Green Valley
Green Valley is an earth dam located in Jackson County, South Dakota, built in 1940. It carries a Low hazard potential classification.
About Green Valley
The primary purpose of Green Valley 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 Hockenberry (private). It impounds the Tr-white River.
The dam stands 18 feet tall and stretches 500 feet across, and has a maximum storage capacity of 100 acre-feet. Completed in 1940, the structure is well-established, with more than 75 years of service.
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.
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Location
| State | South Dakota |
| County | Jackson |
| Nearest City | None |
| River/Stream | Tr-white River |
| Coordinates | 43.44833, -101.96332 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 500 ft |
| Year Completed | 1940 (86 years old) |
Storage & Hydraulics
| NID Storage | 100 acre-ft |
| Max Storage | 100 acre-ft |
| Normal Storage | 30 acre-ft |
| Max Discharge | 5,000 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | HOCKENBERRY |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD02134 |
| Federal ID | SD02134 |
| More Info | State Dam Safety Program |