Heck Dam is an earth dam located in Holt County, Missouri, built in 1989. It carries a Low hazard potential classification.
Dam profile
NID height · 31 ft31 ft tall and 580 ft long, taller than 72% 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 Heck Dam
The primary purpose of Heck 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 Virgil Heck (private). It impounds the Tr-middle Branch Squaw Ck near Mound City.
The dam stands 31 feet tall and stretches 580 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 42 acre-feet, and collects water from a drainage area of 32 square miles. Completed in 1989, the structure is 37 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 | Holt |
| Nearest City | Mound City |
| River/Stream | Tr-middle Branch Squaw Ck |
| Coordinates | 40.24431, -95.19043 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 31 ft |
| Dam Length | 580 ft |
| Year Completed | 1989 (37 years old) |
Storage & Hydraulics
| NID Storage | 42 acre-ft |
| Max Storage | 42 acre-ft |
| Normal Storage | 15 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 32 sq mi |
| Max Discharge | 357 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Virgil Heck |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO50529 |
| Federal ID | MO50529 |
| More Info | State Dam Safety Program |