East Fork Grand River F-4 Dam is an earth dam located in Worth County, Missouri, built in 2004. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 41 ft41 ft tall and 1,000 ft long, taller than 87% 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 East Fork Grand River F-4 Dam
The primary purpose of East Fork Grand River F-4 Dam 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 local government-owned. It impounds the Adams Branch near Allendale.
The dam stands 41 feet tall and stretches 1,000 feet across, creates a reservoir covering 19 acres, has a maximum storage capacity of 880 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 2004, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 08/11/2020.
At 41 feet, this dam is taller than 87% of dams nationwide.
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Location
| State | Missouri |
| County | Worth |
| Nearest City | Allendale |
| River/Stream | Adams Branch |
| Coordinates | 40.51455, -94.24158 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 41 ft |
| Dam Height | 41 ft |
| Dam Length | 1,000 ft |
| Year Completed | 2004 (22 years old) |
Storage & Hydraulics
| NID Storage | 880 acre-ft |
| Max Storage | 880 acre-ft |
| Normal Storage | 163 acre-ft |
| Surface Area | 19 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 3,200 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/11/2020 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MO40122 |
| Federal ID | MO40122 |
| More Info | State Dam Safety Program |