Cottonwood Creek Detention Dam

Hays, Texas· 13 ft tall
Low Hazard Local Government

Key Takeaway

Cottonwood Creek Detention Dam is classified as low hazard in Texas.

Physical Details

Dam Height 13 ft (taller than 10.2% in TX)
Max Storage60 acre-ft
Normal Storage650 acre-ft
NID IDTX07490

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
State Regulated: Yes
Regulatory Agency: TCEQ

Ownership

CITY OF SAN MARCOS

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Cottonwood Creek Detention Dam?

Cottonwood Creek Detention Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Cottonwood Creek Detention Dam?

Cottonwood Creek Detention Dam is owned by CITY OF SAN MARCOS (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

How tall is Cottonwood Creek Detention Dam?

Cottonwood Creek Detention Dam has a dam height of 13 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.