Grant Lake Dam-north is a rockfill dam located in Buchanan County, Missouri, built in 1978. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic rockfill embankment section and the water level is illustrative.
About Grant Lake Dam-north
The primary purpose of Grant Lake Dam-north 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 Claude S Grant (private). It impounds the Tr-platte River near Platte City.
The dam stands 20 feet tall, creates a reservoir covering 10 acres, has a maximum storage capacity of 107 acre-feet, and collects water from a drainage area of 590 square miles. Completed in 1978, the structure is 48 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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Missouri |
| County | Buchanan |
| Nearest City | Platte City |
| River/Stream | Tr-platte River |
| Coordinates | 39.61617, -94.72297 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Year Completed | 1978 (48 years old) |
Storage & Hydraulics
| NID Storage | 107 acre-ft |
| Max Storage | 107 acre-ft |
| Normal Storage | 43 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 590 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Claude S Grant |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO12117 |
| Federal ID | MO12117 |
| More Info | State Dam Safety Program |