Government No. 1 Stock
Government No. 1 Stock is an earth dam located in Johnson County, Wyoming, built in 1962. It carries a Low hazard potential classification and has a poor condition assessment.
About Government No. 1 Stock
The primary purpose of Government No. 1 Stock 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 Usdi Blm (federal). It impounds the South Prong No 1 Draw near Arvada.
The dam stands 30 feet tall and stretches 266 feet across, creates a reservoir covering 20 acres, and has a maximum storage capacity of 26 acre-feet. Completed in 1962, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 06/05/2023.
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Location
| State | Wyoming |
| County | Johnson |
| Nearest City | Arvada |
| River/Stream | South Prong No 1 Draw |
| Coordinates | 44.28806, -106.24583 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 266 ft |
| Year Completed | 1962 (64 years old) |
Storage & Hydraulics
| NID Storage | 26 acre-ft |
| Max Storage | 26 acre-ft |
| Normal Storage | 16 acre-ft |
| Surface Area | 20 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | USDI BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 06/05/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY00546 |
| Federal ID | WY00546 |
| More Info | State Dam Safety Program |