East Morristown Lake
East Morristown Lake is an earth dam located in Corson County, South Dakota, built in 1910. It carries a Low hazard potential classification.
About East Morristown Lake
The primary purpose of East Morristown Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Railroad (private). It impounds the Tr-hay Creek.
The dam stands 34 feet tall and stretches 900 feet across, and has a maximum storage capacity of 1,360 acre-feet. Completed in 1910, the structure is over a century 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.
At 34 feet, this dam is taller than 80% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | South Dakota |
| County | Corson |
| Nearest City | None |
| River/Stream | Tr-hay Creek |
| Coordinates | 45.93218, -101.64341 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Dam Length | 900 ft |
| Year Completed | 1910 (116 years old) |
Storage & Hydraulics
| NID Storage | 1,360 acre-ft |
| Max Storage | 1,360 acre-ft |
| Normal Storage | 259 acre-ft |
| Max Discharge | 1,200 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | RAILROAD |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00739 |
| Federal ID | SD00739 |
| More Info | State Dam Safety Program |