Grindstome-lost-muddy Watershed Dam Lt-125 is an earth dam located in DeKalb County, Missouri, built in 1985. It carries a Low hazard potential classification.
Dam profile
NID height · 30 ft30 ft tall and 450 ft long, taller than 68% 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 Grindstome-lost-muddy Watershed Dam Lt-125
The primary purpose of Grindstome-lost-muddy Watershed Dam Lt-125 is grade stabilization. Grade stabilization dams prevent erosion by reducing the slope and velocity of water flowing through a channel. They're commonly used to stop gullies from deepening and to protect downstream land and infrastructure. The dam is owned by John Donovan (private). It impounds the Tr-grindstone Creek near Weatherby.
The dam stands 30 feet tall and stretches 450 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 46 acre-feet, and collects water from a drainage area of 325 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.
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Location
| State | Missouri |
| County | DeKalb |
| Nearest City | Weatherby |
| River/Stream | Tr-grindstone Creek |
| Coordinates | 39.84170, -94.22831 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 450 ft |
| Year Completed | 1985 (41 years old) |
Storage & Hydraulics
| NID Storage | 46 acre-ft |
| Max Storage | 46 acre-ft |
| Normal Storage | 19 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 325 sq mi |
| Max Discharge | 58 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | John Donovan |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO12254 |
| Federal ID | MO12254 |
| More Info | State Dam Safety Program |