Owensby Number One Dam is an earth dam located in Marengo County, Alabama, built in 1972. It carries a Significant hazard potential classification.
Dam profile
NID height · 28 ft28 ft tall and 300 ft long, taller than 62% 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 Owensby Number One Dam
The primary purpose of Owensby Number One Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Paul S Owensby (private). It impounds the Tr-sycamore Creek near St Louis and Frisco R R.
The dam stands 28 feet tall and stretches 300 feet across, and has a maximum storage capacity of 62 acre-feet. Completed in 1972, the structure is well into its service life at over 50 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 | Alabama |
| County | Marengo |
| Nearest City | St Louis and Frisco R R |
| River/Stream | Tr-sycamore Creek |
| Coordinates | 32.31000, -87.81167 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Length | 300 ft |
| Year Completed | 1972 (54 years old) |
Storage & Hydraulics
| NID Storage | 62 acre-ft |
| Max Storage | 62 acre-ft |
| Normal Storage | 53 acre-ft |
| Max Discharge | 3,180 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | Paul S Owensby |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Emergency Action Plan | No |
Identifiers
| NID ID | AL00128 |
| Federal ID | AL00128 |
| More Info | ASDSO on Alabama (no state dam safety program) |