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Water-Year Summary for Site 50125780

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Available Parameters
00045 Precipitation(Sum)  
72375 Elevation, lake/res, LMSL(Obs.) [OLDPR]  
72379 Elevation, lake/res, PRVD02(Obs.)  

Water year 2024: 2024-10-01 to 2025-09-30
 
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USGS Water-Year Summary 2024
50125780 LAGO LUCCHETTI AT DAMSITE NEAR YAUCO, PR
LOCATION - Lat 18°05'38.14", long 66°51'54.19" referenced to North American Datum of 1927, Yauco Municipio, PR, Hydrologic Unit 21010004, at Antonio Lucchetti Dam on Río Yauco and 3.9 mi (6.3 km) north of Yauco.
DRAINAGE AREA - 17.4 mi². (45.1 km2).
REVISIONS HISTORY - Datum of gage was previously reported in the site file as 393.7 ft (120.0 m) above NGVD29 and LMSL-Old PR. NGVD29 datum does not exist in Puerto Rico and the correct LMSL-Old PR elevation is 500 ft (152.4 m), published historical records did not reflect this site file typo. Revised to PRVD02 Datum in October 2022.  
SURFACE-WATER RECORDS
PERIOD OF RECORD - December 7, 1989 to current year.
GAGE - Water-stage recorder, satellite and radio telemetry at station. Datum of gage is above Local Mean Sea Level (LMSL- Old PR) and above Puerto Rico Vertical Datum of 2002 (PRVD02).
REMARKS - Lago Lucchetti was completed in 1952. The dam is on Río Yauco and is a unit of the Southwestern Puerto Rico Project. It provides 16,500 acre-ft (20.3 hm3) of usable storage for power generation and irrigation. The dam is a concrete gravity structure with a total length of 591 ft (180 m), a maximum height of 178 ft (54 m), and a maximum width at the base of 150 ft (46 m). An ungated, overflow type spillway with a clear length of 171 ft (52 m), and a maximum capacity of 62,800 ft³/s (1,778 m3/s) at a design head of 20 ft (6 m).
EXTREMES FOR PERIOD OF RECORD - Maximum elevation, 579.88 ft (176.75 m), September 20, 2017; minimum elevation, 512.09 ft (156.08 m), September 9, 1994.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - June 2018 to current year.
INSTRUMENTATION - Tipping bucket precipitation gage and data collection platform – 15 minutes interval.