Louis Bonhorst Number 2 is an earth dam located in Stanley County, South Dakota, built in 1958. It carries a Low hazard potential classification.
Dam profile
NID height · 35 ft35 ft tall and 350 ft long, taller than 80% 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 Louis Bonhorst Number 2
The primary purpose of Louis Bonhorst Number 2 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 Louis Bonhorst (private). It impounds the Tributary Tobad River.
The dam stands 35 feet tall and stretches 350 feet across, and has a maximum storage capacity of 36 acre-feet. Completed in 1958, 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.
At 35 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | South Dakota |
| County | Stanley |
| Nearest City | None |
| River/Stream | Tributary Tobad River |
| Coordinates | 44.18499, -100.85166 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 350 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 36 acre-ft |
| Max Storage | 36 acre-ft |
| Normal Storage | 21 acre-ft |
| Max Discharge | 735 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Louis Bonhorst |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD01546 |
| Federal ID | SD01546 |
| More Info | State Dam Safety Program |