Mccoy-waits Lake Dam
Mccoy-waits Lake Dam is an earth dam located in Atchison County, Missouri, built in 1973. It carries a Low hazard potential classification.
About Mccoy-waits Lake Dam
The primary purpose of Mccoy-waits Lake Dam is debris control. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion. The dam is owned by Cecil Mccoy (private). It impounds the Tr-mill Creek near Corning.
The dam stands 30 feet tall, creates a reservoir covering 5 acres, has a maximum storage capacity of 80 acre-feet, and collects water from a drainage area of 230 square miles. Completed in 1973, 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 | Atchison |
| Nearest City | Corning |
| River/Stream | Tr-mill Creek |
| Coordinates | 40.34462, -95.46853 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 80 acre-ft |
| Max Storage | 80 acre-ft |
| Normal Storage | 38 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 230 sq mi |
Ownership & Safety
| Purpose | Debris Control |
| Owner | CECIL MCCOY |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO11253 |
| Federal ID | MO11253 |
| More Info | State Dam Safety Program |