U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 5
Station ID: 8534049 PUBLICATION DATE: 07/12/2004
Name: PARKER RUN, LITTLE EGG HARBOR
NJ
NOAA Chart: 12316 Latitude: 39° 37.0' N ( 39.61670)
USGS Quad: TUCKERTON Longitude: 74° 18.6' W ( -74.31000)
To reach the tidal bench marks from the intersection of U.S. Highway 9 and Sea
Meadow Drive in Parkerton, proceed SE on Sea Meadow Drive for 1.1 km (0.7 mi) to
house #33 on the north side of the road. The bench marks are along Sea Meadow
Drive and U.S. Highway 9. The tide gage and staff were on the wooden bulkhead
behind the house at #33 Sea Meadow Drive.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: 4049 A 1976
DESIGNATION: 853 4049 A TIDAL
MONUMENTATION: Tidal Station disk VM#: 2627
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Copper clad steel rod OPUS PID#: BBDD18
LATITUDE: 39° 37.0' N ( 39.61670) LONGITUDE: 74° 18.6' W ( -74.31000)
The primary bench mark is a disk located near the SE end of Sea Meadow Drive,
20.21 m (66.3 ft) NE of wood utility pole #P 39433, 16.61 m (54.5 ft) north of
the intersection of the centerlines of the two straight sections at the angle
point of Sea Meadow Drive, 13.69 m (44.9 ft) south of the SW corner of house
#33, and 1.52 m (5.0 ft) east of the south end of a wooden fence. 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 kickblock.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 5
Station ID: 8534049 PUBLICATION DATE: 07/12/2004
Name: PARKER RUN, LITTLE EGG HARBOR
NJ
NOAA Chart: 12316 Latitude: 39° 37.0' N ( 39.61670)
USGS Quad: TUCKERTON Longitude: 74° 18.6' W ( -74.31000)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: Z 54 1961
DESIGNATION: Z 54
MONUMENTATION: Bench Mark disk VM#: 2626
AGENCY: US Coast & Geodetic Survey
(USC&GS) IDB PID#: JU0091
SETTING CLASSIFICATION: Concrete head wall OPUS PID:
LATITUDE: 39° 37.4' N ( 39.62330) LONGITUDE: 74° 19.0' W ( -74.31670)
The bench mark is a disk set in the SW end of the SE concrete head wall of a 1 m
(4 ft) box culvert under the highway and over Parker Run, 1.3 km (0.8 mi) SW
along U.S. Highway 9 from the Post Office at West Creek, 54 m (176 ft) SW of the
centerline of Brook Street, 7.16 m (23.5 ft) SE of the centerline of the
highway, and level with the highway.
BENCH MARK STAMPING: 4049 B 1976
DESIGNATION: 853 4049 B TIDAL
MONUMENTATION: Tidal Station disk VM#: 2628
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Copper clad steel rod OPUS PID:
LATITUDE: 39° 37.0' N ( 39.61670) LONGITUDE: 74° 18.6' W ( -74.31000)
The bench mark is a disk located 130 m (425 ft) NW of bench mark 4049 A 1976,
29.44 m (96.6 ft) west of the SE corner of house at 29 Sea Meadow Drive, 8.23 m
(27.0 ft) SW of the centerline of Sea Meadow Drive, and 1.71 m (5.6 ft) SW of
wood utility pole #P 35726. 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 kickblock.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 5
Station ID: 8534049 PUBLICATION DATE: 07/12/2004
Name: PARKER RUN, LITTLE EGG HARBOR
NJ
NOAA Chart: 12316 Latitude: 39° 37.0' N ( 39.61670)
USGS Quad: TUCKERTON Longitude: 74° 18.6' W ( -74.31000)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 4049 C 1976
DESIGNATION: 853 4049 C TIDAL
MONUMENTATION: Tidal Station disk VM#: 2629
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Copper clad steel rod OPUS PID:
LATITUDE: 39° 37.0' N ( 39.61670) LONGITUDE: 74° 18.6' W ( -74.31000)
The bench mark is a disk located 138 m (454 ft) NW of bench mark 4049 B 1976,
26.00 m (85.3 ft) east of wood utility pole #P 35722, 8.72 m (28.6 ft) south of
the SW corner of the house at 22 Sea Meadow Drive, and 0.64 m (2.1 ft) SW and in
line with a wood rail fence. 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 kickblock.
BENCH MARK STAMPING: 4049 D 1976
DESIGNATION: 853 4049 D TIDAL
MONUMENTATION: Tidal Station disk VM#: 2630
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Copper clad steel rod OPUS PID:
LATITUDE: 39° 37.0' N ( 39.61670) LONGITUDE: 74° 18.6' W ( -74.31000)
The bench mark is a disk located 0.3 km (0.2 mi) NW of bench mark 4049 C 1976,
38 m (125 ft) NW of the centerline of Little Field Lane, 13 m (43 ft) NW of the
NE corner of house at 4 Sea Meadow Drive, 7 m (23 ft) SW of the centerline of
Sea Meadow Drive, and 2.44 m (8.0 ft) SE of wood utility pole #P4799 T. 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 kickblock.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 5
Station ID: 8534049 PUBLICATION DATE: 07/12/2004
Name: PARKER RUN, LITTLE EGG HARBOR
NJ
NOAA Chart: 12316 Latitude: 39° 37.0' N ( 39.61670)
USGS Quad: TUCKERTON Longitude: 74° 18.6' W ( -74.31000)
T I D A L D A T U M S
Tidal datums at PARKER RUN, LITTLE EGG HARBOR based on:
LENGTH OF SERIES: 7 MONTHS
TIME PERIOD: March 1977 - September 1977
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 8557380 LEWES, FT. MILES
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
MEAN HIGHER HIGH WATER MHHW = 0.739
MEAN HIGH WATER MHW = 0.663
MEAN TIDE LEVEL MTL = 0.345
MEAN SEA LEVEL MSL = 0.344
MEAN LOW WATER MLW = 0.027
MEAN LOWER LOW WATER MLLW = 0.000
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
4049 A 1976 1.870 1.207
Z 54 1961 2.507 1.844
4049 B 1976 2.254 1.591
4049 C 1976 1.765 1.102
4049 D 1976 3.515 2.852
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 5
Station ID: 8534049 PUBLICATION DATE: 07/12/2004
Name: PARKER RUN, LITTLE EGG HARBOR
NJ
NOAA Chart: 12316 Latitude: 39° 37.0' N ( 39.61670)
USGS Quad: TUCKERTON Longitude: 74° 18.6' W ( -74.31000)
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.