Grand Mesa #6
Grand Mesa #6 is an earth dam located in Mesa County, Colorado, built in 1966. It carries a Low hazard potential classification.
About Grand Mesa #6
The primary purpose of Grand Mesa #6 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Grand Mesa Reservoir Co. (private). It impounds the Kannah Creek-tr near Grand Junction.
The dam stands 21 feet tall and stretches 450 feet across, creates a reservoir covering 51 acres, and has a maximum storage capacity of 447 acre-feet. Completed in 1966, 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. An emergency action plan is in place for this dam. The most recent inspection on record was 07/14/2020.
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Location
| State | Colorado |
| County | Mesa |
| Nearest City | Grand Junction |
| River/Stream | Kannah Creek-tr |
| Coordinates | 39.03167, -108.07723 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 16 ft |
| Dam Length | 450 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 447 acre-ft |
| Max Storage | 447 acre-ft |
| Normal Storage | 213 acre-ft |
| Surface Area | 51 acres |
| Max Discharge | 1,117 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | GRAND MESA RESERVOIR CO. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 07/14/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO00083 |
| Federal ID | CO00083 |
| More Info | State Dam Safety Program |