Murphy Farms Dam is an earth dam located in Codington County, South Dakota, built in 1998. It carries a Low hazard potential classification.
Dam profile
NID height · 16 ft16 ft tall and 247 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 Murphy Farms Dam
The primary purpose of Murphy Farms Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Murphy Farm Partnership (private). It impounds the Tr-big Sioux River.
The dam stands 16 feet tall and stretches 247 feet across, creates a reservoir covering 16 acres, and has a maximum storage capacity of 135 acre-feet. Completed in 1998, the structure is 28 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 | Codington |
| River/Stream | Tr-big Sioux River |
| Coordinates | 44.92372, -97.45569 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 247 ft |
| Year Completed | 1998 (28 years old) |
Storage & Hydraulics
| NID Storage | 135 acre-ft |
| Max Storage | 135 acre-ft |
| Normal Storage | 80 acre-ft |
| Surface Area | 16 acres |
| Max Discharge | 270 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Murphy Farm Partnership |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD02548 |
| Federal ID | SD02548 |
| More Info | State Dam Safety Program |