Oil Well Dam No.1 is an earth dam located in Fall River County, South Dakota, built in 1945. It carries a Low hazard potential classification.
Dam profile
NID height · 12 ft12 ft tall and 1,300 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Oil Well Dam No.1
The primary purpose of Oil Well Dam 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 Wesley Tlustos Jr (private). It impounds the Medicine Creek-tr.
The dam stands 12 feet tall and stretches 1,300 feet across, and has a maximum storage capacity of 119 acre-feet. Completed in 1945, 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 | Fall River |
| Nearest City | None |
| River/Stream | Medicine Creek-tr |
| Coordinates | 43.02649, -103.45107 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 1,300 ft |
| Year Completed | 1945 (81 years old) |
Storage & Hydraulics
| NID Storage | 119 acre-ft |
| Max Storage | 119 acre-ft |
| Normal Storage | 81 acre-ft |
| Max Discharge | 2,600 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Wesley Tlustos Jr |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00647 |
| Federal ID | SD00647 |
| More Info | State Dam Safety Program |