Clark Lake Dam
Clark Lake Dam is an earth dam located in Lewis County, Missouri, built in 1975. It carries a Low hazard potential classification.
About Clark Lake Dam
The primary purpose of Clark Lake Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Ivan Clark (private). It impounds the Tr-wyaconda River near La Grange.
The dam stands 21 feet tall and stretches 280 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 65 acre-feet, and collects water from a drainage area of 275 square miles. Completed in 1975, 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 | Lewis |
| Nearest City | La Grange |
| River/Stream | Tr-wyaconda River |
| Coordinates | 40.16515, -91.56952 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 20 ft |
| Dam Length | 280 ft |
| Year Completed | 1975 (51 years old) |
Storage & Hydraulics
| NID Storage | 65 acre-ft |
| Max Storage | 65 acre-ft |
| Normal Storage | 35 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 275 sq mi |
| Max Discharge | 120 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | IVAN CLARK |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO11334 |
| Federal ID | MO11334 |
| More Info | State Dam Safety Program |