Keefe Dam is an earth dam located in Tripp County, South Dakota, built in 2003. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 774 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 Keefe Dam
The primary purpose of Keefe 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 Edward Keefe (private). It impounds the Tr Thunder Creek.
The dam stands 20 feet tall and stretches 774 feet across, creates a reservoir covering 21 acres, has a maximum storage capacity of 310 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 2003, the structure is relatively new.
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 05/06/2004. That was over 22 years ago.
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Location
| State | South Dakota |
| County | Tripp |
| River/Stream | Tr Thunder Creek |
| Coordinates | 43.30420, -99.76003 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 774 ft |
| Year Completed | 2003 (23 years old) |
Storage & Hydraulics
| NID Storage | 310 acre-ft |
| Max Storage | 310 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 21 acres |
| Drainage Area | 6 sq mi |
| Max Discharge | 2,128 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Edward Keefe |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 05/06/2004 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD02523 |
| Federal ID | SD02523 |
| More Info | State Dam Safety Program |