Williams Creek Watershed Dam 1
Williams Creek Watershed Dam 1 is an earth dam located in Clay County, Missouri, built in 1971. It carries a Low hazard potential classification.
About Williams Creek Watershed Dam 1
The primary purpose of Williams Creek Watershed Dam 1 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 Williams Cr Wrsd Subdist (local government). It impounds the Tr-williams Creek near Mosby.
The dam stands 34 feet tall and stretches 1,100 feet across, creates a reservoir covering 13 acres, has a maximum storage capacity of 485 acre-feet, and collects water from a drainage area of 125 square miles. Completed in 1971, 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. The most recent inspection on record was 08/04/1978. That was over 47 years ago.
At 34 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Missouri |
| County | Clay |
| Nearest City | Mosby |
| River/Stream | Tr-williams Creek |
| Coordinates | 39.38779, -94.27201 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Dam Length | 1,100 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 485 acre-ft |
| Max Storage | 485 acre-ft |
| Normal Storage | 91 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 125 sq mi |
| Max Discharge | 860 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | WILLIAMS CR WRSD SUBDIST |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 08/04/1978 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO10728 |
| Federal ID | MO10728 |
| More Info | State Dam Safety Program |