Henry Dam is an earth dam located in Macon County, Missouri, built in 1997. It carries a Low hazard potential classification.
Dam profile
NID height · 32 ft32 ft tall and 450 ft long, taller than 74% 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 Henry Dam
The primary purpose of Henry 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 Brain Henry (private). It impounds the Chariton River near College Mound.
The dam stands 32 feet tall and stretches 450 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 46 acre-feet, and collects water from a drainage area of 32 square miles. Completed in 1997, the structure is 29 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 | Macon |
| Nearest City | College Mound |
| River/Stream | Chariton River |
| Coordinates | 39.62064, -92.57784 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 30 ft |
| Dam Length | 450 ft |
| Year Completed | 1997 (29 years old) |
Storage & Hydraulics
| NID Storage | 46 acre-ft |
| Max Storage | 46 acre-ft |
| Normal Storage | 33 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 32 sq mi |
| Max Discharge | 13 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Brain Henry |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO50713 |
| Federal ID | MO50713 |
| More Info | State Dam Safety Program |