Rio Vista Dam

Rio Vista Dam is a concrete dam located in Hays County, Texas, built in 1904. It carries a Low hazard potential classification.

About Rio Vista Dam

The primary purpose of Rio Vista 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 San Marcos (local government). It impounds the San Marcos River.

The dam stands 8 feet tall and stretches 100 feet across, creates a reservoir covering 16 acres, and has a maximum storage capacity of 61 acre-feet. Completed in 1904, the structure is over a century old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 05/16/2006. That was over 19 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Yes

Location

StateTexas
CountyHays
River/StreamSan Marcos River
Coordinates29.87869, -97.93270

Physical Characteristics

Dam TypeConcrete
NID Height8 ft
Dam Height8 ft
Dam Length100 ft
Year Completed1904 (122 years old)

Storage & Hydraulics

NID Storage61 acre-ft
Max Storage61 acre-ft
Normal Storage61 acre-ft
Surface Area16 acres
Spillway TypeNone

Ownership & Safety

PurposeRecreation
OwnerCITY OF SAN MARCOS
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection05/16/2006
Emergency Action PlanYes

Identifiers

NID IDTX06886
Federal IDTX06886
More InfoState Dam Safety Program

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