area of 14 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 59 feet, this dam is taller than 95% of all dams in the United States.
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Location
| State | Wyoming |
| County | Goshen |
| Nearest City | Ft Laramie |
| River/Stream | Case Bier Draw |
| Coordinates | 42.24900, -104.54110 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 59 ft |
| Dam Height | 54 ft |
| Dam Length | 2,550 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 2,271 acre-ft |
| Max Storage | 2,271 acre-ft |
| Normal Storage | 1,459 acre-ft |
| Surface Area | 92 acres |
| Drainage Area | 14 sq mi |
| Max Discharge | 17,392 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 | WY00203 |
| Federal ID | WY00203 |
| More Info | State Dam Safety Program |