Diamond Ring Ranch #6 is an earth dam located in Haakon County, South Dakota, built in 1969. It carries a Low hazard potential classification.
Dam profile
NID height · 25 ft25 ft tall and 750 ft long, taller than 50% 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 Diamond Ring Ranch #6
The primary purpose of Diamond Ring Ranch #6 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 Midland Farms LLC (private). It impounds the Big Prairie Dog Creek.
The dam stands 25 feet tall and stretches 750 feet across, creates a reservoir covering 25 acres, and has a maximum storage capacity of 400 acre-feet. Completed in 1969, 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. The most recent inspection on record was 11/03/1997. That was over 28 years ago.
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Location
| State | South Dakota |
| County | Haakon |
| Nearest City | None |
| River/Stream | Big Prairie Dog Creek |
| Coordinates | 44.29147, -101.17915 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 750 ft |
| Year Completed | 1969 (57 years old) |
Storage & Hydraulics
| NID Storage | 400 acre-ft |
| Max Storage | 400 acre-ft |
| Normal Storage | 200 acre-ft |
| Surface Area | 25 acres |
| Max Discharge | 2,100 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Midland Farms LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 11/03/1997 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00872 |
| Federal ID | SD00872 |
| More Info | State Dam Safety Program |