Non Potable Reservoir Dam 1
Non Potable Reservoir Dam 1 is an earth dam located in El Paso County, Colorado, built in 1961. It carries a Significant hazard potential classification.
About Non Potable Reservoir Dam 1
The primary purpose of Non Potable Reservoir Dam 1 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 Usaf Academy (federal). It impounds the Lehman Run near Colorado Springs.
The dam stands 50 feet tall and stretches 1,100 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 95 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1961, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 05/14/2024.
At 50 feet, this dam is taller than 93% of dams nationwide.
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Location
| State | Colorado |
| County | El Paso |
| Nearest City | Colorado Springs |
| River/Stream | Lehman Run |
| Coordinates | 39.00006, -104.83334 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 50 ft |
| Dam Height | 50 ft |
| Dam Length | 1,100 ft |
| Year Completed | 1961 (65 years old) |
Storage & Hydraulics
| NID Storage | 95 acre-ft |
| Max Storage | 95 acre-ft |
| Normal Storage | 80 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 5 sq mi |
| Max Discharge | 820 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | USAF ACADEMY |
| Owner Type | Federal |
| Hazard Classification | Significant |
| Condition Assessment | Not Available |
| Last Inspection | 05/14/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO02439 |
| Federal ID | CO02439 |
| More Info | State Dam Safety Program |