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Bench Mark Sheet for 8530696, AMTRACK RR SWINGBRIDGE, HACKENSACK RIVER NJ

Superseded Epoch

Large map location marker Station Location
Small red map location marker Published bench mark
Small blue map location marker Unpublished bench mark

Bench mark positions only appear on the map if their coordinates in the CO-OPS database are at the precision of degrees/minutes/seconds/and tenths of seconds. If the coordinates are less precise, the mark will not appear.

Printable version

                          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.

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Products available at 8530696 AMTRACK RR SWINGBRIDGE, HACKENSACK RIVER, NJ

Revised: 08/08/2018
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services