U.S. DEPARTMENT OF COMMERCE
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National Ocean Service
Datums Page Page 1 of 5
Station ID: 8538512 PUBLICATION DATE: 05/20/2004
Name: PAULSBORO, MANTUA CREEK
NJ
NOAA Chart: 12312 Latitude: 39° 50.1' N ( 39.83500)
USGS Quad: WOODBURY Longitude: 75° 14.3' W ( -75.23830)
To reach the tidal bench marks from the intersection of State Highway 44 (East
Broad Street) and North Commerce Street in the town of Paulsboro, proceed 0.3 km
(0.2 mi) NW on North Commerce Street, then turn right and proceed east on the
road alongside the north rail of the Conrail Railroad tracks for 0.2 km (0.1 mi)
to the bridge bulkhead on the west bank of the Mantua Creek. The bench marks
are located west of the creek, along the railroad tracks. The tide gage and
staff were located on the bulkhead north of the tracks.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: 8512 B 1977
DESIGNATION: 853 8512 B
MONUMENTATION: Tidal Station disk VM#: 6044
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Galvanized steel rod OPUS PID#: DI3378
LATITUDE: 39° 50.1' N ( 39.83500) LONGITUDE: 75° 14.3' W ( -75.23830)
The primary bench mark is a disk located near the intersection of Chestnut and
Monroe Streets, 26.88 m (88.2 ft) SE of the intersection of the centerline of
Monroe and Chestnut Streets, 18 m (59 ft) SW of an abandoned concrete ice house,
15.30 m (50.2 ft) north of the NW corner of house #315, and 3.54 m (11.6 ft)
south of wood utility pole #6725. The bench mark is set 0.06 m (0.2 ft) below
ground level, crimped to the top of a galvanized steel rod driven 6.1 m (20 ft)
to refusal, and encased in a PVC pipe and concrete kickblock.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 5
Station ID: 8538512 PUBLICATION DATE: 05/20/2004
Name: PAULSBORO, MANTUA CREEK
NJ
NOAA Chart: 12312 Latitude: 39° 50.1' N ( 39.83500)
USGS Quad: WOODBURY Longitude: 75° 14.3' W ( -75.23830)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 8512 A 1977
DESIGNATION: 853 8512 A
MONUMENTATION: Tidal Station disk VM#: 6043
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Galvanized steel rod OPUS PID:
LATITUDE: 39° 50.1' N ( 39.83500) LONGITUDE: 75° 14.3' W ( -75.23830)
The bench mark is a disk located 26.43 m (86.7 ft) NW of the NW corner of the
bridgetender's office, 22.56 m (74.0 ft) north of the most southerly rail of the
tracks, 14.14 m (46.4 ft) NE of a wood utility pole, and 12.31 m (40.4 ft) south
of a 1.83 m (6.0 ft) high chainlink fence parallel to the railroad tracks. The
bench mark is set 0.06 m (0.2 ft) below ground level, crimped to the top of a
galvanized steel rod driven 4.9 m (16 ft) to refusal, and encased in a PVC pipe
and concrete kickblock.
BENCH MARK STAMPING: 8512 C 1977
DESIGNATION: 853 8512 C TIDAL
MONUMENTATION: Tidal Station disk VM#: 6045
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Galvanized steel rod OPUS PID:
LATITUDE: 39° 50.1' N ( 39.83500) LONGITUDE: 75° 14.3' W ( -75.23830)
The bench mark is a disk located on the south side of the lot at 742 Delaware
Street, adjacent to a blacktop roadway known locally as Railroad Avenue, on the
north side of the Conrail tracks, 61 m (200 ft) north of the southern rail of
the tracks, 14.63 m (48.0 ft) SW of the SW corner of the house, 6.46 m (21.2 ft)
north of the centerline of Railroad Avenue, and 4.57 m (15.0 ft) NE of wood
utility pole #11121. The bench mark is set 0.06 m (0.2 ft) below ground level,
crimped to the top of a galvanized steel rod driven 4.9 m (16 ft) to refusal,
and encased in a PVC pipe and concrete kickblock.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 5
Station ID: 8538512 PUBLICATION DATE: 05/20/2004
Name: PAULSBORO, MANTUA CREEK
NJ
NOAA Chart: 12312 Latitude: 39° 50.1' N ( 39.83500)
USGS Quad: WOODBURY Longitude: 75° 14.3' W ( -75.23830)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 9.587 M 10 1930
DESIGNATION: M 10
MONUMENTATION: Bench Mark disk VM#: 6046
AGENCY: US Coast & Geodetic Survey
(USC&GS) IDB PID#: JU0669
SETTING CLASSIFICATION: Concrete foundation OPUS PID:
LATITUDE: 39° 50.1' N ( 39.83500) LONGITUDE: 75° 14.3' W ( -75.23830)
The bench mark is a disk set flush in the NW corner of the foundation for a
railroad semaphore on the south side of Conrail tracks, 29.08 m (95.4 ft) south
of the SW corner of a 2 m (6 ft) high chain-link fence on the north side of the
tracks, 21.21 m (69.6 ft) east of the east curb of North Commerce Street, 1.95 m
(6.4 ft) south of the south rail, and 0.24 m (0.8 ft) above ground level.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 5
Station ID: 8538512 PUBLICATION DATE: 05/20/2004
Name: PAULSBORO, MANTUA CREEK
NJ
NOAA Chart: 12312 Latitude: 39° 50.1' N ( 39.83500)
USGS Quad: WOODBURY Longitude: 75° 14.3' W ( -75.23830)
T I D A L D A T U M S
Tidal datums at PAULSBORO, MANTUA CREEK based on:
LENGTH OF SERIES: 8 MONTHS
TIME PERIOD: March 1978 - October 1978
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 8545530 PHILADELPHIA (PIER 11 NORTH), DEL. RIVER
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
MEAN HIGHER HIGH WATER MHHW = 1.885
MEAN HIGH WATER MHW = 1.775
MEAN SEA LEVEL MSL = 0.994
MEAN TIDE LEVEL MTL = 0.916
MEAN LOW WATER MLW = 0.056
MEAN LOWER LOW WATER MLLW = 0.000
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
8512 B 1977 4.528 2.753
8512 A 1977 3.291 1.516
8512 C 1977 5.143 3.368
9.587 M 10 1930 3.523 1.748
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 5
Station ID: 8538512 PUBLICATION DATE: 05/20/2004
Name: PAULSBORO, MANTUA CREEK
NJ
NOAA Chart: 12312 Latitude: 39° 50.1' N ( 39.83500)
USGS Quad: WOODBURY Longitude: 75° 14.3' W ( -75.23830)
D E F I N I T I O N S
Mean Sea Level (MSL) is a tidal datum determined over a 19-year National Tidal
Datum Epoch. It pertains to local mean sea level and should not be confused
with the fixed datums of North American Vertical Datum of 1988 (NAVD88).
NAVD88 is a fixed datum derived from a simultaneous, least squares, minimum
constraint adjustment of Canadian/Mexican/United States leveling observations.
Local mean sea level observed at Father Point/Rimouski, Canada was held fixed as
the single initial constraint. NAVD88 replaces NGVD29 as the national
standard geodetic reference for heights. Bench mark elevations relative to
NAVD88 are available from NGS through the World Wide Web at
National Geodetic Survey.
NGVD29 is a fixed datum adopted as a national standard geodetic reference for
heights but is now considered superseded. NGVD29 is sometimes referred to as
Sea Level Datum of 1929 or as Mean Sea Level on some early issues of Geological
Survey Topographic Quads. NGVD29 was originally derived from a general
adjustment of the first-order leveling networks of the U.S. and Canada after
holding mean sea level observed at 26 long term tide stations as fixed.
Numerous local and wide-spread adjustments have been made since establishment in
1929. Bench mark elevations relative to NGVD29 are available from the National
Geodetic Survey (NGS) data base via the World Wide Web at
National Geodetic Survey.
NAVD88 and NGVD29 are fixed geodetic datums whose elevation relationships to
local MSL and other tidal datums may not be consistent from one location to
another.
The Vertical Mark Number (VM#) and PID# shown on the bench mark sheet are unique
identifiers for bench marks in the tidal and geodetic databases, respectively.
Each bench mark in either database has a single, unique VM# and/or PID# assigned.
Where both VM# and PID# are indicated, both tidal and geodetic elevations are
available for the bench mark listed. The NGS's Integrated Data Base (IDB PID)
provides geodetic datum based on traditionally leveled and bluebooked ties to
the National Spatial Reference System(NSRS) https://www.ngs.noaa.gov/datasheets/.
The NGS Online Positioning User Service (OPUS PID) provides geodetic datum based
on GPS position & tie it to the NSRS https://www.ngs.noaa.gov/OPUS/.
The NAVD88 elevation is shown on the Elevations of Tidal Datums Table Referred
to MLLW only when two or more of the bench marks listed have NAVD88 elevations.
The NAVD88 elevation relationship shown in the table is derived from an average
of several bench mark elevations relative to tide station datum. As a result of
this averaging, NAVD88 bench mark elevations computed indirectly from the tidal
datums elevation table may differ slightly from NAVD88 elevations listed for
each bench mark in the NGS database.