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Water-Year Summary for Site 50027100

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
  • For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
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Available Parameters
62614 Elevation, lake/res, NGVD29(Obs.)  

Water year 2019: 2019-10-01 to 2020-09-30

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USGS Water-Year Summary 2019
LOCATION - Lat 18°20'14.76", long 66°40'01.10" referenced to North American Datum of 1927, Arecibo Municipio, PR, Hydrologic Unit 21010002, on upstream side of State Road 146 over dam site; close to the center of dam, 10 mi (16 km) southeast of Arecibo, 4.1 mi (6.6 km) north of Lago Caonillas Dam, 5.3 mi (8.5 km) northeast of Utuado plaza, and 3.8 m (6.1 km) of Antonio S├ínchez de Padilla School.
DRAINAGE AREA - 169.45 mi², (438.87 km2).
PERIOD OF RECORD - March 1999 to current year.
GAGE - Water-stage recorder, satellite and radio telemetry at station. Elevation of gage is above National Geodetic Vertical Datum (NGVD) of 1929, feet.
COOPERATION - Puerto Rico Aqueduct and Sewer Authority (PRASA).
REMARKS - Lago Dos Bocas was completed in 1942. The dam is a concrete gravity structure with a total length of 1,317 ft (401.4 m), a maximum height of 188 ft (57.3 m), and a maximum base width of 158 ft (48.2 m). No overflow sections on each abutment have a total length of 957 ft (292 m). The dam and the powerplant comprise the Dos Bocas Hydroelectric Project and provides 32,000 acre-ft (39.456 hm3). A three-unit powerplant is located on the right bank of the slitting basin. The capacity of Lago Dos Bocas was computed to be 714.4 million ft³ (20.23 million m3) for June 1997.
EXTREMES FOR PERIOD OF RECORD - Maximum elevation, 303.24 ft (92.43 m), October 8, 2010; minimum elevation, 275.65 ft (84.02 m), August 7, 2012.