Willow Creek Watershed Dam A- 24b is an earth dam located in Ray County, Missouri, built in 1970. It carries a Low hazard potential classification.
Dam profile
NID height · 31 ft31 ft tall and 570 ft long, taller than 72% 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 Willow Creek Watershed Dam A- 24b
The primary purpose of Willow Creek Watershed Dam A- 24b is grade stabilization. Grade stabilization dams prevent erosion by reducing the slope and velocity of water flowing through a channel. They're commonly used to stop gullies from deepening and to protect downstream land and infrastructure. The dam is owned by Willow Crk Wtsh Subdist (local government). It impounds the Tr-willow Creek near Henrietta.
The dam stands 31 feet tall and stretches 570 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 201 acre-feet, and collects water from a drainage area of 140 square miles. Completed in 1970, 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.
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Location
| State | Missouri |
| County | Ray |
| Nearest City | Henrietta |
| River/Stream | Tr-willow Creek |
| Coordinates | 39.27056, -94.01583 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 29 ft |
| Dam Length | 570 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 201 acre-ft |
| Max Storage | 201 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 140 sq mi |
| Max Discharge | 250 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | Willow Crk Wtsh Subdist |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO10235 |
| Federal ID | MO10235 |
| More Info | State Dam Safety Program |