R. Clark No.1
R. Clark No.1 is an earth dam located in Dewey County, South Dakota, built in 1946. It carries a Low hazard potential classification.
About R. Clark No.1
The primary purpose of R. Clark No.1 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 R. Clark (private). It impounds the Tr Grand.
The dam stands 19 feet tall and stretches 630 feet across, and has a maximum storage capacity of 190 acre-feet. Completed in 1946, 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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | South Dakota |
| County | Dewey |
| Nearest City | None |
| River/Stream | Tr Grand |
| Coordinates | 45.42166, -101.44166 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 630 ft |
| Year Completed | 1946 (80 years old) |
Storage & Hydraulics
| NID Storage | 190 acre-ft |
| Max Storage | 190 acre-ft |
| Normal Storage | 190 acre-ft |
| Max Discharge | 3,084 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | R. CLARK |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00355 |
| Federal ID | SD00355 |
| More Info | State Dam Safety Program |