Peno Grazing Association
Peno Grazing Association is an earth dam located in Pennington County, South Dakota, built in 1952. It carries a Low hazard potential classification.
About Peno Grazing Association
The primary purpose of Peno Grazing Association is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Peno Grazing Association (private). It impounds the Tr-cheyenne.
The dam stands 25 feet tall and stretches 700 feet across, and has a maximum storage capacity of 210 acre-feet. Completed in 1952, 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 | Pennington |
| Nearest City | None |
| River/Stream | Tr-cheyenne |
| Coordinates | 44.31499, -102.13666 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 700 ft |
| Year Completed | 1952 (74 years old) |
Storage & Hydraulics
| NID Storage | 210 acre-ft |
| Max Storage | 210 acre-ft |
| Normal Storage | 146 acre-ft |
| Max Discharge | 3,000 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | PENO GRAZING ASSOCIATION |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD01944 |
| Federal ID | SD01944 |
| More Info | State Dam Safety Program |