Smith Ranch Dam
Smith Ranch Dam is an earth dam located in Haakon County, South Dakota, built in 1953. It carries a Significant hazard potential classification.
About Smith Ranch Dam
The primary purpose of Smith Ranch 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 R & G Smith Ranch Llc (private). It impounds the South Fork Bad River-tr near Philip.
The dam stands 19 feet tall and stretches 1,340 feet across, and has a maximum storage capacity of 106 acre-feet. Completed in 1953, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life.
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Location
| State | South Dakota |
| County | Haakon |
| Nearest City | Philip |
| River/Stream | South Fork Bad River-tr |
| Coordinates | 44.03248, -101.82001 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 1,340 ft |
| Year Completed | 1953 (73 years old) |
Storage & Hydraulics
| NID Storage | 106 acre-ft |
| Max Storage | 106 acre-ft |
| Normal Storage | 38 acre-ft |
| Max Discharge | 5,250 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | R & G SMITH RANCH LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00808 |
| Federal ID | SD00808 |
| More Info | State Dam Safety Program |