Smith Dam is an earth dam located in Lyman County, South Dakota, built in 2006. It carries a Low hazard potential classification.
Dam profile
NID height · 43 ft43 ft tall and 485 ft long, taller than 89% of U.S. dams with a recorded height. 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 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 R. Lee Smith (private). It impounds the Tr White River.
The dam stands 43 feet tall and stretches 485 feet across, creates a reservoir covering 12 acres, and has a maximum storage capacity of 138 acre-feet. Completed in 2006, 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.
At 43 feet, this dam is taller than 89% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | South Dakota |
| County | Lyman |
| River/Stream | Tr White River |
| Coordinates | 43.72459, -100.23567 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 43 ft |
| Dam Height | 43 ft |
| Dam Length | 485 ft |
| Year Completed | 2006 (20 years old) |
Storage & Hydraulics
| NID Storage | 138 acre-ft |
| Max Storage | 138 acre-ft |
| Normal Storage | 86 acre-ft |
| Surface Area | 12 acres |
| Max Discharge | 1,620 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | R. Lee Smith |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD02568 |
| Federal ID | SD02568 |
| More Info | State Dam Safety Program |