Grindstone-lost-muddy Watershed Dam B-3a
Grindstone-lost-muddy Watershed Dam B-3a is an earth dam located in DeKalb County, Missouri, built in 1985. It carries a Low hazard potential classification.
About Grindstone-lost-muddy Watershed Dam B-3a
The primary purpose of Grindstone-lost-muddy Watershed Dam B-3a 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 Sub Dist (local government). It impounds the Tr-west Fork Lost Creek near Pattonsburg.
The dam stands 32 feet tall and stretches 750 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 390 acre-feet, and collects water from a drainage area of 32 square miles. Completed in 1985, the structure is 41 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 32 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | Missouri |
| County | DeKalb |
| Nearest City | Pattonsburg |
| River/Stream | Tr-west Fork Lost Creek |
| Coordinates | 39.86144, -94.38075 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 750 ft |
| Year Completed | 1985 (41 years old) |
Storage & Hydraulics
| NID Storage | 390 acre-ft |
| Max Storage | 390 acre-ft |
| Normal Storage | 64 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 32 sq mi |
| Max Discharge | 720 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | GLM WATERSHED SUB DIST |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO12253 |
| Federal ID | MO12253 |
| More Info | State Dam Safety Program |