U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 6
Station ID: 8516663 PUBLICATION DATE: 04/29/2014
Name: LONG BEACH
NY
NOAA Chart: 12352b Latitude: 40° 35.8' N ( 40.59633)
USGS Quad: LAWRENCE Longitude: 73° 39.3' W ( -73.65508)
To reach the tidal benchmark from the intersection of Austin Boulevard and
California Place in Island Park, proceed SW on Austin Boulevard for 60 m (200
ft) to Baker Court, turn left and proceed SE on Baker Court for 74 m (240 ft) to
Pettit Place, turn right and proceed south on Pettit Place for 0.2 km (0.1 mi)
to Waterfront Boulevard, turn right and proceed west on Waterfront Boulevard for
130 m (425 ft) to the entrance of the Bridgeview Yacht club. Three benchmarks
are located in the vicinity of the Bridgeview Yacht Club and two are located 1.0
km to the NW in Shell Creek Park. The tide gauge is located in the service area
of the Bridgeview Yacht Club.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: 6663 A 2013
DESIGNATION: 851 6663 A
ALIAS:
MONUMENTATION: Bench Mark disk VM#: 20963
AGENCY: National Ocean Service IDB PID#:
SETTING CLASSIFICATION: Concrete bridge footing OPUS PID:
LATITUDE: 40° 35.8' N ( 40.59653) LONGITUDE: 73° 39.4' W ( -73.65700)
The primary bench mark is a disk set in a concrete bridge footing under the S
bound traffic deck of the Long Beach Boulevard bridge in Island Park, 36.65 m
(120.2 ft) SSE of a utility pole with three transformers, 24.05 m (78.9 ft) W of
the W most edge of the N bound traffic deck, 16.82 m (55.2 ft) WNW of the invert
of a sewer outflow pipe, 1.10 m (3.6 ft) SE of the NE corner of the NW most
concrete bridge support post, 0.80 m (2.6 ft) S of the N edge of the bridge
footing, and 1.16 m (3.8 ft) higher than the beach.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 6
Station ID: 8516663 PUBLICATION DATE: 04/29/2014
Name: LONG BEACH
NY
NOAA Chart: 12352b Latitude: 40° 35.8' N ( 40.59633)
USGS Quad: LAWRENCE Longitude: 73° 39.3' W ( -73.65508)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 6663 B 2013
DESIGNATION: 851 6663 B
MONUMENTATION: Bench Mark disk VM#: 20964
AGENCY: National Ocean Service IDB PID#:
SETTING CLASSIFICATION: Concrete mat foundation OPUS PID:
LATITUDE: 40° 35.8' N ( 40.59650) LONGITUDE: 73° 39.3' W ( -73.65517)
The bench mark is a disk set in a concrete mat foundation for a 6 m x 3 m (19.7
ft x 9.8 ft) commercial refrigeration unit in the Bridgeview Yacht Club service
area, 11.23 m (36.8 ft) SSW of the E post of the service gate, 9.32 m (30.6 ft)
E of the N casing for a door leading to the kitchen area, 8.19 m (26.9 ft) W of
the outside edge of the E facing seawall, 0.70 m (2.3 ft) SW of the NE corner of
the concrete mat, and 0.61 m (2.0 ft) ENE of the NE corner of the refrigeration
unit.
BENCH MARK STAMPING: 6663 C 2013
DESIGNATION: 851 6663 C
MONUMENTATION: Bench Mark disk VM#: 20965
AGENCY: National Ocean Service IDB PID#:
SETTING CLASSIFICATION: Concrete mat foundation OPUS PID:
LATITUDE: 40° 35.8' N ( 40.59683) LONGITUDE: 73° 39.3' W ( -73.65475)
The bench mark is a disk set in a concrete mat supporting a ferris wheel, 37.52
m (123.1 ft) W of the centerline of Pettit Place, 17.09 m (56.1 ft) SSE of an
unnumbered utility light pole, 10.13 m (33.2 ft) S of the centerline of
Waterfront Boulevard, 2.86 m (9.4 ft) ENE of the N support mast for the ferris
wheel, 0.88 m (2.9 ft) SSW of the NE corner of the concrete mat, and 0.15 m (0.5
ft) above the cobblestone sidewalk.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 6
Station ID: 8516663 PUBLICATION DATE: 04/29/2014
Name: LONG BEACH
NY
NOAA Chart: 12352b Latitude: 40° 35.8' N ( 40.59633)
USGS Quad: LAWRENCE Longitude: 73° 39.3' W ( -73.65508)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 07E03N
DESIGNATION: 07E03N
MONUMENTATION: Flange-encased Rod VM#: 20966
AGENCY: New York Department of Public Works IDB PID#: KU4719
SETTING CLASSIFICATION: Stainless steel rod with sleeve OPUS PID#: KU4719
LATITUDE: 40° 35.9' N ( 40.59911) LONGITUDE: 73° 38.7' W ( -73.64544)
The bench mark is a flange encased rod set near the SE corner of Shell Creek
Park, 50.53 m (165.8 ft) E of the end post of the right field baseball diamond
backstop fence, 33.38 m (109.5 ft) SSW of a light tower in far right field,
23.85 m (78.2 ft) NW of the center of the gazebo, 22.37 m (73.4 ft) WSW of the
seawall which faces E, and 14.31 m (46.9 ft) NW of a wooden light pole closest
to the gazebo. The datum point is set 0.14 m (0.5 ft) below ground, being the
top of a stainless steel rod driven 20.6 m (67.6 ft) in a sleeve extending to a
depth of 1.52 m (5.0 ft) and encased in an 7-inch (20 cm) NYDPW logo cap.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 6
Station ID: 8516663 PUBLICATION DATE: 04/29/2014
Name: LONG BEACH
NY
NOAA Chart: 12352b Latitude: 40° 35.8' N ( 40.59633)
USGS Quad: LAWRENCE Longitude: 73° 39.3' W ( -73.65508)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 07E03NAZ
DESIGNATION: 07E03N AZ
MONUMENTATION: Flange-encased Rod VM#: 20967
AGENCY: New York Department of Public Works IDB PID#: KU4739
SETTING CLASSIFICATION: Stainless steel rod in sleeve OPUS PID:
LATITUDE: 40° 36.1' N ( 40.60106) LONGITUDE: 73° 38.8' W ( -73.64708)
The bench mark is a flange encased rod set near the NW corner of Shell Creek
Park, 64.84 m (212.7 ft) N of the end post of the left field baseball diamond
backstop fence, 53.97 m (177.1 ft) NNE of the NE corner of the sidewalk north of
the park entrance, 33.55 m (110.1 ft) SSE of the chain link fence post at the NW
corner of the park, and 25.26 m (82.9 ft) ESE of the N pole of the gate entrance
from Traymore Avenue. The datum point is 0.10 m (0.3 ft) below grade, being the
top of a stainless steel rod driven to 17.0 m (55.8 ft) in a sleeve extending to
a depth of 1.52 m (5.0 ft) and encased in a 7-inch NYDPW logo cover.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 6
Station ID: 8516663 PUBLICATION DATE: 04/29/2014
Name: LONG BEACH
NY
NOAA Chart: 12352b Latitude: 40° 35.8' N ( 40.59633)
USGS Quad: LAWRENCE Longitude: 73° 39.3' W ( -73.65508)
T I D A L D A T U M S
Tidal datums at LONG BEACH based on:
LENGTH OF SERIES: 2 MONTHS
TIME PERIOD: January 2014 - February 2014
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 8531680 SANDY HOOK
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
MEAN HIGHER HIGH WATER MHHW = 1.495
MEAN HIGH WATER MHW = 1.404
MEAN SEA LEVEL MSL = 0.745
MEAN TIDE LEVEL MTL = 0.729
MEAN LOW WATER MLW = 0.053
MEAN LOWER LOW WATER MLLW = 0.000
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
6663 A 2013 1.814 0.410
6663 B 2013 2.236 0.832
6663 C 2013 2.474 1.070
07E03N 2.579 1.175
07E03NAZ 2.632 1.228
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 6 of 6
Station ID: 8516663 PUBLICATION DATE: 04/29/2014
Name: LONG BEACH
NY
NOAA Chart: 12352b Latitude: 40° 35.8' N ( 40.59633)
USGS Quad: LAWRENCE Longitude: 73° 39.3' W ( -73.65508)
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.