Grindstone-lost-muddy Watershed Dam C- 6 is an earth dam located in DeKalb County, Missouri, built in 1988. It carries a Low hazard potential classification.
Dam profile
NID height · 34 ft34 ft tall and 700 ft long, taller than 78% 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 Grindstone-lost-muddy Watershed Dam C- 6
The primary purpose of Grindstone-lost-muddy Watershed Dam C- 6 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Glm Watershed Subdist. (local government). It impounds the Tr-lost Creek near Pattonsburg.
The dam stands 34 feet tall and stretches 700 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 495 acre-feet, and collects water from a drainage area of 57 square miles. Completed in 1988, the structure is 38 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.
At 34 feet, this dam is taller than 78% of dams nationwide.
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Location
| State | Missouri |
| County | DeKalb |
| Nearest City | Pattonsburg |
| River/Stream | Tr-lost Creek |
| Coordinates | 39.94225, -94.40002 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Dam Length | 700 ft |
| Year Completed | 1988 (38 years old) |
Storage & Hydraulics
| NID Storage | 495 acre-ft |
| Max Storage | 495 acre-ft |
| Normal Storage | 86 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 57 sq mi |
| Max Discharge | 634 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Glm Watershed Subdist. |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO50082 |
| Federal ID | MO50082 |
| More Info | State Dam Safety Program |