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National Ocean Service
Datums Page Page 1 of 5
Station ID: 8535835 PUBLICATION DATE: 02/05/2004
Name: WILDWOOD CREST
NJ
NOAA Chart: 12318 Latitude: 38° 58.5' N ( 38.97500)
USGS Quad: WILDWOOD Longitude: 74° 49.4' W ( -74.82330)
To reach the tidal bench marks from the intersection of Atlantic Avenue and
Heather Road in Wildwood Crest, proceed SE on Heather Road for two blocks to the
Wildwood Crest Fishing Pier. The bench marks are along Heather Road and
Atlantic Avenue. The tide gage and staff were near the seaward end of the
fishing pier.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: TBM 3 1972
DESIGNATION: 853 5835 TBM 3
MONUMENTATION: Bench Mark disk VM#: 2776
AGENCY: US Coast & Geodetic Survey
(USC&GS) IDB PID#:
SETTING CLASSIFICATION: Sidewalk OPUS PID:
LATITUDE: 38° 38.5' N ( 38.64170) LONGITUDE: 74° 49.4' W ( -74.82330)
The primary bench mark is a disk set flush in concrete sidewalk near the north
entrance to a bicycle shop at the corner of Heather Road and Atlantic Avenue,
19.35 m (63.5 ft) SE of the edge of the sidewalk on the SE side of Atlantic
Avenue, 2.68 m (8.8 ft) SW of the edge of the sidewalk on the SW side of Heather
Road, and 2.29 m (7.5 ft) north of the north corner of the bicycle shop.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 5
Station ID: 8535835 PUBLICATION DATE: 02/05/2004
Name: WILDWOOD CREST
NJ
NOAA Chart: 12318 Latitude: 38° 58.5' N ( 38.97500)
USGS Quad: WILDWOOD Longitude: 74° 49.4' W ( -74.82330)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: TBM 2 1972
DESIGNATION: 853 5835 TBM 2
MONUMENTATION: Bench Mark disk VM#: 2775
AGENCY: US Coast & Geodetic Survey
(USC&GS) IDB PID#: AI9409
SETTING CLASSIFICATION: Sidewalk OPUS PID:
LATITUDE: 38° 58.6' N ( 38.97670) LONGITUDE: 74° 49.6' W ( -74.82670)
The bench mark is a disk set flush in concrete sidewalk between the north corner
of the Carousel Motel swimming pool and the west wing of the motel, 5.58 m (18.3
ft) NE of the edge of the sidewalk on the NE side of Heather Road, and 0.30 m
(1.0 ft) west of a flower planter.
BENCH MARK STAMPING: NO 1 1975
DESIGNATION: 853 5835 TIDAL 1
MONUMENTATION: Tidal Station disk VM#: 2777
AGENCY: National Ocean Survey (NOS) IDB PID#: AI9407
SETTING CLASSIFICATION: Concrete pad OPUS PID:
LATITUDE: 38° 58.6' N ( 38.97670) LONGITUDE: 74° 49.6' W ( -74.82670)
The bench mark is a disk set flush in a concrete pad between the Markay Motel
and the Ebb Tide Motel on Atlantic Avenue, 17 m (55 ft) south of the SW corner
of Markay Motel, 12 m (38 ft) east of the centerline of Atlantic Avenue, and
0.98 m (3.2 ft) north of the NW corner of Ebb Tide Motel.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 5
Station ID: 8535835 PUBLICATION DATE: 02/05/2004
Name: WILDWOOD CREST
NJ
NOAA Chart: 12318 Latitude: 38° 58.5' N ( 38.97500)
USGS Quad: WILDWOOD Longitude: 74° 49.4' W ( -74.82330)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: NO 5 1975
DESIGNATION: 853 5835 TIDAL 5
MONUMENTATION: Tidal Station disk VM#: 2778
AGENCY: National Ocean Survey (NOS) IDB PID#: AI9408
SETTING CLASSIFICATION: Concrete pad OPUS PID:
LATITUDE: 38° 58.7' N ( 38.97830) LONGITUDE: 74° 49.6' W ( -74.82670)
The bench mark is a disk set flush in a concrete pad in front of the office to
the Coral Sands Motel at the intersection of Atlantic Avenue and Lavender Road,
20 m (65 ft) north of the intersection, 10 m (33 ft) east of the centerline of
Atlantic Avenue, 5 m (16 ft) south of the SW corner of Colony Restaurant on
Atlantic Avenue, and 3 m (10 ft) west of the motel.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 5
Station ID: 8535835 PUBLICATION DATE: 02/05/2004
Name: WILDWOOD CREST
NJ
NOAA Chart: 12318 Latitude: 38° 58.5' N ( 38.97500)
USGS Quad: WILDWOOD Longitude: 74° 49.4' W ( -74.82330)
T I D A L D A T U M S
Tidal datums at WILDWOOD CREST based on:
LENGTH OF SERIES: 1 YEAR
TIME PERIOD: October 1975 - September 1976
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 8557380 LEWES, FT. MILES
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
HIGHEST OBSERVED WATER LEVEL (10/14/1977) = 2.483
MEAN HIGHER HIGH WATER MHHW = 1.502
MEAN HIGH WATER MHW = 1.368
MEAN SEA LEVEL MSL = 0.719
MEAN TIDE LEVEL MTL = 0.712
MEAN LOW WATER MLW = 0.055
MEAN LOWER LOW WATER MLLW = 0.000
LOWEST OBSERVED WATER LEVEL (03/17/1976) = -0.912
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
TBM 3 1972 3.685 2.317
TBM 2 1972 3.982 2.614
NO 1 1975 3.780 2.412
NO 5 1975 3.618 2.250
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 5
Station ID: 8535835 PUBLICATION DATE: 02/05/2004
Name: WILDWOOD CREST
NJ
NOAA Chart: 12318 Latitude: 38° 58.5' N ( 38.97500)
USGS Quad: WILDWOOD Longitude: 74° 49.4' W ( -74.82330)
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.