Lucchetti Dam

YAUCO RIVER· Yauco, Puerto Rico· Built 1952· Gravity· 169 ft tall
High Hazard Irrigation Public Utility

Key Takeaway

Lucchetti Dam is classified as high hazard in Puerto Rico. It was completed in 1952 and is 74 years old. Its primary use is irrigation. 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 169 ft (taller than 77.8% in PR)
Dam TypeGravity
Max Storage20.8K acre-ft
Normal Storage14.8K acre-ft
Surface Area266 acres
Drainage Area17 sq mi
Max Discharge62,800 cfs
Year Completed1952 (74 years old)
NID IDPR00003

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: September 3, 2020
State Regulated: Yes
Regulatory Agency: PREPA

Ownership

PUERTO RICO ELECTRIC POWER AUTHORITY

Public Utility

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lucchetti Dam?

Lucchetti Dam 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 Lucchetti Dam?

Lucchetti Dam is owned by PUERTO RICO ELECTRIC POWER AUTHORITY (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lucchetti Dam built?

Lucchetti Dam was completed in 1952, making it 74 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 Lucchetti Dam?

Lucchetti Dam serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Lucchetti Dam?

Lucchetti Dam has a dam height of 169 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 Lucchetti Dam last inspected?

Lucchetti Dam was last inspected on September 3, 2020. 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.