Dunn Dam
Dunn Dam is an earth dam located in Scotland County, Missouri, built in 1990. It carries a Low hazard potential classification.
About Dunn Dam
The primary purpose of Dunn Dam is grade stabilization. Grade stabilization dams prevent erosion by reducing the slope and velocity of water flowing through a channel. They're commonly used to stop gullies from deepening and to protect downstream land and infrastructure. The dam is owned by Kieth Dunn (private). It impounds the Tr-middle Fabius River near Hannibal.
The dam stands 30 feet tall and stretches 300 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 22 acre-feet, and collects water from a drainage area of 19 square miles. Completed in 1990, the structure is 36 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 | Scotland |
| Nearest City | Hannibal |
| River/Stream | Tr-middle Fabius River |
| Coordinates | 40.36466, -92.16708 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 300 ft |
| Year Completed | 1990 (36 years old) |
Storage & Hydraulics
| NID Storage | 22 acre-ft |
| Max Storage | 22 acre-ft |
| Normal Storage | 12 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 19 sq mi |
| Max Discharge | 25 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | KIETH DUNN |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO50538 |
| Federal ID | MO50538 |
| More Info | State Dam Safety Program |