Lamm Dam
Lamm Dam is an earth dam located in Haakon County, South Dakota, built in 1954. It carries a Low hazard potential classification.
About Lamm Dam
The primary purpose of Lamm Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Rudy & Susan M Roth (private). It impounds the Grindstone Creek.
The dam stands 19 feet tall and stretches 900 feet across, and has a maximum storage capacity of 372 acre-feet. Completed in 1954, 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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | South Dakota |
| County | Haakon |
| Nearest City | None |
| River/Stream | Grindstone Creek |
| Coordinates | 44.15698, -101.70847 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 900 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 372 acre-ft |
| Max Storage | 372 acre-ft |
| Normal Storage | 180 acre-ft |
| Max Discharge | 1,260 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | RUDY & SUSAN M ROTH |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00821 |
| Federal ID | SD00821 |
| More Info | State Dam Safety Program |