Non Potable Reservoir Dam 3
Non Potable Reservoir Dam 3 is an earth dam located in El Paso County, Colorado, built in 1961. It carries a High hazard potential classification.
About Non Potable Reservoir Dam 3
The primary purpose of Non Potable Reservoir Dam 3 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Usaf Academy (federal). It impounds the Tr-monument Cr - Offstream near Colorado Springs.
The dam stands 50 feet tall and stretches 890 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 70 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1961, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. An emergency action plan is in place for this dam. The most recent inspection on record was 05/21/2025.
At 50 feet, this dam is taller than 93% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Colorado dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Colorado |
| County | El Paso |
| Nearest City | Colorado Springs |
| River/Stream | Tr-monument Cr - Offstream |
| Coordinates | 39.02000, -104.87167 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 50 ft |
| Dam Height | 50 ft |
| Dam Length | 890 ft |
| Year Completed | 1961 (65 years old) |
Storage & Hydraulics
| NID Storage | 70 acre-ft |
| Max Storage | 70 acre-ft |
| Normal Storage | 65 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,450 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | USAF ACADEMY |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Not Available |
| Last Inspection | 05/21/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO02441 |
| Federal ID | CO02441 |
| More Info | State Dam Safety Program |