Gerald Martian is an earth dam located in Corson County, South Dakota, built in 1934. It carries a Low hazard potential classification.
Dam profile
NID height · 19 ft19 ft tall and 440 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 Gerald Martian
The primary purpose of Gerald Martian is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Gerald Martian (private). It impounds the Tr-grand near Little Eagle.
The dam stands 19 feet tall and stretches 440 feet across, and has a maximum storage capacity of 418 acre-feet. Completed in 1934, 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 | Corson |
| Nearest City | Little Eagle |
| River/Stream | Tr-grand |
| Coordinates | 45.52666, -100.88332 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 440 ft |
| Year Completed | 1934 (92 years old) |
Storage & Hydraulics
| NID Storage | 418 acre-ft |
| Max Storage | 418 acre-ft |
| Normal Storage | 238 acre-ft |
| Max Discharge | 1,248 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Gerald Martian |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00595 |
| Federal ID | SD00595 |
| More Info | State Dam Safety Program |