Grindstone-lost-muddy Watershed Dam A-10b is an earth dam located in DeKalb County, Missouri, built in 1987. It carries a Low hazard potential classification.
Dam profile
NID height · 35 ft35 ft tall and 750 ft long, taller than 80% 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 A-10b
The primary purpose of Grindstone-lost-muddy Watershed Dam A-10b 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 G-l-m Watershed Subdist (local government). It impounds the Owens Creek near Pattonsburg.
The dam stands 35 feet tall and stretches 750 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 640 acre-feet, and collects water from a drainage area of 102 square miles. Completed in 1987, the structure is 39 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 35 feet, this dam is taller than 80% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Missouri |
| County | DeKalb |
| Nearest City | Pattonsburg |
| River/Stream | Owens Creek |
| Coordinates | 39.82611, -94.28787 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 750 ft |
| Year Completed | 1987 (39 years old) |
Storage & Hydraulics
| NID Storage | 640 acre-ft |
| Max Storage | 640 acre-ft |
| Normal Storage | 103 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 102 sq mi |
| Max Discharge | 930 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | G-l-m Watershed Subdist |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO12263 |
| Federal ID | MO12263 |
| More Info | State Dam Safety Program |