U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 5
Station ID: 8530186 PUBLICATION DATE: 07/12/2004
Name: NEW MILFORD, HACKENSACK RIVER
NJ
NOAA Chart: 12363 Latitude: 40° 56.1' N ( 40.93500)
USGS Quad: HACKENSACK Longitude: 74° 1.8' W ( -74.03000)
To reach the tidal bench marks from Exit 163 of the Garden State Parkway,
proceed south on Route No. 17 to Century Road, then turn left and proceed east
on Century Road for one block, then turn right and proceed south on Spring
Valley Road for one block, then turn left and proceed east on Howland Avenue to
the T-junction, then turn left and proceed north on Kinderkamack Road (County
Route 503) to River Edge Avenue, then turn right and proceed east on River Edge
Avenue across the river, then turn right and proceed south on Columbia Street.
The bench marks are along Columbia Street and River Edge Avenue. The tide gage
and staff were on the bulkhead at the rear of the residence at No. 626 Columbia
Street.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: 0186 A 1976
DESIGNATION: 853 0186 A TIDAL
MONUMENTATION: Tidal Station disk VM#: 2425
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Copper clad steel rod OPUS PID:
LATITUDE: 40° 56.1' N ( 40.93500) LONGITUDE: 74° 1.8' W ( -74.03000)
The primary bench mark is a disk located 61 m (200 ft) south from the
intersection of Columbia Street and River Edge Avenue, 14.26 m (46.8 ft) SE of
the SE corner of the dwelling at No. 624, 8.60 m (28.2 ft) SW of utility pole #A
61517 NMB, and 3.02 m (9.9 ft) west of the west curb of Columbia Street. The
bench mark is set 6 cm (0.2 ft) below ground level, crimped to the top of a
copper-clad steel rod driven 15.2 m (50 ft), and encased in a PVC pipe and
concrete.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 5
Station ID: 8530186 PUBLICATION DATE: 07/12/2004
Name: NEW MILFORD, HACKENSACK RIVER
NJ
NOAA Chart: 12363 Latitude: 40° 56.1' N ( 40.93500)
USGS Quad: HACKENSACK Longitude: 74° 1.8' W ( -74.03000)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 0186 B 1976
DESIGNATION: 853 0186 B TIDAL
MONUMENTATION: Tidal Station disk VM#: 2426
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Concrete abutment OPUS PID:
LATITUDE: 40° 56.1' N ( 40.93500) LONGITUDE: 74° 1.8' W ( -74.03000)
The bench mark is a disk located at the NW corner of the River Edge Avenue
bridge over the Hackensack River, 4.27 m (14.0 ft) north of the north curb of
River Edge Avenue, 1.71 m (5.6 ft) SW of the outside corner of the abutment,
1.68 m (5.5 ft) NE of the NE corner of a catch basin, 1.10 m (3.6 ft) NE of
utility pole #60223 RE, and level with the road surface.
BENCH MARK STAMPING: 0186 C 1976
DESIGNATION: 853 0186 C TIDAL
MONUMENTATION: Tidal Station disk VM#: 2427
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Concrete abutment OPUS PID:
LATITUDE: 40° 56.1' N ( 40.93500) LONGITUDE: 74° 1.8' W ( -74.03000)
The bench mark is a disk set into the SE concrete abutment of the River Edge
Avenue bridge over the Hackensack River, 20.06 m (65.8 ft) east of the west end
of the bridge, 7.62 m (25.0 ft) west of utility pole #FH4FM 6000 DNMB, 2.59 m
(8.5 ft) south of the south curb of River Edge Avenue, and 0.30 m (1.0 ft) below
the sidewalk.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 5
Station ID: 8530186 PUBLICATION DATE: 07/12/2004
Name: NEW MILFORD, HACKENSACK RIVER
NJ
NOAA Chart: 12363 Latitude: 40° 56.1' N ( 40.93500)
USGS Quad: HACKENSACK Longitude: 74° 1.8' W ( -74.03000)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 0186 D 1976
DESIGNATION: 853 0186 D TIDAL
MONUMENTATION: Tidal Station disk VM#: 2428
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Copper clad steel rod OPUS PID:
LATITUDE: 40° 56.1' N ( 40.93500) LONGITUDE: 74° 1.8' W ( -74.03000)
The bench mark is a disk located on the property of the dwelling at No. 599
Columbia Street, 19.45 m (63.8 ft) SE of the SE corner of the dwelling, 18.65 m
(61.2 ft) west of utility pole #T 61061 NMB, and 3.57 m (11.7 ft) north of the
north curb of River Edge Avenue. The bench mark is set 6 cm (0.2 ft) below
ground level, crimped to the top of a copper-clad steel rod driven 15.2 m (50
ft), and encased in a PVC pipe and concrete.
BENCH MARK STAMPING: 0186 E 1976
DESIGNATION: 853 0186 E TIDAL
MONUMENTATION: Tidal Station disk VM#: 2429
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Copper clad steel rod OPUS PID:
LATITUDE: 40° 56.1' N ( 40.93500) LONGITUDE: 74° 1.8' W ( -74.03000)
The bench mark is a disk located at the NE corner of the intersection of River
Edge Avenue and Holland Avenue, 19.60 m (64.3 ft) SW of the most southerly SW
corner of the house at 104 Holland Avenue, 11.28 m (37.0 ft) south of utility
pole #P S 818 NMB, and 4.05 m (13.3 ft) east of the east curb of Holland Avenue.
The bench mark is set 6 cm (0.2 ft) below ground level, crimped to the top of a
copper-clad steel rod driven 15.2 m (50 ft), and encased in a PVC pipe and
concrete.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 5
Station ID: 8530186 PUBLICATION DATE: 07/12/2004
Name: NEW MILFORD, HACKENSACK RIVER
NJ
NOAA Chart: 12363 Latitude: 40° 56.1' N ( 40.93500)
USGS Quad: HACKENSACK Longitude: 74° 1.8' W ( -74.03000)
T I D A L D A T U M S
Tidal datums at NEW MILFORD, HACKENSACK RIVER based on:
LENGTH OF SERIES: 1 MONTH
TIME PERIOD: November 1976 - November 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 = 1.554
MEAN HIGH WATER MHW = 1.470
MEAN SEA LEVEL MSL = 0.775
MEAN TIDE LEVEL MTL = 0.745
MEAN LOW WATER MLW = 0.020
MEAN LOWER LOW WATER MLLW = 0.000
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
0186 A 1976 2.662 1.192
0186 B 1976 3.611 2.141
0186 C 1976 3.630 2.160
0186 D 1976 3.476 2.006
0186 E 1976 3.974 2.504
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 5
Station ID: 8530186 PUBLICATION DATE: 07/12/2004
Name: NEW MILFORD, HACKENSACK RIVER
NJ
NOAA Chart: 12363 Latitude: 40° 56.1' N ( 40.93500)
USGS Quad: HACKENSACK Longitude: 74° 1.8' W ( -74.03000)
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.