A & P No. 1
A & P No. 1 is an earth dam located in Converse County, Wyoming, built in 1954. It carries a Low hazard potential classification and has a fair condition assessment.
About A & P No. 1
The primary purpose of A & P No. 1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Pacificorp (allen Dugan) (private). It impounds the Dry Creek near Douglas.
The dam stands 27 feet tall and stretches 646 feet across, creates a reservoir covering 25 acres, and has a maximum storage capacity of 358 acre-feet. Completed in 1954, 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 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 05/11/2020.
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Location
| State | Wyoming |
| County | Converse |
| Nearest City | Douglas |
| River/Stream | Dry Creek |
| Coordinates | 42.83990, -105.80420 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 646 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 358 acre-ft |
| Max Storage | 358 acre-ft |
| Normal Storage | 214 acre-ft |
| Surface Area | 25 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | PACIFICORP (ALLEN DUGAN) |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 05/11/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY00266 |
| Federal ID | WY00266 |
| More Info | State Dam Safety Program |