Three T No 1 Dam
Three T No 1 Dam is a gravity dam located in Natrona County, Wyoming, built in 1960. It carries a Low hazard potential classification and has a poor condition assessment.
About Three T No 1 Dam
Three T No 1 Dam is a dam in Natrona, Wyoming. The dam is owned by Doi Blm (federal). It impounds the Unamed Draw.
The dam stands 23 feet tall and stretches 727 feet across, creates a reservoir covering 24 acres, has a maximum storage capacity of 204 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1960, 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 07/22/2017.
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Location
| State | Wyoming |
| County | Natrona |
| River/Stream | Unamed Draw |
| Coordinates | 43.25400, -106.67474 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 23 ft |
| Dam Length | 727 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 204 acre-ft |
| Max Storage | 204 acre-ft |
| Normal Storage | 122 acre-ft |
| Surface Area | 24 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 756 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | DOI BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 07/22/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY02286 |
| Federal ID | WY02286 |
| More Info | State Dam Safety Program |