Carraízo Reservoir Water Level
Lago Loíza (Carraízo) · Trujillo Alto, Puerto Rico · operated by Puerto Rico Aqueduct and Sewer Authority (PRASA/AAA)
Water level
40.91 m
above mean sea level · 2026-10-12
At 40.91 m, Carraízo Reservoir is above its seasonal norm — higher than 79.5% of all October days recorded since 1990.
Recorded range
33.11 – 41.99 m
Position in range
87.8%
Seasonal percentile
79.5%
Record since
1990
No operating thresholds are published in an open format for this reservoir, so no official status is shown. The measured level and its seasonal standing are shown instead.
Drought context
Drought Monitor at this site · 6 October 2026
D1moderate drought
The ground at Carraízo Reservoir's coordinates falls inside the D1 area of the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. Puerto Rico drought figures →
The chart plots where the water level sits inside the range this reservoir has recorded since 1990 (33.11 m to 41.99 m). It is a level position, not a share of storage capacity — Puerto Rico does not publish reservoir volume.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Dam and gauge
Design capacity
28.99 hm³
National Inventory of Dams
USGS gauge
50059000
Daily values, 15-minute source data
Municipality
Trujillo Alto
North Puerto Rico
Primary use
water supply
PRASA / AAA
Design capacity is the volume the dam was built to impound, from the US Army Corps of Engineers' National Inventory of Dams. It describes the size of the reservoir — it is not used to compute a fill percentage, because the elevation-to-volume curve needed for that is not published for Puerto Rico.