Jenson Dam
Jenson Dam is an earth dam located in Perkins County, South Dakota, built in 1934. It carries a Low hazard potential classification.
About Jenson Dam
The primary purpose of Jenson Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by M. Jenson (private). It impounds the Tr-grand.
The dam stands 29 feet tall and stretches 600 feet across, and has a maximum storage capacity of 500 acre-feet. Completed in 1934, the structure is well-established, with more than 75 years of service.
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 | Perkins |
| Nearest City | None |
| River/Stream | Tr-grand |
| Coordinates | 45.61999, -102.46999 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 600 ft |
| Year Completed | 1934 (92 years old) |
Storage & Hydraulics
| NID Storage | 500 acre-ft |
| Max Storage | 500 acre-ft |
| Normal Storage | 360 acre-ft |
| Max Discharge | 670 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | M. JENSON |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00918 |
| Federal ID | SD00918 |
| More Info | State Dam Safety Program |