Lake Gemay Dam is an earth dam located in Texas County, Missouri, built in 1964. It carries a Low hazard potential classification.
Dam profile
NID height · 27 ft27 ft tall and 470 ft long, taller than 59% of U.S. dams with a recorded height. 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 Lake Gemay Dam
The primary purpose of Lake Gemay Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Joseph Mueller (private). It impounds the Tr-north Prong Jack Fork Riv near Alley Spring.
The dam stands 27 feet tall and stretches 470 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 53 acre-feet, and collects water from a drainage area of 19 square miles. Completed in 1964, 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 | Missouri |
| County | Texas |
| Nearest City | Alley Spring |
| River/Stream | Tr-north Prong Jack Fork Riv |
| Coordinates | 37.14096, -91.87382 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 470 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 53 acre-ft |
| Max Storage | 53 acre-ft |
| Normal Storage | 43 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 19 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Joseph Mueller |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO30106 |
| Federal ID | MO30106 |
| More Info | State Dam Safety Program |