Grindstone-lost-muddy Watershed Dam B-5
Grindstone-lost-muddy Watershed Dam B-5 is an earth dam located in DeKalb County, Missouri, built in 1984. It carries a Significant hazard potential classification.
About Grindstone-lost-muddy Watershed Dam B-5
The primary purpose of Grindstone-lost-muddy Watershed Dam B-5 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 Grnsn-ls-mdy Wrsd Sbdist (local government). It impounds the Tr-west Fork Creek near Pattonsburg.
The dam stands 25 feet tall and stretches 775 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 530 acre-feet, and collects water from a drainage area of 25 square miles. Completed in 1984, the structure is 42 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life.
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Location
| State | Missouri |
| County | DeKalb |
| Nearest City | Pattonsburg |
| River/Stream | Tr-west Fork Creek |
| Coordinates | 39.89569, -94.39756 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 775 ft |
| Year Completed | 1984 (42 years old) |
Storage & Hydraulics
| NID Storage | 530 acre-ft |
| Max Storage | 530 acre-ft |
| Normal Storage | 61 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 25 sq mi |
| Max Discharge | 1,130 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | GRNSN-LS-MDY WRSD SBDIST |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO50093 |
| Federal ID | MO50093 |
| More Info | State Dam Safety Program |