Grindstone-lost-muddy Watershed Dam Lt-301 is an earth dam located in Daviess County, Missouri, built in 1985. It carries a Low hazard potential classification.
Dam profile
NID height · 34 ft34 ft tall and 350 ft long, taller than 78% 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 Lt-301
The primary purpose of Grindstone-lost-muddy Watershed Dam Lt-301 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 Chretta Hiley (private). It impounds the Smith Creek near Alta Vista.
The dam stands 34 feet tall and stretches 350 feet across, creates a reservoir covering 15 acres, has a maximum storage capacity of 23 acre-feet, and collects water from a drainage area of 288 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 34 feet, this dam is taller than 78% of dams nationwide.
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Location
| State | Missouri |
| County | Daviess |
| Nearest City | Alta Vista |
| River/Stream | Smith Creek |
| Coordinates | 39.85819, -94.15873 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Dam Length | 350 ft |
| Year Completed | 1985 (41 years old) |
Storage & Hydraulics
| NID Storage | 23 acre-ft |
| Max Storage | 23 acre-ft |
| Normal Storage | 6 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 288 sq mi |
| Max Discharge | 32 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Chretta Hiley |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO12247 |
| Federal ID | MO12247 |
| More Info | State Dam Safety Program |