USGS Water-Year Summary 2021
50047560 RIO DE BAYAMON BELOW LAGO CIDRA, PR
LOCATION - Lat 18°12'10", long 66°08'21" referenced to North American Datum of 1927, Cidra Municipio, PR, Hydrologic Unit 21010005, 0.2 mi (0.3 km) downstream of Lago de Cidra Dam on right bank and 2.1 mi (3.4 km) northwest of Cidra plaza.
DRAINAGE AREA - 8.32 mi². (21.5 km2).
PERIOD OF RECORD - November 1, 1990 to September 30, 2004; continuous discharge. October 2004 to September 2013; miscellaneous discharge measurements only. October 2013 to current year.
GAGE - Water-stage recorder and satellite telemetry at station. Datum of gage is 1237.9 ft. (377.3 m) above Puerto Rico Vertical Datum of 2002 (PRVD02). Elevation or datum of gage was previously reported as 1,280 ft. (390 m) above mean sea level and NGVD 29 and was established via topographic map and a new GNSS survey was used to establish a PRVD02 datum because the topographic datum did not meet the new accuracy requirements.
PERIOD OF RECORD - April 7, 1993 to August 23, 2000; discontinued.