Hartman Retention
Hartman Retention is an earth dam located in Mesa County, Colorado, built in 1957. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Hartman Retention
The primary purpose of Hartman Retention 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 Walker Field Airport Authority (corinne Nystrom) (local government). It impounds the Indian Wash-tr near Grand Junction.
The dam stands 24 feet tall and stretches 250 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 55 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1957, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 04/02/2002. That was over 24 years ago.
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Location
| State | Colorado |
| County | Mesa |
| Nearest City | Grand Junction |
| River/Stream | Indian Wash-tr |
| Coordinates | 39.11862, -108.50668 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 19 ft |
| Dam Length | 250 ft |
| Year Completed | 1957 (69 years old) |
Storage & Hydraulics
| NID Storage | 55 acre-ft |
| Max Storage | 55 acre-ft |
| Normal Storage | 14 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 2,044 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | WALKER FIELD AIRPORT AUTHORITY (CORINNE NYSTROM) |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/02/2002 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO00957 |
| Federal ID | CO00957 |
| More Info | State Dam Safety Program |