M.o. No. 1
M.o. No. 1 is an earth dam located in Converse County, Wyoming, built in 1985. It carries a Low hazard potential classification and has a fair condition assessment.
About M.o. No. 1
The primary purpose of M.o. No. 1 is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Green Valley Attn: Monte L. Mcnamee (private). It impounds the Madison Dr, Trib Cottonwood Cr near 1 25.
The dam stands 27 feet tall and stretches 220 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 40 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1985, the structure is 41 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 05/10/2023.
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Location
| State | Wyoming |
| County | Converse |
| Nearest City | 1 25 |
| River/Stream | Madison Dr, Trib Cottonwood Cr |
| Coordinates | 42.78778, -105.65417 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 220 ft |
| Year Completed | 1985 (41 years old) |
Storage & Hydraulics
| NID Storage | 40 acre-ft |
| Max Storage | 40 acre-ft |
| Normal Storage | 25 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,133 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | GREEN VALLEY ATTN: MONTE L. MCNAMEE |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 05/10/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01985 |
| Federal ID | WY01985 |
| More Info | State Dam Safety Program |