Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins
! This page is undergoing modernization with expected decommissioning as key features are added to the modernized pages.
Learn more about our modernization plans to find out which options will suit you best. Next Generation Monitoring Location Page is available now.
A beta version of the My Favorites page is available in WDFN. Try it out and tell us what you think at wdfn@usgs.gov

USGS 50059050 RIO GRANDE DE LOIZA BLW LOIZA DAMSITE, PR

PROVISIONAL DATA SUBJECT TO REVISION

Click to hidestation-specific text
Click to go to the Autoridad de Acueductos y Alcantarillados de Puerto Rico web page

Station Drainage Area
Image of Rio Grande de Loiza below Loiza Damsite
Photos by USGS, Caribbean-Florida Water Science Center Hydrologic Technicians - San Juan.
This station managed by the Caribbean-Florida WSC - San Juan.

Available Parameters Available Period
  
2018-06-05  2022-12-21
1996-03-27  2026-04-11
2007-10-01  2026-04-11
2007-10-01  2026-04-11







 (7)
 
  -- or --

 

 
Summary of all available data for this site
Instantaneous-data availability statement

Precipitation, total, inches
 
-- Data temporarily unavailable for the time period specified --

Discharge, cubic feet per second
Most recent instantaneous value: 4.14 04-11-2026   08:45 AST
Graph of Discharge, cubic feet per second

Add up to 2 more sites and replot for "Discharge, cubic feet per second"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |

Daily discharge, cubic feet per second -- statistics for Apr 11 based on 39 water years of record more
Min
(2025)		 25th
percen-
tile		 Median Most Recent
Instantaneous
Value Apr 11		 75th
percen-
tile		 Mean Max
(2003)
0.00 0.98 2.8 4.14 7.2 161 5860

Gage height, feet
Most recent instantaneous value: 2.70 04-11-2026   08:45 AST
Graph of Gage height, feet

Add up to 2 more sites and replot for "Gage height, feet"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |


Stream water level elevation, above Puerto Rico Datum of 2002, feet
Most recent instantaneous value: 14.77 04-11-2026   08:45 AST
Graph of Stream water level elevation, above Puerto Rico Datum of 2002, feet

Add up to 2 more sites and replot for "Stream water level elevation, above Puerto Rico Datum of 2002, feet"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |