Walter Dennis Irrigation
Walter Dennis Irrigation is an earth dam located in Jackson County, South Dakota, built in 1960. It carries a Low hazard potential classification.
About Walter Dennis Irrigation
The primary purpose of Walter Dennis Irrigation is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Walter Dennis (private). It impounds the Tr-white River.
The dam stands 21 feet tall and stretches 100 feet across, and has a maximum storage capacity of 830 acre-feet. Completed in 1960, 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.
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Location
| State | South Dakota |
| County | Jackson |
| Nearest City | None |
| River/Stream | Tr-white River |
| Coordinates | 43.80166, -101.35332 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 100 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 830 acre-ft |
| Max Storage | 830 acre-ft |
| Normal Storage | 67 acre-ft |
| Max Discharge | 810 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | WALTER DENNIS |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD01055 |
| Federal ID | SD01055 |
| More Info | State Dam Safety Program |