Block Lake Dam is an earth dam located in Montgomery County, Missouri. It carries a Significant hazard potential classification.
Dam profile
NID height · 33 ft33 ft tall, taller than 76% 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 Block Lake Dam
Block Lake Dam is a dam in Montgomery, Missouri. The dam is owned by Tom Block (private).
The dam stands 33 feet tall, creates a reservoir covering 21 acres, has a maximum storage capacity of 278 acre-feet, and collects water from a drainage area of 2,710 square miles.
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.
At 33 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | Missouri |
| County | Montgomery |
| Nearest City | Wellsville |
| Coordinates | 39.00793, -91.57964 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 33 ft |
| Dam Height | 33 ft |
Storage & Hydraulics
| NID Storage | 278 acre-ft |
| Max Storage | 278 acre-ft |
| Normal Storage | 232 acre-ft |
| Surface Area | 21 acres |
| Drainage Area | 2,710 sq mi |
Ownership & Safety
| Owner | Tom Block |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO32038 |
| Federal ID | MO32038 |
| More Info | State Dam Safety Program |