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Water-Year Summary for Site 16605500

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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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  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
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Available Parameters
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023
16605500 Wailuku River at Iao Valley Road, Maui, HI
LOCATION - Lat 20°52'58.7", long 156°32'01.8" referenced to North American Datum of 1983, Maui County, HI, Hydrologic Unit 20020000,
DRAINAGE AREA - 6.59 mi².  
PERIOD OF RECORD - Continuous surface water gage October 2019 to current year.
GAGE - Water stage recorder.  Elevation of gage is 663 feet above local mean sea level (LMSL) from digital elevation map.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 1,340 ft³/s (estimated), December 25, 2019, gage height, 7.04 ft; minimum, 3.94 ft³/s (estimated), October 30, 2019, gage height 2.78 ft.