Big Nance Creek W/s Dam Site 4

Big Nance Creek W/s Dam Site 4 is an earth dam located in Lawrence County, Alabama, built in 1987. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspection03/25/2004
Height61 ft
Built198739 years ago

Dam profile

NID height · 61 ft
61 FT TEN-STORY BUILDINGMEDIAN U.S. DAM · 24 FT

61 ft tall and 520 ft long, taller than 95% 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 Big Nance Creek W/s Dam Site 4

The primary purpose of Big Nance Creek W/s Dam Site 4 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Lawrence Co. Commission (local government). It impounds the Crooked Creek near Courtland.

The dam stands 61 feet tall and stretches 520 feet across, creates a reservoir covering 80 acres, has a maximum storage capacity of 9,000 acre-feet, and collects water from a drainage area of 13 square miles. Completed in 1987, the structure is 39 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. The most recent inspection on record was 03/25/2004. That was over 22 years ago.

At 61 feet, this dam is taller than 95% of all dams in the United States.

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Location

StateAlabama
CountyLawrence
Nearest CityCourtland
River/StreamCrooked Creek
Coordinates34.59380, -87.38330

Physical Characteristics

Dam TypeEarth
NID Height61 ft
Dam Height50 ft
Dam Length520 ft
Year Completed1987 (39 years old)

Storage & Hydraulics

NID Storage9,000 acre-ft
Max Storage9,000 acre-ft
Normal Storage292 acre-ft
Surface Area80 acres
Drainage Area13 sq mi
Max Discharge6,200 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerLawrence Co. Commission
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot assessed
Last Inspection03/25/2004
Emergency Action PlanNot Required

Identifiers

NID IDAL02318
Federal IDAL02318
More InfoASDSO on Alabama (no state dam safety program)