U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 5
Station ID: 8539094 PUBLICATION DATE: 10/20/2020
Name: BURLINGTON, DELAWARE RIVER
NJ
NOAA Chart: 12314 Latitude: 40° 4.8' N ( 40.08000)
USGS Quad: BEVERLY Longitude: 74° 52.4' W ( -74.87333)
To reach the Burlington Bridge station from the Burlington County Public Boat
Ramp, travel by boat west (down river) for 1.6 km (1.0 mi) to the Burlington
Bridge. The station is located on the west side of the center tower bridge
abutment. Tidal bench marks are located on the bridge abutment surrounding the
tide gauge.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: 9094 F 2002
DESIGNATION: 853 9094 F
MONUMENTATION: Tidal Station disk VM#: 16798
AGENCY: National Ocean Service (NOS) IDB PID:
SETTING CLASSIFICATION: Bridge Pier OPUS PID:
LATITUDE: 40° 4.9' N ( 40.08169) LONGITUDE: 74° 52.3' W ( -74.87169)
The primary bench mark is a disk set vertically in the west face of the bridge
support, 4.58 m (15.0 ft) south of the north face of the wood cribbing, 3.41 m
(11.2 ft) north of the south face of the cribbing, 2.36 m (7.7 ft) east of the
aluminum gage shelter, and 1.17 m (3.8 ft) above the ground.
BENCH MARK STAMPING:
DESIGNATION: 853 9094 BOLT 1
MONUMENTATION: Bolt VM#: 16799
AGENCY: National Ocean Service (NOS) IDB PID:
SETTING CLASSIFICATION: Whaler Board OPUS PID:
LATITUDE: 40° 4.9' N ( 40.08169) LONGITUDE: 74° 52.3' W ( -74.87169)
The bench mark is a 1/2" lag bolt driven into the wood cribbing on the south
side of the gage shelter, 6.80 m (22.3 ft) south of the north side of the
cribbing, 3.30 m (10.8 ft) SE of the concrete bridge support, and 0.94 m (3.1
ft) south of the shelter.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 5
Station ID: 8539094 PUBLICATION DATE: 10/20/2020
Name: BURLINGTON, DELAWARE RIVER
NJ
NOAA Chart: 12314 Latitude: 40° 4.8' N ( 40.08000)
USGS Quad: BEVERLY Longitude: 74° 52.4' W ( -74.87333)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING:
DESIGNATION: 853 9094 BOLT 2
MONUMENTATION: Bolt VM#: 16800
AGENCY: National Ocean Service (NOS) IDB PID:
SETTING CLASSIFICATION: Whaler Board OPUS PID:
LATITUDE: 40° 4.9' N ( 40.08169) LONGITUDE: 74° 52.3' W ( -74.87169)
The bench mark is a 1/2" lag bolt driven into a 14" X 18" Whaler board on the
north side of the gage shelter, 6.85 m (22.5 ft) north of the south side of the
cribbing, 3.0 m (9.8 ft) NW of the concrete bridge abutment, and 1.2 m (3.9 ft)
south of the north side of the cribbing.
BENCH MARK STAMPING:
DESIGNATION: 853 9094 BOLT 3
MONUMENTATION: Bolt VM#: 16801
AGENCY: National Ocean Service (NOS) IDB PID:
SETTING CLASSIFICATION: Whaler Board OPUS PID:
LATITUDE: 40° 4.9' N ( 40.08169) LONGITUDE: 74° 52.3' W ( -74.87169)
The bench mark is a 1/2" lag bolt driven into a 14" X 18" Whaler board on the
west side of the cribbing, 1.37 m (4.5 ft) north of the south end of the
cribbing, 1.30 m (4.3 ft) south of the north edge, and 1.14 m (3.7 ft) east of
the west end of the bumper.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 5
Station ID: 8539094 PUBLICATION DATE: 10/20/2020
Name: BURLINGTON, DELAWARE RIVER
NJ
NOAA Chart: 12314 Latitude: 40° 4.8' N ( 40.08000)
USGS Quad: BEVERLY Longitude: 74° 52.4' W ( -74.87333)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING:
DESIGNATION: 853 9094 BOLT 4
MONUMENTATION: Bolt VM#: 20529
AGENCY: National Ocean Service (NOS) IDB PID:
SETTING CLASSIFICATION: Whaler Board OPUS PID:
LATITUDE: 40° 4.9' N ( 40.08172) LONGITUDE: 74° 52.2' W ( -74.86983)
The bench mark is a 1 1/2" bolt driven into a 14" x 18" whaler board on the
north side of the cribbing, 4.37 m (14.30 ft) east of the north bridge light,
1.89 m (6.20 ft) north of the bridge structure wall and 1.52 m (5.00 ft) west of
the easternmost white tie-off cleat.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 5
Station ID: 8539094 PUBLICATION DATE: 10/20/2020
Name: BURLINGTON, DELAWARE RIVER
NJ
NOAA Chart: 12314 Latitude: 40° 4.8' N ( 40.08000)
USGS Quad: BEVERLY Longitude: 74° 52.4' W ( -74.87333)
T I D A L D A T U M S
Tidal datums at BURLINGTON, DELAWARE RIVER based on:
LENGTH OF SERIES: 15 YEARS
TIME PERIOD: 1/03-12/08, 12/09-11/18
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 8545240 PHILADELPHIA (USCG STA.), DELAWARE RIVER
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
HIGHEST OBSERVED WATER LEVEL (04/17/2011) = 3.645
MEAN HIGHER HIGH WATER MHHW = 2.393
MEAN HIGH WATER MHW = 2.284
MEAN SEA LEVEL MSL = 1.217
MEAN TIDE LEVEL MTL = 1.172
MEAN LOW WATER MLW = 0.059
MEAN LOWER LOW WATER MLLW = 0.000
LOWEST OBSERVED WATER LEVEL (02/15/2015) = -1.064
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
9094 F 2002 4.598 2.314
853 9094 BOLT 1 3.353 1.069
853 9094 BOLT 2 3.318 1.034
853 9094 BOLT 3 3.381 1.097
853 9094 BOLT 4 3.549 1.265
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 5
Station ID: 8539094 PUBLICATION DATE: 10/20/2020
Name: BURLINGTON, DELAWARE RIVER
NJ
NOAA Chart: 12314 Latitude: 40° 4.8' N ( 40.08000)
USGS Quad: BEVERLY Longitude: 74° 52.4' W ( -74.87333)
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.