Daguey Dam Structure 3

DAGUEY CREEK· Añasco, Puerto Rico· Built 1978· Earth· 50 ft tall
High Hazard Flood Risk Reduction State Government

Key Takeaway

Daguey Dam Structure 3 is classified as high hazard in Puerto Rico. It was completed in 1978 and is 48 years old. Its primary use is flood risk reduction. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 50 ft (taller than 13.9% in PR)
Dam Length560 ft
Dam TypeEarth
Max Storage334 acre-ft
Normal Storage334 acre-ft
Surface Area107 acres
Drainage Area1 sq mi
Max Discharge2,400 cfs
Year Completed1978 (48 years old)
NID IDPR00073

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

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

Emergency Action Plan: Yes
Last Inspection: April 16, 2021
State Regulated: Yes
Regulatory Agency: PREPA

Ownership

NATURAL RESOURCES AND ENVIRONMENTAL DEPT.

State Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Daguey Dam Structure 3?

Daguey Dam Structure 3 is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Daguey Dam Structure 3?

Daguey Dam Structure 3 is owned by NATURAL RESOURCES AND ENVIRONMENTAL DEPT. (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Daguey Dam Structure 3 built?

Daguey Dam Structure 3 was completed in 1978, making it 48 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

What is the primary purpose of Daguey Dam Structure 3?

Daguey Dam Structure 3 serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Daguey Dam Structure 3?

Daguey Dam Structure 3 has a dam height of 50 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.

When was Daguey Dam Structure 3 last inspected?

Daguey Dam Structure 3 was last inspected on April 16, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.

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.