Sherwin 9-249-6
Sherwin 9-249-6 is an earth dam located in Weston County, Wyoming, built in 1954. It carries a Low hazard potential classification.
About Sherwin 9-249-6
The primary purpose of Sherwin 9-249-6 is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Usda Fs (federal). It impounds the Cheyenne River near Edgemont, Sd.
The dam stands 31 feet tall and stretches 600 feet across, creates a reservoir covering 15 acres, has a maximum storage capacity of 97 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1954, 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. The most recent inspection on record was 05/12/2009. That was over 16 years ago.
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Location
| State | Wyoming |
| County | Weston |
| Nearest City | Edgemont, Sd |
| River/Stream | Cheyenne River |
| Coordinates | 43.54707, -104.87175 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 26 ft |
| Dam Length | 600 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 97 acre-ft |
| Max Storage | 97 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 1,460 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | USDA FS |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 05/12/2009 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY02599 |
| Federal ID | WY02599 |
| More Info | State Dam Safety Program |