Lake Benjamin Dam

Lake Benjamin Dam is an earth dam located in Knox County, Texas, built in 1929. It carries a Significant hazard potential classification.

Hazard potentialSignificantFailure could cause major damage
ConditionNot assessed
Emergency action planOn file
Last inspection07/23/2024
Height22 ft
Built192997 years ago

Dam profile

NID height · 22 ft
22 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

22 ft tall and 3,100 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.

About Lake Benjamin Dam

The primary purpose of Lake Benjamin Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City of Benjamin (local government). It impounds the Tr-dutchman Creek.

The dam stands 22 feet tall and stretches 3,100 feet across, and has a maximum storage capacity of 1,496 acre-feet. Completed in 1929, the structure is well-established, with more than 75 years of service.

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 07/23/2024.

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Location

StateTexas
CountyKnox
River/StreamTr-dutchman Creek
Coordinates33.56435, -99.79787

Physical Characteristics

Dam TypeEarth
NID Height22 ft
Dam Height22 ft
Dam Length3,100 ft
Year Completed1929 (97 years old)

Storage & Hydraulics

NID Storage1,496 acre-ft
Max Storage1,496 acre-ft
Normal Storage914 acre-ft
Max Discharge1 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerCity of Benjamin
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentNot assessed
Last Inspection07/23/2024
Emergency Action PlanYes

Identifiers

NID IDTX01427
Federal IDTX01427
More InfoState Dam Safety Program