Grindstone-lost-muddy Watershed Dam B- 7 is an earth dam located in DeKalb County, Missouri, built in 1985. It carries a Low hazard potential classification.
Dam profile
NID height · 27 ft27 ft tall and 750 ft long, taller than 59% 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 B- 7
The primary purpose of Grindstone-lost-muddy Watershed Dam B- 7 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 Cr Wtsh Subdistrict (local government). It impounds the Tr-west Fork Lost Creek near Pattonsburg.
The dam stands 27 feet tall and stretches 750 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 380 acre-feet, and collects water from a drainage area of 89 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.
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 | Tr-west Fork Lost Creek |
| Coordinates | 39.85866, -94.33749 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 750 ft |
| Year Completed | 1985 (41 years old) |
Storage & Hydraulics
| NID Storage | 380 acre-ft |
| Max Storage | 380 acre-ft |
| Normal Storage | 52 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 89 sq mi |
| Max Discharge | 696 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Glm Cr Wtsh Subdistrict |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO12261 |
| Federal ID | MO12261 |
| More Info | State Dam Safety Program |