Grassy Creek Watershed Dam G- 59 is an earth dam located in Lewis County, Missouri, built in 2007. It carries a Low hazard potential classification.
Dam profile
NID height · 38 ft38 ft tall and 540 ft long, taller than 84% 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 Grassy Creek Watershed Dam G- 59
The primary purpose of Grassy Creek Watershed Dam G- 59 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 Grassy Creek W/s District (local government). It impounds the Grassy Creek near Lewistown.
The dam stands 38 feet tall and stretches 540 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 87 acre-feet, and collects water from a drainage area of 192 square miles. Completed in 2007, the structure is relatively new.
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 38 feet, this dam is taller than 84% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Missouri |
| County | Lewis |
| Nearest City | Lewistown |
| River/Stream | Grassy Creek |
| Coordinates | 40.06570, -91.79060 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 38 ft |
| Dam Height | 26 ft |
| Dam Length | 540 ft |
| Year Completed | 2007 (19 years old) |
Storage & Hydraulics
| NID Storage | 87 acre-ft |
| Max Storage | 87 acre-ft |
| Normal Storage | 25 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 192 sq mi |
| Max Discharge | 5 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Grassy Creek W/s District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO51421 |
| Federal ID | MO51421 |
| More Info | State Dam Safety Program |