Smith Dam
Smith Dam is an earth dam located in Lyman County, South Dakota, built in 1960. It carries a Low hazard potential classification.
About Smith Dam
The primary purpose of Smith 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 Dick Smith (private). It impounds the Trib. Medicine Creek.
The dam stands 20 feet tall and stretches 1,500 feet across, creates a reservoir covering 21 acres, has a maximum storage capacity of 229 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1960, 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 | Lyman |
| Nearest City | None |
| River/Stream | Trib. Medicine Creek |
| Coordinates | 43.99999, -100.33329 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 1,500 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 229 acre-ft |
| Max Storage | 229 acre-ft |
| Normal Storage | 77 acre-ft |
| Surface Area | 21 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 1,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | DICK SMITH |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD02452 |
| Federal ID | SD02452 |
| More Info | State Dam Safety Program |