Bh Rc&d Grade Structure Bh Ca-305.3-la is an earth dam located in Lawrence County, South Dakota, built in 1976. It carries a Low hazard potential classification.
Dam profile
NID height · 50 ft50 ft tall and 650 ft long, taller than 92% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About Bh Rc&d Grade Structure Bh Ca-305.3-la
The primary purpose of Bh Rc&d Grade Structure Bh Ca-305.3-la is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Lawrence County (local government). It impounds the Tr-spring Creek.
The dam stands 50 feet tall and stretches 650 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 26 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1976, the structure is 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.
At 50 feet, this dam is taller than 92% of dams nationwide.
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Location
| State | South Dakota |
| County | Lawrence |
| River/Stream | Tr-spring Creek |
| Coordinates | 44.50707, -103.81226 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 50 ft |
| Dam Height | 50 ft |
| Dam Length | 650 ft |
| Year Completed | 1976 (50 years old) |
Storage & Hydraulics
| NID Storage | 26 acre-ft |
| Max Storage | 26 acre-ft |
| Normal Storage | 22 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 50 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Lawrence County |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD02166 |
| Federal ID | SD02166 |
| More Info | State Dam Safety Program |