Grassy Creek Watershed Dam G- 92 is an earth dam located in Lewis County, Missouri, built in 2007. It carries a Low hazard potential classification.
Dam profile
NID height · 30 ft30 ft tall and 520 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 Grassy Creek Watershed Dam G- 92
The primary purpose of Grassy Creek Watershed Dam G- 92 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 Durham.
The dam stands 30 feet tall and stretches 520 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 114 acre-feet, and collects water from a drainage area of 172 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.
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Location
| State | Missouri |
| County | Lewis |
| Nearest City | Durham |
| River/Stream | Grassy Creek |
| Coordinates | 39.95150, -91.70150 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 25 ft |
| Dam Length | 520 ft |
| Year Completed | 2007 (19 years old) |
Storage & Hydraulics
| NID Storage | 114 acre-ft |
| Max Storage | 114 acre-ft |
| Normal Storage | 33 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 172 sq mi |
| Max Discharge | 4 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 | MO51422 |
| Federal ID | MO51422 |
| More Info | State Dam Safety Program |