Willow Creek Watershed Dam C- 1
Willow Creek Watershed Dam C- 1 is an earth dam located in Ray County, Missouri, built in 1972. It carries a Significant hazard potential classification.
About Willow Creek Watershed Dam C- 1
The primary purpose of Willow Creek Watershed Dam C- 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 Willow Cr Wrsd Subdistri (local government). It impounds the Tr-willow Creek near Henrietta.
The dam stands 27 feet tall and stretches 650 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 370 acre-feet, and collects water from a drainage area of 420 square miles. Completed in 1972, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 05/17/1979. That was over 47 years ago.
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Location
| State | Missouri |
| County | Ray |
| Nearest City | Henrietta |
| River/Stream | Tr-willow Creek |
| Coordinates | 39.25732, -93.96631 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 25 ft |
| Dam Length | 650 ft |
| Year Completed | 1972 (54 years old) |
Storage & Hydraulics
| NID Storage | 370 acre-ft |
| Max Storage | 370 acre-ft |
| Normal Storage | 59 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 420 sq mi |
| Max Discharge | 1,800 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | WILLOW CR WRSD SUBDISTRI |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Last Inspection | 05/17/1979 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO10239 |
| Federal ID | MO10239 |
| More Info | State Dam Safety Program |