Darby is an earth dam located in Franklin County, Arkansas, built in 1956. It carries a Significant hazard potential classification.

About Darby

The primary purpose of Darby is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of Charleston;fort Chaffee (federal). It impounds the Tr Prairie Creek near Charleston.

The dam stands 27 feet tall and stretches 900 feet across, creates a reservoir covering 150 acres, has a maximum storage capacity of 1,123 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1956, 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. An emergency action plan is in place for this dam. The most recent inspection on record was 07/20/1992. That was over 33 years ago.

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

Data note: Hazard potential describes the consequences if a dam failed; it does not predict the likelihood of failure. Inspection, condition, and emergency-plan fields can be incomplete or delayed. Check state dam-safety officials and local emergency managers for official guidance.
Significant HazardNot Available ConditionEmergency Action Plan: Yes

Location

StateArkansas
CountyFranklin
Nearest CityCharleston
River/StreamTr Prairie Creek
Coordinates35.26833, -94.02833

Physical Characteristics

Dam TypeEarth
NID Height27 ft
Dam Height27 ft
Dam Length900 ft
Year Completed1956 (70 years old)

Storage & Hydraulics

NID Storage1,123 acre-ft
Max Storage1,123 acre-ft
Normal Storage516 acre-ft
Surface Area150 acres
Drainage Area2 sq mi
Max Discharge4,125 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeWater Supply
OwnerCITY OF CHARLESTON;Fort Chaffee
Owner TypeFederal
Hazard ClassificationSignificant
Condition AssessmentNot Available
Last Inspection07/20/1992
Emergency Action PlanYes

Identifiers

NID IDAR00417
Federal IDAR00417
More InfoState Dam Safety Program