H.c. Calhoun
H.c. Calhoun is an earth dam located in Hughes County, South Dakota, built in 1954. It carries a Low hazard potential classification.
About H.c. Calhoun
The primary purpose of H.c. Calhoun 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 Dennis O'dea (private). It impounds the Missouri River Trib Offstream.
The dam stands 13 feet tall and stretches 450 feet across, and has a maximum storage capacity of 59 acre-feet. 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.
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Location
| State | South Dakota |
| County | Hughes |
| Nearest City | None |
| River/Stream | Missouri River Trib Offstream |
| Coordinates | 44.27833, -99.89666 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 450 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 59 acre-ft |
| Max Storage | 59 acre-ft |
| Normal Storage | 16 acre-ft |
| Max Discharge | 900 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | DENNIS O'DEA |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD01522 |
| Federal ID | SD01522 |
| More Info | State Dam Safety Program |