Herron Dam is an earth dam located in Ziebach County, South Dakota, built in 1939. It carries a Low hazard potential classification.
Dam profile
NID height · 21 ft21 ft tall and 444 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Herron Dam
The primary purpose of Herron Dam 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 Eva Fields Es (private). It impounds the East Branch of Ash Creek.
The dam stands 21 feet tall and stretches 444 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 104 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1939, 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. The most recent inspection on record was 06/01/1986. That was over 40 years ago.
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Location
| State | South Dakota |
| County | Ziebach |
| Nearest City | None |
| River/Stream | East Branch of Ash Creek |
| Coordinates | 44.86499, -101.63499 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 444 ft |
| Year Completed | 1939 (87 years old) |
Storage & Hydraulics
| NID Storage | 104 acre-ft |
| Max Storage | 104 acre-ft |
| Normal Storage | 53 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 385 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Eva Fields Es |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 06/01/1986 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00521 |
| Federal ID | SD00521 |
| More Info | State Dam Safety Program |