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National Ocean Service
Datums Page Page 1 of 8
Station ID: 8531991 PUBLICATION DATE: 04/21/2003
Name: LONG BRANCH,FISHING PIER
NJ
NOAA Chart: 12324 Latitude: 40° 18.2' N ( 40.30330)
USGS Quad: LONG BRANCH EAST Longitude: 73° 58.6' W ( -73.97670)
To reach the tidal bench marks from the post office in Long Branch, proceed
south on Third Avenue to Chelsea Avenue, turn left on Chelsea Avenue and go east
to Ocean Avenue, turn left on Ocean Avenue and go north for 0.3 km (0.2 mi) to
Long Branch Fishing Pier. The bench marks are located in the vicinity of the
pier along Ocean Avenue, Chelsea Avenue, and Third Avenue. The tide station was
located at the end of the fishing pier.
T I D A L B E N C H M A R K S
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 8
Station ID: 8531991 PUBLICATION DATE: 04/21/2003
Name: LONG BRANCH,FISHING PIER
NJ
NOAA Chart: 12324 Latitude: 40° 18.2' N ( 40.30330)
USGS Quad: LONG BRANCH EAST Longitude: 73° 58.6' W ( -73.97670)
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: TIDAL NO 1 1948
DESIGNATION: TIDAL 1 STA 28
MONUMENTATION: Tidal Station disk VM#: 329
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: KU0805
SETTING CLASSIFICATION: Concrete step OPUS PID#: KU0805
LATITUDE: 40° 18.1' N ( 40.30170) LONGITUDE: 73° 59.0' W ( -73.98330)
The primary bench mark is a disk set in the top concrete step at the Second
Avenue entrance to Our Lady Star of the Sea church at the corner of Second and
Chelsea Avenues, 32 m (105 ft) north of the centerline of Chelsea Avenue, 10.18
m (33.4 ft) west of the centerline of Second Avenue, 6.49 m (21.3 ft) east of
the east face of the church, 0.24 m (0.8 ft) south of the north edge of the
concrete slab.
BENCH MARK STAMPING: CE 1 1930
DESIGNATION: 853 1991 TIDAL CE 1
MONUMENTATION: Tidal Station disk VM#: 330
AGENCY: US Coast & Geodetic Survey
(USC&GS) IDB PID#: KU0804
SETTING CLASSIFICATION: Granite foundation OPUS PID:
LATITUDE: 40° 18.2' N ( 40.30330) LONGITUDE: 73° 58.7' W ( -73.97830)
The bench mark is a disk set vertically in the west face of the south column of
the John A. Garfield Monument along Ocean Avenue just north of the fishing pier,
21.6 m (70.1 ft) west of the west curb of Ocean Avenue, 2.32 m (7.6 ft) west of
the east face of the monument base, 0.34 m (1.1 ft) north of the south face of
the monument base, and 0.21 m (0.7 ft) above ground.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 8
Station ID: 8531991 PUBLICATION DATE: 04/21/2003
Name: LONG BRANCH,FISHING PIER
NJ
NOAA Chart: 12324 Latitude: 40° 18.2' N ( 40.30330)
USGS Quad: LONG BRANCH EAST Longitude: 73° 58.6' W ( -73.97670)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: L5 1930 ELEV 28.228
DESIGNATION: L 5
MONUMENTATION: Tidal Station disk VM#: 331
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: KU0807
SETTING CLASSIFICATION: Building foundation OPUS PID:
LATITUDE: 40° 18.2' N ( 40.30330) LONGITUDE: 73° 59.3' W ( -73.98830)
The bench mark is a disk set vertically in the NE corner of the post office
building at the intersection of Third and Garfield Avenues, 16.00 m (52.5 ft)
north of the centerline of the entrance to the post office, 13.29 m (43.6 ft)
west of the centerline of Third Avenue, 0.24 m (0.8 ft) south of the NE corner
of the building, and 0.58 m (1.9 ft) above ground.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 8
Station ID: 8531991 PUBLICATION DATE: 04/21/2003
Name: LONG BRANCH,FISHING PIER
NJ
NOAA Chart: 12324 Latitude: 40° 18.2' N ( 40.30330)
USGS Quad: LONG BRANCH EAST Longitude: 73° 58.6' W ( -73.97670)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: TIDAL NO 2 1948
DESIGNATION: TIDAL 2 STA 28
MONUMENTATION: Tidal Station disk VM#: 332
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: KU0806
SETTING CLASSIFICATION: Flagpole foundation OPUS PID:
LATITUDE: 40° 18.1' N ( 40.30170) LONGITUDE: 73° 59.2' W ( -73.98670)
The bench mark is a disk set in the concrete flagpole base at the corner of
Third and Chelsea Avenues, 24.29 m (79.7 ft) east of the centerline of Third
Avenue, 19.99 m (65.6 ft) NNE of the centerline of Chelsea Avenue, and 8.32 m
(27.3 ft) west of the centerline of the school entrance sidewalk.
BENCH MARK STAMPING: 1991 B 1977
DESIGNATION: 853 1991 B
MONUMENTATION: Tidal Station disk VM#: 335
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Concrete walkway OPUS PID:
LATITUDE: 40° 18.2' N ( 40.30330) LONGITUDE: 73° 58.6' W ( -73.97670)
The bench mark is a disk set in the concrete walkway at the south side entrance
to the fishing pier, 7.44 m (24.4 ft) SSW of the north face of the pier
entrance, 5.97 m (19.6 ft) ESE of the west edge of the boardwalk, and 0.21 m
(0.7 ft) NNE of the south face of the pier entrance.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 8
Station ID: 8531991 PUBLICATION DATE: 04/21/2003
Name: LONG BRANCH,FISHING PIER
NJ
NOAA Chart: 12324 Latitude: 40° 18.2' N ( 40.30330)
USGS Quad: LONG BRANCH EAST Longitude: 73° 58.6' W ( -73.97670)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 1991 L 1978
DESIGNATION: 853 1991 L
MONUMENTATION: Tidal Station disk VM#: 336
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Concrete slab OPUS PID:
LATITUDE: 40° 18.2' N ( 40.30330) LONGITUDE: 73° 58.7' W ( -73.97830)
The bench mark is a disk set in a concrete slab on the west side of Ocean Avenue
just south of the John A. Garfield Monument, 81.81 m (268.4 ft) north of the
centerline of Laird Street, 33.68 m (110.5 ft) south of the SE corner the
monument, 17.28 m (56.7 ft) west of the centerline of Ocean Avenue, and 7.53 m
(24.7 ft) west of the west curb of Ocean Avenue.
BENCH MARK STAMPING: 1991 M 1979
DESIGNATION: 853 1991 M
MONUMENTATION: Tidal Station disk VM#: 337
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Concrete wall foundation OPUS PID:
LATITUDE: 40° 18.1' N ( 40.30170) LONGITUDE: 73° 58.8' W ( -73.98000)
The bench mark is a disk set in the east wall foundation of the Tideaway Manor
Restaurant on the south side of Chelsea Avenue, 18.35 m (60.2 ft) north of the
north side of the steel door entrance on the east side of the restaurant, 15.70
m (51.5 ft) south of the centerline of Chelsea Avenue, 0.15 m (0.5 ft) east of
the east wall of the building, and 0.21 m (0.7 ft) above ground.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 6 of 8
Station ID: 8531991 PUBLICATION DATE: 04/21/2003
Name: LONG BRANCH,FISHING PIER
NJ
NOAA Chart: 12324 Latitude: 40° 18.2' N ( 40.30330)
USGS Quad: LONG BRANCH EAST Longitude: 73° 58.6' W ( -73.97670)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 1991 D 1980
DESIGNATION: 853 1991 D
MONUMENTATION: Tidal Station disk VM#: 338
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Stainless steel rod OPUS PID:
LATITUDE: 40° 18.1' N ( 40.30170) LONGITUDE: 73° 59.1' W ( -73.98500)
The bench mark is a disk located at the intersection of Chelsea Avenue and
Memorial Parkway, 11.49 m (37.7 ft) north of the centerline of Chelsea Avenue,
8.56 m (28.1 ft) west of the centerline of Memorial Parkway, and 0.82 m (2.7 ft)
east of the east face of the sidewalk. The bench mark is 6 cm (0.2 ft) below
ground, crimped to a stainless steel rod driven 9.1 m (30 ft) to refusal, and
encased in a 4 inch PVC pipe with concrete kickblock.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 7 of 8
Station ID: 8531991 PUBLICATION DATE: 04/21/2003
Name: LONG BRANCH,FISHING PIER
NJ
NOAA Chart: 12324 Latitude: 40° 18.2' N ( 40.30330)
USGS Quad: LONG BRANCH EAST Longitude: 73° 58.6' W ( -73.97670)
T I D A L D A T U M S
Tidal datums at LONG BRANCH,FISHING PIER based on:
LENGTH OF SERIES: 8 Years
TIME PERIOD: January 1979 - December 1986
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 8531680 SANDY HOOK
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
HIGHEST OBSERVED WATER LEVEL (01/02/1987) = 2.479
MEAN HIGHER HIGH WATER MHHW = 1.504
MEAN HIGH WATER MHW = 1.399
North American Vertical Datum NAVD88 = 0.819
MEAN SEA LEVEL MSL = 0.744
MEAN TIDE LEVEL MTL = 0.729
MEAN LOW WATER MLW = 0.058
MEAN LOWER LOW WATER MLLW = 0.000
LOWEST OBSERVED WATER LEVEL (01/10/1978) = -1.401
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
TIDAL NO 1 1948 4.756 3.357
CE 1 1930 7.222 5.823
L5 1930 ELEV 28.228 9.052 7.653
TIDAL NO 2 1948 8.079 6.680
1991 B 1977 6.634 5.235
1991 L 1978 6.895 5.496
1991 M 1979 5.996 4.597
1991 D 1980 6.540 5.141
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 8 of 8
Station ID: 8531991 PUBLICATION DATE: 04/21/2003
Name: LONG BRANCH,FISHING PIER
NJ
NOAA Chart: 12324 Latitude: 40° 18.2' N ( 40.30330)
USGS Quad: LONG BRANCH EAST Longitude: 73° 58.6' W ( -73.97670)
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.