Guayo Dam
Dam in Adjuntas County, Puerto Rico · Guayo River · forms Lago Guayo
Height
190 ft
58 m (NID height)
Length
555 ft
169 m
Completed
1956
Lago Guayo today
1,460.05 ft
7 days ▲ 2.67 ft
Normal storage
17,400 acre-ft
Normal for the date
Reservoir level measured Oct 23, 2026, 10:45 AM AST. Full level page →
Facts
- Purposes
- Hydroelectric; Irrigation; Water Supply
- Dam type
- Gravity
- Structural height
- 190 ft
- Owner
- PUERTO RICO ELECTRIC POWER AUTHORITY (Public Utility)
- Maximum storage
- 19,000 acre-ft
- Surface area
- 285 acres
- Hydraulic height
- 190 ft
- Drainage area
- 10 sq mi
- Spillway
- Uncontrolled, 220 ft wide
- Army Corps district
- Jacksonville District
- Also known as
- Lago Guayo
- NID ID
- PR00005
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 6, 2026. Search NID ID PR00005 at nid.sec.usace.army.mil. Project website.