William Trunk Lake Dam is a dam located in Jefferson County, Missouri, built in 1990. It carries a Significant hazard potential classification.
Dam profile
NID height · 29 ft29 ft tall, taller than 65% 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 William Trunk Lake Dam
The primary purpose of William Trunk Lake Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is private-owned.
The dam stands 29 feet tall, creates a reservoir covering 1 acres, and has a maximum storage capacity of 16 acre-feet. Completed in 1990, the structure is 36 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 | Jefferson |
| Coordinates | 38.09719, -90.44731 |
Physical Characteristics
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Year Completed | 1990 (36 years old) |
Storage & Hydraulics
| NID Storage | 16 acre-ft |
| Max Storage | 16 acre-ft |
| Normal Storage | 10 acre-ft |
| Surface Area | 1 acres |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO31963 |
| Federal ID | MO31963 |
| More Info | State Dam Safety Program |