USGS Water-Year Summary 2024
01484683 INDIAN RIVER BAY AT INDIAN RIVER INLET NEAR BETHANY BEACH, DE
LOCATION - Lat 38°36'35.4", long 75°04'04.8" referenced to North American Datum of 1983, Sussex County, DE, Hydrologic Unit 02040303, located at the Indian River Coast Guard Station, 0.2 mi west of State Highway 1, 0.3 mi northwest of the Indian River Inlet, and 4.9 mi north of Bethany Beach.
DRAINAGE AREA - Not determined.
SURFACE-WATER RECORDS
PERIOD OF RECORD - June 1988 to June 1989, April 1991 to December 2010, November 2011 to current year.
GAGE - Water-stage recorder. Datum of gage is 0.00 ft above North American Vertical Datum of 1988 using tidal bench mark "8690M 1980". Bench mark elevation was based on the Time Period of 1977-1986, Tidal Epoch years of 1983-2001, and Control Tide Station at Ft. Miles in Lewes, Delaware. Prior to October 1, 2014, at datum 0.78 ft higher (0.00 ft. above NGVD29, using tidal bench mark "8690M 1980").
EXTREMES FOR PERIOD OF RECORD -
Maximum elevation, 6.51 ft, NGVD29 (5.73 ft, NAVD88), Oct. 29, 2012; minimum elevation, -4.13 ft. NAVD88, Jan. 22, 2019.