Michael Gallagher Lake Dam is a dam located in Jefferson County, Missouri, built in 1988. It carries a Significant hazard potential classification.
Dam profile
NID height · 22 ft22 ft tall. 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 Michael Gallagher Lake Dam
The primary purpose of Michael Gallagher Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is private-owned.
The dam stands 22 feet tall, creates a reservoir covering 2 acres, and has a maximum storage capacity of 24 acre-feet. Completed in 1988, the structure is 38 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 | 38.48225, -90.47056 |
Physical Characteristics
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Year Completed | 1988 (38 years old) |
Storage & Hydraulics
| NID Storage | 24 acre-ft |
| Max Storage | 24 acre-ft |
| Normal Storage | 15 acre-ft |
| Surface Area | 2 acres |
Ownership & Safety
| Purpose | Recreation |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO31971 |
| Federal ID | MO31971 |
| More Info | State Dam Safety Program |