USGS Water-Year Summary 2019
14144700 COLUMBIA RIVER AT VANCOUVER, WA
LOCATION - Lat 45°37'15", long 122°40'20" referenced to North American Datum of 1927, in NE 1/4 NW 1/4 sec.34, T.2 N., R.1 E., Clark County, WA, Hydrologic Unit 17080003, near right bank, in control house of Interstate Highway 5 bridge at south edge of Vancouver, 5.0 mi upstream from Willamette River and at mile 106.5.
DRAINAGE AREA - 241,000 mi², approximately.
PERIOD OF RECORD - October 1963 to June 1970, February 1998 to current year (gage heights only).
GAGE - Water-stage recorder. Datum of gage is Columbia River Datum (add 1.82 ft to attain NGVD of 1929). Prior to February 1998, datum of gage was NGVD of 1929.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of June 7, 1894, reached a stage of 34.4 ft, present datum, from information provided by U.S. Army Corps of Engineers. Flood of June 13, 14, 1948, reached a stage of 31.0 ft, present datum, from National Weather Service records.
EXTREMES FOR PERIOD OF RECORD - Maximum gage height, 27.60 ft Dec. 25, 1964, present datum (backwater from Willamette River), minimum gage height since February 1998, -0.84 ft Sept. 21, 2003.