Williams Creek #4 Dam
Williams Creek #4 Dam is an earth dam located in Clay County, Missouri, built in 1969. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Williams Creek #4 Dam
The primary purpose of Williams Creek #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 owned by Clay Co. Parks & Rec (state). It impounds the Tr To Williams Creek near Mosby.
The dam stands 46 feet tall and stretches 800 feet across, creates a reservoir covering 26 acres, has a maximum storage capacity of 598 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1969, the structure is well into its service life at over 50 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 11/19/2019.
At 46 feet, this dam is taller than 91% of dams nationwide.
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Location
| State | Missouri |
| County | Clay |
| Nearest City | Mosby |
| River/Stream | Tr To Williams Creek |
| Coordinates | 39.35621, -94.27584 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 46 ft |
| Dam Height | 46 ft |
| Dam Length | 800 ft |
| Year Completed | 1969 (57 years old) |
Storage & Hydraulics
| NID Storage | 598 acre-ft |
| Max Storage | 598 acre-ft |
| Normal Storage | 598 acre-ft |
| Surface Area | 26 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 1,188 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | CLAY CO. PARKS & REC |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/19/2019 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MO10026 |
| Federal ID | MO10026 |
| More Info | State Dam Safety Program |