John Williams Lake Dam
John Williams Lake Dam is an earth dam located in Henry County, Missouri, built in 1977. It carries a Significant hazard potential classification.
About John Williams Lake Dam
The primary purpose of John Williams Lake Dam 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 John Williams (private). It impounds the Tr-east Fork Honey Creek near Warsaw.
The dam stands 27 feet tall and stretches 660 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 286 acre-feet, and collects water from a drainage area of 89 square miles. Completed in 1977, the structure is 49 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.
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Location
| State | Missouri |
| County | Henry |
| Nearest City | Warsaw |
| River/Stream | Tr-east Fork Honey Creek |
| Coordinates | 38.53530, -93.78371 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 26 ft |
| Dam Length | 660 ft |
| Year Completed | 1977 (49 years old) |
Storage & Hydraulics
| NID Storage | 286 acre-ft |
| Max Storage | 286 acre-ft |
| Normal Storage | 126 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 89 sq mi |
| Max Discharge | 165 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | JOHN WILLIAMS |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO20649 |
| Federal ID | MO20649 |
| More Info | State Dam Safety Program |