R. Hanson Dam
R. Hanson Dam is an earth dam located in Tripp County, South Dakota, built in 1975. It carries a Low hazard potential classification.
About R. Hanson Dam
The primary purpose of R. Hanson Dam 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 Robert & Kimberly Hanson (private). It impounds the Keya Paha River-tr.
The dam stands 15 feet tall and stretches 364 feet across, and has a maximum storage capacity of 190 acre-feet. Completed in 1975, 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 | Tripp |
| Nearest City | None |
| River/Stream | Keya Paha River-tr |
| Coordinates | 43.13751, -100.12334 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 364 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 190 acre-ft |
| Max Storage | 190 acre-ft |
| Normal Storage | 110 acre-ft |
| Max Discharge | 617 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Robert & Kimberly Hanson |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD02192 |
| Federal ID | SD02192 |
| More Info | State Dam Safety Program |