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 23 feet tall and stretches 520 feet across, and has a maximum storage capacity of 115 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, -101.36166 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 520 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 115 acre-ft |
| Max Storage | 115 acre-ft |
| Normal Storage | 67 acre-ft |
| Max Discharge | 1,890 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | WALTER DENNIS |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD01341 |
| Federal ID | SD01341 |
| More Info | State Dam Safety Program |