USGS Water-Year Summary 2023
01069700 BRANCH BROOK NEAR KENNEBUNK, ME
LOCATION - Lat 43°22'45", long 70°35'00" referenced to North American Datum of 1983, York County, ME, Hydrologic Unit 01060003, on left bank 20 ft upstream of State Route 9A highway bridge at Kennebunk-Wells town line, 2.1 mi west of Kennebunk, and 3.3 mi upstream from mouth.
DRAINAGE AREA - 10.7 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - DISCHARGE: December 2008 to current year. Annual peaks only, 1965 to 1974.
GAGE - Water-stage recorder, crest-stage gage, and modified weir plate. Datum of gage is 42.55 ft above North American Vertical Datum of 1988.
EXTREMES OUTSIDE PERIOD OF RECORD - The flood of May 13-15, 2006 reached a discharge of 1,500 ft³/s, from rating curve extended above 134 ft³/s.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 723 ft³/s, May 4, 1972, (no corresponding gage height was recorded for the period of record); minimum discharge, 1.2 ft³/s, Nov. 24, 2013, result of freeze-up; gage height, 1.47 ft.