Degray Reregulation Dam

Degray Reregulation Dam is a gravity dam located in Clark County, Arkansas, built in 1971. It carries a High hazard potential classification.

Hazard potentialHighFailure would probably cost lives
ConditionNot assessed
Emergency action planOn file
Last inspection07/22/2020
Height52 ft
Built197155 years ago

Dam profile

NID height · 52 ft
52 FT TEN-STORY BUILDINGMEDIAN U.S. DAM · 24 FT

52 ft tall and 1,410 ft long, taller than 93% 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 concrete gravity section and the water level is illustrative.

About Degray Reregulation Dam

The primary purpose of Degray Reregulation Dam is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by USACE - Vicksburg District (federal). It impounds the Caddo near Caddo Valley.

The dam stands 52 feet tall and stretches 1,410 feet across, creates a reservoir covering 90 acres, has a maximum storage capacity of 6,800 acre-feet, and collects water from a drainage area of 480 square miles. Completed in 1971, the structure is well into its service life at over 50 years old.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. An emergency action plan is in place for this dam. The most recent inspection on record was 07/22/2020.

At 52 feet, this dam is taller than 93% of dams nationwide.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Arkansas dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

Location

StateArkansas
CountyClark
Nearest CityCaddo Valley
River/StreamCaddo
Coordinates34.17749, -93.10006

Physical Characteristics

Dam TypeGravity
NID Height52 ft
Dam Length1,410 ft
Year Completed1971 (55 years old)

Storage & Hydraulics

NID Storage6,800 acre-ft
Max Storage6,800 acre-ft
Normal Storage600 acre-ft
Surface Area90 acres
Drainage Area480 sq mi
Max Discharge25,000 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeHydroelectric
OwnerUSACE - Vicksburg District
Owner TypeFederal
Hazard ClassificationHigh
Condition AssessmentNot assessed
Last Inspection07/22/2020
Emergency Action PlanYes

Identifiers

NID IDAR00153
Federal IDAR00153
More InfoState Dam Safety Program