Davis Ranch Inc. No.1 is an earth dam located in Butte County, South Dakota, built in 1914. It carries a Low hazard potential classification.
Dam profile
NID height · 21 ft21 ft tall and 1,060 ft long. 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 Davis Ranch Inc. No.1
The primary purpose of Davis Ranch Inc. No.1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Davis Ranch Inc. (private). It impounds the Softwater Creek.
The dam stands 21 feet tall and stretches 1,060 feet across, and has a maximum storage capacity of 489 acre-feet. Completed in 1914, the structure is over a century 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.
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Location
| State | South Dakota |
| County | Butte |
| Nearest City | None |
| River/Stream | Softwater Creek |
| Coordinates | 44.93913, -103.86233 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 1,060 ft |
| Year Completed | 1914 (112 years old) |
Storage & Hydraulics
| NID Storage | 489 acre-ft |
| Max Storage | 489 acre-ft |
| Normal Storage | 220 acre-ft |
| Max Discharge | 3,000 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Davis Ranch Inc. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00678 |
| Federal ID | SD00678 |
| More Info | State Dam Safety Program |