Brown Mud Lake No. 4

Brown Mud Lake No. 4 is an earth dam located in Saline County, Arkansas, built in 1975. It carries a Significant hazard potential classification and has a fair condition assessment.

About Brown Mud Lake No. 4

Brown Mud Lake No. 4 is a dam in Saline, Arkansas. The dam is owned by Alcoa (private). It impounds the Brier Lick Branch-tr near Sardis.

The dam stands 68 feet tall and stretches 2,550 feet across, creates a reservoir covering 57 acres, has a maximum storage capacity of 1,670 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1975, 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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 12/10/2020.

At 68 feet, this dam is taller than 96% of all dams in the United States.

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Significant HazardFair ConditionEmergency Action Plan: Not Required

Location

StateArkansas
CountySaline
Nearest CitySardis
River/StreamBrier Lick Branch-tr
Coordinates34.58028, -92.45722

Physical Characteristics

Dam TypeEarth
NID Height68 ft
Dam Height62 ft
Dam Length2,550 ft
Year Completed1975 (51 years old)

Storage & Hydraulics

NID Storage1,670 acre-ft
Max Storage1,670 acre-ft
Normal Storage1,370 acre-ft
Surface Area57 acres
Drainage Area0 sq mi
Max Discharge264 cfs

Ownership & Safety

PurposeOther
OwnerAlcoa
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection12/10/2020
Emergency Action PlanNot Required

Identifiers

NID IDAR01550
Federal IDAR01550
More InfoState Dam Safety Program

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