USGS Water-Year Summary 2019
50115230 RIO PORTUGUES BLW PORTUGUES DAMSITE, PR
LOCATION - Lat 18°03'07", long 66°37'41" referenced to North American Datum of 1927, Ponce Municipio, PR, Hydrologic Unit 21010004, on right bank, 2.75 mi (4.42 km) northwest of Plaza Degetau at Ponce, 2.75 mi (4.42 km) southwest of Luis Muñoz Rivera School, 1.20 mi (1.93 km) northeast of Vicente Usera School, 1.15 mi (1.85 km) southeast of Industrial de Niñas School, and 0.93 mi (1.50 km) downstream from Portugués Dam construction.
DRAINAGE AREA - 11.24 mi², (29.11 km2).
PERIOD OF RECORD - October 2007 to September 30, 2012; discontinued. Although gage-height record has been recorded since January 2002. The construction of the Puerto Rico State Highway 10 (PR-10) and the Portugués Dam upstream from the station, has made the stage-discharge relationship unreliable from January 2002 to September 2006. Gage-height record available at the files of the U.S. Geological Survey Caribbean-Florida Water Science Center in San Juan for those years of affected record.
GAGE - Water-stage recorder, satellite telemetry at station. Elevation of gage is 246 ft (75.0 m) above NGVD of 1929, from topographic map.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, undetermined, September 22, 2008, gage-height 7.67 ft (2.34 m); minimum daily discharge, 3.00 ft³/s (0.08 m3/s), April 6, 2011.