Impoundment No. 3 is a dam located in Jefferson County, Alabama. It carries a Significant hazard potential classification.
Dam profile
NID height · 80 ft80 ft tall, taller than 97% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About Impoundment No. 3
Impoundment No. 3 is a dam in Jefferson, Alabama. The dam is owned by Jim Walter Resources, Inc. (private).
The dam stands 80 feet tall.
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 80 feet, this dam is taller than 97% of all dams in the United States.
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Location
| State | Alabama |
| County | Jefferson |
| Nearest City | Graysville |
| Coordinates | 33.63970, -87.03340 |
Physical Characteristics
| NID Height | 80 ft |
| Dam Height | 80 ft |
Ownership & Safety
| Owner | Jim Walter Resources, Inc. |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Emergency Action Plan | No |
Identifiers
| NID ID | AL83456 |
| Federal ID | AL83456 |
| More Info | ASDSO on Alabama (no state dam safety program) |