Clarence Cannon Mem Watershed Dam 12 is an earth dam located in Lincoln County, Missouri, built in 1977. It carries a Low hazard potential classification.
Dam profile
NID height · 26 ft26 ft tall and 530 ft long, taller than 55% 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 Clarence Cannon Mem Watershed Dam 12
The primary purpose of Clarence Cannon Mem Watershed Dam 12 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 Cannon Mem Wrsd Subdistr (local government). It impounds the Old Kings Lake Creek near Elsberry.
The dam stands 26 feet tall and stretches 530 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 295 acre-feet, and collects water from a drainage area of 147 square miles. Completed in 1977, the structure is 49 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 | Lincoln |
| Nearest City | Elsberry |
| River/Stream | Old Kings Lake Creek |
| Coordinates | 39.18916, -90.79765 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 26 ft |
| Dam Height | 25 ft |
| Dam Length | 530 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 295 acre-ft |
| Max Storage | 295 acre-ft |
| Normal Storage | 52 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 147 sq mi |
| Max Discharge | 2,975 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Cannon Mem Wrsd Subdistr |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO12109 |
| Federal ID | MO12109 |
| More Info | State Dam Safety Program |