USGS Water-Year Summary 2021
16296500 Kahana Stream at altitude 30 feet near Kahana, Oahu, HI
LOCATION - Lat 21°32'26.2", long 157°52'57.2" referenced to North American Datum of 1983, Honolulu County, HI, Hydrologic Unit 20060000, on right bank 600 feet upstream from Kawa Stream, 1.1 miles southwest of Kahana, and 2.2 miles southwest of Swanzy Beach Park in Kaaawa.
DRAINAGE AREA - 3.73 mi². from automated delineation using 10-meter National Elevation Dataset digital elevation model data dated September 2006 and Watershed Boundary Dataset dated May 2008, using UTM Zone 4 projection, NAD 83 horizontal datum.
- WSP 1937: 1959-60. WDR HI-10-1: Drainage Area.
PERIOD OF RECORD - December 1958 to current year.
GAGE - Water-stage recorder and concrete-masonry control. Elevation of gage is 30 feet above mean sea level (from topographic map).
EXTREMES FOR PERIOD OF RECORD - Maximum discharge: 11,100 ft³/s on June 4, 2011, from slope-area computation at gage height 11.32 feet; mimimum, 9.9 ft³/s, June 5, 2000.