W D Harrigan is an earth dam located in Clarke County, Alabama, built in 1960. It carries a Low hazard potential classification.
Dam profile
NID height · 44 ft44 ft tall and 530 ft long, taller than 89% 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 W D Harrigan
The primary purpose of W D Harrigan is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by W D Harrigan Est (private). It impounds the Tr-bassett Creek near Whatley.
The dam stands 44 feet tall and stretches 530 feet across, has a maximum storage capacity of 642 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1960, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
At 44 feet, this dam is taller than 89% of dams nationwide.
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Location
| State | Alabama |
| County | Clarke |
| Nearest City | Whatley |
| River/Stream | Tr-bassett Creek |
| Coordinates | 31.73333, -87.73333 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 44 ft |
| Dam Height | 44 ft |
| Dam Length | 530 ft |
| Year Completed | 1960 (66 years old) |
Storage & Hydraulics
| NID Storage | 642 acre-ft |
| Max Storage | 642 acre-ft |
| Normal Storage | 402 acre-ft |
| Drainage Area | 1 sq mi |
| Max Discharge | 393 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | W D Harrigan Est |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | AL02008 |
| Federal ID | AL02008 |
| More Info | ASDSO on Alabama (no state dam safety program) |