Carnahan Lake Dam
Carnahan Lake Dam is an earth dam located in Carter County, Missouri, built in 1974. It carries a Low hazard potential classification.
About Carnahan Lake Dam
The primary purpose of Carnahan Lake Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Robert&ioma Carnahan (private). It impounds the Devils Run-big Brushy Creek near Williamsville.
The dam stands 21 feet tall, creates a reservoir covering 26 acres, has a maximum storage capacity of 292 acre-feet, and collects water from a drainage area of 115 square miles. Completed in 1974, 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 | Carter |
| Nearest City | Williamsville |
| River/Stream | Devils Run-big Brushy Creek |
| Coordinates | 36.94782, -90.81722 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 292 acre-ft |
| Max Storage | 292 acre-ft |
| Normal Storage | 185 acre-ft |
| Surface Area | 26 acres |
| Drainage Area | 115 sq mi |
Ownership & Safety
| Purpose | Irrigation |
| Owner | ROBERT&IOMA CARNAHAN |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO30104 |
| Federal ID | MO30104 |
| More Info | State Dam Safety Program |