next year, the USGS Pennsylvania Water Science Center will be updating
the geodetic vertical elevation (gage datum) for many locations. Click
HERE for additional information including a current list of
streamgages with upcoming datum changes. This update in gage datum does
not affect the location of the streamgage, nor the observed local gage
height or discharge recorded at the streamgage.
STATION.--01467200 DELAWARE RIVER AT PENN'S
LANDING, PHILADELPHIA, PA LOCATION.--Lat 39`56'47", long
75`08'23", Philadelphia County, Hydrologic Unit 02040202, on
right bank near River Link Ferry, approximately 2,500 ft downstream
from Ben Franklin bridge, at Penn's Landing. DRAINAGE AREA.--7,993 square miles. PERIOD OF RECORD.--August 1949 to current year. STAGE:
January 2020 to current year. VELOCITY: April 2020 to current year.
SPECIFIC CONDUCTANCE: November 1963 to current year. pH: October 1967
to current year. WATER TEMPERATURE: November 1960 to current year.
DISSOLVED OXYGEN: October 1961 to current year. CHLOROPHYLLS: January
2017 to current year. FDOM: July 2020 to current year. NITRATE: July
2020 to current year. TURBIDITY: July 2020 to current year. Prior to
May 2021, published as "Delaware River at Ben Franklin Bridge, at
Philadelphia, PA". GAGE.--Water-stage recorder, Velocity Meter, and
Water-quality monitors interfaced with a data collection platform.
Datum of gage is 0.00 ft above North American Vertical Datum of 1988
(NAVD88) from GNSS survey. COOPERATION.--Funding for the operation of this
station is provided by the Delaware River Basin Commission, City of
Philadelphia, Water Department and the U.S. Geological Survey. REMARKS.--Prior to January 2020, located at end of
Pier 12 about 150 ft upstream of Ben Franklin Bridge. Prior to July
1988, located on edge of pier 11 about 300 ft downstream of pier 12.
Further information on this station is given in U.S. Geological Survey
Water-Supply Paper 1809-0. Other interruptions in the record were due
to malfunctions of the pump or recording instrument.
This station managed by the PAWSC Downingtown Field Office.