Long Branch Dam
Long Branch Dam is an earth dam located in Haakon County, South Dakota, built in 1959. It carries a Low hazard potential classification.
About Long Branch Dam
The primary purpose of Long Branch 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 Carl F Mathews & Tom Maher Tic (private). It impounds the Long Branch Creek.
The dam stands 27 feet tall and stretches 550 feet across, and has a maximum storage capacity of 50 acre-feet. Completed in 1959, 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 | Haakon |
| Nearest City | None |
| River/Stream | Long Branch Creek |
| Coordinates | 44.40918, -101.46166 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 550 ft |
| Year Completed | 1959 (67 years old) |
Storage & Hydraulics
| NID Storage | 50 acre-ft |
| Max Storage | 50 acre-ft |
| Normal Storage | 33 acre-ft |
| Max Discharge | 546 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | CARL F MATHEWS & TOM MAHER TIC |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00879 |
| Federal ID | SD00879 |
| More Info | State Dam Safety Program |