During winter months, cold and ice may
result in inaccurate real-time tide elevation data. Adjustments or
deletions of this data can only be done after detailed
Funding for this site is provided by:
Lat 39°23'01", long 75°21'01"
referenced to North American Datum of 1983, Greenwich Township,
Cumberland County, NJ, Hydrologic Unit 02040206, on private pier at
Greenwich Marina, 1,100 ft upstream of Pine Mount Creek, 0.7 mi
southwest of Greenwich, 4.4 mi upstream of mouth and Delaware Bay, and
6.9 mi southwest of Bridgeton.
PERIOD OF RECORD.--
Annual maximum tide, water year 1979-2001.
Unpublished fragmentary gage-height record, Oct 28, 1996 to Apr 27,
2000. Continuous-record tide gage, Apr 28, 2000 to current year.
Tide elevation, water temperature and precipitation
recorder with telemetry and tidal crest-stage gage. Datum of gage is at
0.00 ft NAVD of 1988. To determine approximate elevations to NGVD of
1929, add 1.34 ft. From October 1979 to September 2001, crest-stage
gage located at current location (Greenwich Pier) and datum of gage at
0.00 ft NGVD of 1929. From September 2001 to January 2011, tide gage
was located 0.5 mi downstream at Hancock Marina and datum of gage at
0.00 ft NAVD of 1988. Data published to NGVD of 1929 can be adjusted to
NAVD of 1988 by subtracting 1.20 ft. Online annual tidal peaks have
been adjusted to present datum.
Gage cannot measure tide elevation below approximately
-3.15 ft. Tide elevations below -3.15 ft have been estimated. Periods
of missing data are noted by dashed (---) lines.
EXTREMES FOR PERIOD OF RECORD.--
Maximum elevation, 5.99 ft,
adjusted to present datum, Oct 25, 1980; minimum elevation, estimated,
-6.9 ft, Mar 6, 2007, although a lower tide likely occurred during
period of partially missing record on Feb 17, 2007 (elevation could not
be accurately estimated).
EXTREMES OUTSIDE PERIOD OF RECORD.--
Maximum elevation known, 7.5
ft, adjusted to present datum, Nov 25, 1950, from high-water mark
reported by the U.S. Army Corps of Engineers.
National Weather Service flood stage for
this gage is 7 ft.
Rain gage data are available from this location at this link.
The water temperature data for this station
are temporary and will only be displayed for 120 days. Although the
instrumentation is calibrated at least once/year, the temporary
classification means that documented routine inspections and other
quality assurance measures are not performed that would make the data
acceptable for archival, retrieval, or future use in general scientific
or interpretive studies.