Coamo Dam
Dam in Santa Isabel County, Puerto Rico · Coamo River · forms Lago Coamo
Height
65 ft
20 m (NID height)
Completed
1914
Lago Coamo today
159.97 ft
7 days 0.00 ft
Normal storage
100 acre-ft
Much below normal for the date
Reservoir level measured Oct 23, 2026, 12:45 PM AST. Full level page →
Facts
- Purposes
- Irrigation
- Dam type
- Buttress
- Structural height
- 65 ft
- Owner
- COMMONWEALTH OF PUERTO RICO (State)
- Maximum storage
- 1,380 acre-ft
- Surface area
- 145 acres
- Hydraulic height
- 64 ft
- Drainage area
- 66 sq mi
- Spillway
- Uncontrolled, 595 ft wide
- Army Corps district
- Jacksonville District
- Also known as
- Lago Coamo
- NID ID
- PR00016
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 6, 2026. Search NID ID PR00016 at nid.sec.usace.army.mil. Project website.