Grassy Creek Watershed Dam G- 62 is an earth dam located in Lewis County, Missouri, built in 1987. It carries a Low hazard potential classification.
Dam profile
NID height · 21 ft21 ft tall and 430 ft long. 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- 62
The primary purpose of Grassy Creek Watershed Dam G- 62 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 Ck Subdistrict (local government). It impounds the Tr-grassy Creek near Ewing.
The dam stands 21 feet tall and stretches 430 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 66 acre-feet, and collects water from a drainage area of 364 square miles. Completed in 1987, the structure is 39 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 | Lewis |
| Nearest City | Ewing |
| River/Stream | Tr-grassy Creek |
| Coordinates | 40.04172, -91.75806 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 20 ft |
| Dam Length | 430 ft |
| Year Completed | 1987 (39 years old) |
Storage & Hydraulics
| NID Storage | 66 acre-ft |
| Max Storage | 66 acre-ft |
| Normal Storage | 19 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 364 sq mi |
| Max Discharge | 120 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Grassy Ck Subdistrict |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO50309 |
| Federal ID | MO50309 |
| More Info | State Dam Safety Program |