Pratt Park
Pratt Park is an earth dam located in Natrona County, Wyoming, built in 1980. It carries a Low hazard potential classification and has a fair condition assessment.
About Pratt Park
The primary purpose of Pratt Park 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 City Of Casper, Attn: V. H. Mcdonald (local government). It impounds the Sage Creek near Casper.
The dam stands 17 feet tall and stretches 4,000 feet across, creates a reservoir covering 11 acres, and has a storage capacity of 100 acre-feet. Completed in 1980, the structure is 46 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 04/06/2021.
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Location
| State | Wyoming |
| County | Natrona |
| Nearest City | Casper |
| River/Stream | Sage Creek |
| Coordinates | 42.83490, -106.28770 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 4,000 ft |
| Year Completed | 1980 (46 years old) |
Storage & Hydraulics
| NID Storage | 100 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 11 acres |
| Max Discharge | 2,010 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | CITY OF CASPER, ATTN: V. H. MCDONALD |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 04/06/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01814 |
| Federal ID | WY01814 |
| More Info | State Dam Safety Program |