Delta Lake Unit No 1 Levee

Delta Lake Unit No 1 Levee is an earth dam located in Hidalgo County, Texas, built in 1939. It carries a High hazard potential classification.

About Delta Lake Unit No 1 Levee

The primary purpose of Delta Lake Unit No 1 Levee is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Delta Lake Irrigation District (local government). It impounds the Off Ch near Raymondville.

The dam stands 12 feet tall and stretches 23,975 feet across, creates a reservoir covering 490 acres, has a maximum storage capacity of 7,350 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1939, the structure is well-established, with more than 75 years of service.

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 04/04/2019.

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
CountyHidalgo
Nearest CityRaymondville
River/StreamOff Ch
Coordinates26.41950, -97.95641

Physical Characteristics

Dam TypeEarth
NID Height12 ft
Dam Height12 ft
Dam Length23,975 ft
Year Completed1939 (87 years old)

Storage & Hydraulics

NID Storage7,350 acre-ft
Max Storage7,350 acre-ft
Normal Storage3,185 acre-ft
Surface Area490 acres
Drainage Area0 sq mi
Spillway TypeNone

Ownership & Safety

PurposeIrrigation
OwnerDELTA LAKE IRRIGATION DISTRICT
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentNot Rated
Last Inspection04/04/2019
Emergency Action PlanYes

Identifiers

NID IDTX03791
Federal IDTX03791
More InfoState Dam Safety Program

Nearby Dams