Ralph Holzwarth
Ralph Holzwarth is an earth dam located in Potter County, South Dakota, built in 1950. It carries a Low hazard potential classification.
About Ralph Holzwarth
The primary purpose of Ralph Holzwarth 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 Ralph Holzwarth (private). It impounds the Tr-missouri.
The dam stands 17 feet tall and stretches 380 feet across, and has a maximum storage capacity of 84 acre-feet. Completed in 1950, the structure is well-established, with more than 75 years of service.
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 | Potter |
| Nearest City | None |
| River/Stream | Tr-missouri |
| Coordinates | 45.02470, -100.21318 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 380 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 84 acre-ft |
| Max Storage | 84 acre-ft |
| Normal Storage | 60 acre-ft |
| Max Discharge | 360 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | RALPH HOLZWARTH |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00942 |
| Federal ID | SD00942 |
| More Info | State Dam Safety Program |