Old Town Dam
Old Town Dam is an earth dam located in Pennington County, South Dakota, built in 1941. It carries a Low hazard potential classification.
About Old Town Dam
The primary purpose of Old Town Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of Wall (local government). It impounds the Tr-cheyenne.
The dam stands 14 feet tall and stretches 1,100 feet across, and has a maximum storage capacity of 90 acre-feet. Completed in 1941, 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 | Pennington |
| Nearest City | None |
| River/Stream | Tr-cheyenne |
| Coordinates | 43.98618, -102.25742 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 1,100 ft |
| Year Completed | 1941 (85 years old) |
Storage & Hydraulics
| NID Storage | 90 acre-ft |
| Max Storage | 90 acre-ft |
| Normal Storage | 65 acre-ft |
| Max Discharge | 1,450 cfs |
Ownership & Safety
| Purpose | Water Supply |
| Owner | CITY OF WALL |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD02167 |
| Federal ID | SD02167 |
| More Info | State Dam Safety Program |