Blackman_*
Blackman_* is an earth dam located in Mesa County, Colorado, built in 1911. It carries a Significant hazard potential classification.
About Blackman_*
The primary purpose of Blackman_* is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Usda Fs (federal). It impounds the Cottonwood Creek.
The dam stands 27 feet tall and stretches 170 feet across, has a maximum storage capacity of 90 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1911, the structure is over a century 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.
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Location
| State | Colorado |
| County | Mesa |
| River/Stream | Cottonwood Creek |
| Coordinates | 39.09310, -107.97690 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 22 ft |
| Dam Length | 170 ft |
| Year Completed | 1911 (115 years old) |
Storage & Hydraulics
| NID Storage | 90 acre-ft |
| Max Storage | 90 acre-ft |
| Normal Storage | 78 acre-ft |
| Drainage Area | 1 sq mi |
| Max Discharge | 15 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | USDA FS |
| Owner Type | Federal |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO01676 |
| Federal ID | CO01676 |
| More Info | State Dam Safety Program |