Brazoria Reservoir Dam

Brazoria Reservoir Dam is an earth dam located in Brazoria County, Texas, built in 1954. It carries a High hazard potential classification.

About Brazoria Reservoir Dam

Brazoria Reservoir Dam is a dam in Brazoria, Texas. The dam is owned by The Dow Chemical Company (private). It impounds the Off Ch-brazos River.

The dam stands 20 feet tall and stretches 39,861 feet across, creates a reservoir covering 1,865 acres, has a maximum storage capacity of 32,088 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1954, 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 05/22/2019.

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 Texas 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.

High HazardNot Rated ConditionEmergency Action Plan: Yes

Location

StateTexas
CountyBrazoria
River/StreamOff Ch-brazos River
Coordinates29.06769, -95.51737

Physical Characteristics

Dam TypeEarth
NID Height20 ft
Dam Height20 ft
Dam Length39,861 ft
Year Completed1954 (72 years old)

Storage & Hydraulics

NID Storage32,088 acre-ft
Max Storage32,088 acre-ft
Normal Storage21,700 acre-ft
Surface Area1,865 acres
Drainage Area2 sq mi
Max Discharge1 cfs

Ownership & Safety

PurposeOther
OwnerTHE DOW CHEMICAL COMPANY
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentNot Rated
Last Inspection05/22/2019
Emergency Action PlanYes

Identifiers

NID IDTX01744
Federal IDTX01744
More InfoState Dam Safety Program

Nearby Dams