U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 4
Station ID: 8530696 PUBLICATION DATE: 05/28/2004
Name: BELLEVILLE TPKE, HACKENSACK R
NJ
NOAA Chart: 12332 Latitude: 40° 45.1' N ( 40.75170)
USGS Quad: JERSEY CITY Longitude: 74° 5.8' W ( -74.09670)
To reach the tidal bench marks from U.S. Routes 1 and 9 in Jersey City, proceed
west on the Jersey City-Newark Turnpike across the Hackensack River, then NW on
Belleville Turnpike (Rt. 506), turn right into the Diamond Shamrock Chemical
Company. The bench marks are located on the Chemical Company property and the
tide gage and staff were located on an abandoned wharf about 8 m (25 ft)
offshore.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: 0696 A 1975
DESIGNATION: 853 0696 A TIDAL
MONUMENTATION: Tidal Station disk VM#: 2475
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Bridge abutment OPUS PID:
LATITUDE: 40° 45.1' N ( 40.75170) LONGITUDE: 74° 5.8' W ( -74.09670)
The bench mark is a disk set vertically in the south face of the west abutment
of the Penn-Central Railroad bridge over the Hackensack River, 0.8 km (0.5 mi)
NE of the intersection of Newark Pike and Belleville Pike, on the west shore of
the river near Harrison, 17.6 m (57.7 ft) north of the north end of a concrete
base of a steel tower, 6.7 m (22 ft) below the railroad tracks, and 6.0 m (19.7
ft) west of the SE corner of the west abutment.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 4
Station ID: 8530696 PUBLICATION DATE: 05/28/2004
Name: BELLEVILLE TPKE, HACKENSACK R
NJ
NOAA Chart: 12332 Latitude: 40° 45.1' N ( 40.75170)
USGS Quad: JERSEY CITY Longitude: 74° 5.8' W ( -74.09670)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 0696 B 1975
DESIGNATION: 853 0696 B TIDAL
MONUMENTATION: Tidal Station disk VM#: 2476
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Abutment OPUS PID:
LATITUDE: 40° 45.1' N ( 40.75170) LONGITUDE: 74° 5.8' W ( -74.09670)
The bench mark is a disk set vertically in the west face of the east abutment of
the Penn-Central bridge over the spur line, 0.6 km (0.4 mi) east of Belleville
Pike along the railroad tracks, 122 m (400 ft) west of the west shore area of
the Hackensack River, 30.57 m (100.3 ft) SE of a concrete electric line pole,
27.07 m (88.8 ft) NE of the south end of the west abutment, 16.95 m (55.6 ft)
north of the south end of the east abutment, and 1 m (3 ft) above the ground.
BENCH MARK STAMPING: 0696 D 1976
DESIGNATION: 853 0696 D TIDAL
MONUMENTATION: Tidal Station disk VM#: 2478
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Copper clad steel rod OPUS PID:
LATITUDE: 40° 45.1' N ( 40.75170) LONGITUDE: 74° 5.8' W ( -74.09670)
The bench mark is a disk located 0.3 km (0.2 mi) east of the Belleville
Turnpike, 213 m (700 ft) south of the Penn-Central Railroad, 12.95 m (42.5 ft)
west of a manhole, 7.74 m (25.4 ft) SW of the SW corner of a one-story brick
office building of the Diamond Shamrock Chemical Company, 3.20 m (10.5 ft) SW of
the SW corner of a chainlink fence, and 2.01 m (6.6 ft) east of wood utility
pole No. 2.49K. The bench mark is set 6 cm (0.2 ft) below the ground, crimped
to the top of a copper-clad steel rod driven 15.2 m (50 ft).
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 4
Station ID: 8530696 PUBLICATION DATE: 05/28/2004
Name: BELLEVILLE TPKE, HACKENSACK R
NJ
NOAA Chart: 12332 Latitude: 40° 45.1' N ( 40.75170)
USGS Quad: JERSEY CITY Longitude: 74° 5.8' W ( -74.09670)
T I D A L D A T U M S
Tidal datums at BELLEVILLE TPKE, HACKENSACK R based on:
LENGTH OF SERIES: 10 MONTHS
TIME PERIOD: March 1976 - December 1976
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 8518750 THE BATTERY, NEW YORK HARBOR
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
MEAN HIGHER HIGH WATER MHHW = 1.767
MEAN HIGH WATER MHW = 1.678
MEAN SEA LEVEL MSL = 0.926
MEAN TIDE LEVEL MTL = 0.875
MEAN LOW WATER MLW = 0.071
MEAN LOWER LOW WATER MLLW = 0.000
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
0696 A 1975 3.884 2.206
0696 B 1975 2.179 0.501
0696 D 1976 1.937 0.259
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 4
Station ID: 8530696 PUBLICATION DATE: 05/28/2004
Name: BELLEVILLE TPKE, HACKENSACK R
NJ
NOAA Chart: 12332 Latitude: 40° 45.1' N ( 40.75170)
USGS Quad: JERSEY CITY Longitude: 74° 5.8' W ( -74.09670)
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.