|
|
|
STATION.--01479000 WHITE CLAY CREEK NEAR NEWARK, DE
LOCATION.--Lat 39°41'57.2", long 75°40'30.1", New Castle County, Hydrologic Unit 02040205,
on left bank 35 ft downstream from bridge on private road at Delaware Park Race Track, 0.4 mi downstream
from the Baltimore and Ohio Railroad bridge, 1.1 mi downstream from Pike Creek, 3.8 mi east of Newark,
and 5.0 mi upstream from mouth.
DRAINAGE AREA.--89.1 mi2.
PERIOD OF RECORD.--October 1931 to September 1936, June 1943 to September 1957, October 1959 to
current year. Monthly discharge only for some periods, published in WSP 1302.
REVISED RECORDS.--WSP 1051: 1933(M). WSP 1382: 1932, 1934. WDR MD-DE-83-1: 1978-82(P).
GAGE.--Water-stage recorder. Datum of gage is 9.00 ft above National Geodetic Vertical Datum of 1929.
Nov. 17, 1931, to Sept. 30, 1936, June 4, 1943, to Sept. 30, 1957, and Oct. 1, 1959, to Apr. 7, 1976,
at site 0.5 mi upstream at datum 2.6 ft higher.
REMARKS.--Flow affected by City of Newark municipal water plant upstream from station. Slight
diurnal fluctuation at low flow caused by mills upstream from station. Records do not include a
negligible diversion upstream from station by MBNA America. U.S. Geological Survey satellite collection
platform at station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 19,500 ft3/s, Sep. 16, 1999,
gage height, 17.57 ft; maximum gage-height, 17.74 ft, June 22, 1972, at previous site and datum:
minimum discharge, 4.7 ft3/s, Sept. 11, 1966.
EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum stage known, 23 ft, previous site and datum, in July 1937
(probably affected by backwater from railroad bridge which has since been raised and widened), from information by
Baltimore & Ohio Railroad.
COOPERATION.--Funding for the operation of this station is provided by the Delaware Geological Survey,
and the U. S. Geological Survey.
CRITICAL LEVELS.--Bankfull stage; 13.5 ft, flood stage; 13.5 ft, information provided by NWS.
|
|