Pettegrew Pond No.1
Pettegrew Pond No.1 is an earth dam located in Fall River County, South Dakota, built in 1968. It carries a Low hazard potential classification.
About Pettegrew Pond No.1
The primary purpose of Pettegrew Pond No.1 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 Mykris, Michael, & Carolyn Living Trust (private). It impounds the Tr-horsehead Creek.
The dam stands 17 feet tall and stretches 850 feet across, and has a maximum storage capacity of 114 acre-feet. Completed in 1968, 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 | Fall River |
| Nearest City | None |
| River/Stream | Tr-horsehead Creek |
| Coordinates | 43.05426, -103.24487 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 850 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 114 acre-ft |
| Max Storage | 114 acre-ft |
| Normal Storage | 88 acre-ft |
| Max Discharge | 2,200 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Mykris, Michael, & Carolyn Living Trust |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD01037 |
| Federal ID | SD01037 |
| More Info | State Dam Safety Program |