U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 8
Station ID: 8531804 PUBLICATION DATE: 06/20/2016
Name: SEA BRIGHT, SHREWSBURY RIVER
NJ
NOAA Chart: 12325 Latitude: 40° 21.9' N ( 40.36500)
USGS Quad: LONG BRANCH EAST Longitude: 73° 58.5' W ( -73.97500)
To reach the tide station from the Garden State Parkway, take exit 109 from the
Garden State Parkway and proceed 3.5 km (2.2 mi) east on County Road 520/Newman
Springs Road to Broad Street, turn left onto Broad Street and proceed 0.2 km
(0.14 mi) north to Pickney Road, turn right onto Pickney Road and proceed east
1.0 km (0.6 mi) to Branch Avenue, turn right onto Branch Avenue and proceed 0.5
km (0.3 mi) SE to Rumson Road, turn left onto Rumson Road and proceed 6.9 km
(4.3 mi) NE to Shrewsbury River Bridge and the tide station on the north side of
the east end of the bridge.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: 1804 D 1977
DESIGNATION: 853 1804 D TIDAL
MONUMENTATION: Tidal Station disk VM#: 2574
AGENCY: National Ocean Service IDB PID#: AI8471
SETTING CLASSIFICATION: Bridge abutment OPUS PID:
LATITUDE: 40° 21.9' N ( 40.36564) LONGITUDE: 73° 58.5' W ( -73.97461)
The primary bench mark is a disk set in the concrete bridge abutment footing,
12.16 m (39.9 ft) N of NE fence corner of dumpster area in Dunkin Donuts parking
area, 10.81 m (35.5 ft) N of NW fence corner of dumpster area, 5.94 m (19.5 ft)
W of left and right turn only traffic sign, 1.15 m (3.8 ft) NNE of angle point
of seawall S of bridge and 0.83 m (2.7 ft) SE of the SW corner of bridge
abutment.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 8
Station ID: 8531804 PUBLICATION DATE: 06/20/2016
Name: SEA BRIGHT, SHREWSBURY RIVER
NJ
NOAA Chart: 12325 Latitude: 40° 21.9' N ( 40.36500)
USGS Quad: LONG BRANCH EAST Longitude: 73° 58.5' W ( -73.97500)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: J 5 RESET 1950
DESIGNATION: J 5 RESET
MONUMENTATION: Bench Mark disk VM#: 2570
AGENCY: US Coast & Geodetic Survey IDB PID#: KU0784
SETTING CLASSIFICATION: Bridge balustrade OPUS PID:
LATITUDE: 40° 21.9' N ( 40.36581) LONGITUDE: 73° 58.5' W ( -73.97444)
The bench mark is a disk set vertically in E end of concrete bridge railing,
28.02 m (91.9 ft) E of traffic signal pole on N side of bridge E of the moveable
span, 27.69 m (90.8 ft) WSW of traffic signal pole at the NW corner of Rumson
road and ocean avenue, 10.75 m (35.3 ft) S of utility manhole in grassy area N
of Rumson road, 7.66 m (25.1 ft) NNE of the centerline of Rumson road and 2.61 m
(8.6 ft) W of light pole with W Monmouth county 520 sign and 1 m (3.3 ft) above
the sidewalk.
BENCH MARK STAMPING: 1804 C 1976
DESIGNATION: 853 1804 C TIDAL
MONUMENTATION: Tidal Station disk VM#: 12423
AGENCY: National Ocean Service IDB PID#: AI8472
SETTING CLASSIFICATION: Copper-clad steel rod without sleeve OPUS PID:
LATITUDE: 40° 21.7' N ( 40.36178) LONGITUDE: 73° 58.4' W ( -73.97386)
The bench mark is a brass disk set in a landscaped parking lot median with a
spruce tree, 23.61 m (77.5 ft) N of stop sign near Woodys restaurant on N side
of church street, 14.23 m (46.7 ft) SSW of W most post of guard rail separating
fire station to the N and police station to the S, 11.31 m (37.1 ft) SE of stop
sign and do not enter sign on police station driveway at ocean avenue, 3.03 m
(9.9 ft) NW of do not enter police vehicles only sign and 0.75 m (2.5 ft) W of
electrical box in same parking lot median. The bench mark is set 5 cm (2
inches) below grade, crimped to a steel rod driven 15.2 m (49.9 ft) in a pvc
pipe.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 8
Station ID: 8531804 PUBLICATION DATE: 06/20/2016
Name: SEA BRIGHT, SHREWSBURY RIVER
NJ
NOAA Chart: 12325 Latitude: 40° 21.9' N ( 40.36500)
USGS Quad: LONG BRANCH EAST Longitude: 73° 58.5' W ( -73.97500)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: NO 3 1934
DESIGNATION: TIDAL 3 STA 24
MONUMENTATION: Tidal Station disk VM#: 21353
AGENCY: US Coast & Geodetic Survey IDB PID#: KU0786
SETTING CLASSIFICATION: Top of a concrete monument OPUS PID:
LATITUDE: 40° 21.9' N ( 40.36425) LONGITUDE: 73° 58.7' W ( -73.97808)
The bench mark is a disk set in the top of a concrete monument in the NW corner
of the intersection of Lincoln avenue and Waterman avenue, 21.15 m (69.4 ft) E
of no parking here to corner sign on N side of Lincoln avenue W of Waterman
avenue, 15.12 m (49.6 ft) WNW of street sign on NE corner of intersection, 12.62
m (41.4 ft) N of power pole jc 301rn on SW corner of intersection, 11.15 m (36.6
ft) SSW of no parking here to corner sign on the W side of Waterman avenue N of
Lincoln avenue and 2.75 m (9.0 ft) NW of fire hydrant on NW corner of
intersection.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 8
Station ID: 8531804 PUBLICATION DATE: 06/20/2016
Name: SEA BRIGHT, SHREWSBURY RIVER
NJ
NOAA Chart: 12325 Latitude: 40° 21.9' N ( 40.36500)
USGS Quad: LONG BRANCH EAST Longitude: 73° 58.5' W ( -73.97500)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: SEA BRIGHT 1981
DESIGNATION: SEA BRIGHT
MONUMENTATION: Survey disk VM#: 21354
AGENCY: National Ocean Service IDB PID#: KU2782
SETTING CLASSIFICATION: Sidewalk OPUS PID:
LATITUDE: 40° 21.9' N ( 40.36569) LONGITUDE: 73° 58.5' W ( -73.97517)
The bench mark is a disk set in a small alcove on the S side of the bridge in
line with a metal expansion strip, 28.55 m (93.7 ft) WNW of light pole on S side
of bridge near E end of bridge, 13.39 m (43.9 ft) ESE of light pole on S side of
bridge E of drawbridge, 2.57 m (8.4 ft) SE of concrete base of swinging gate for
drawbridge and 1.09 m (3.6 ft) W of concrete bridge railing.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 8
Station ID: 8531804 PUBLICATION DATE: 06/20/2016
Name: SEA BRIGHT, SHREWSBURY RIVER
NJ
NOAA Chart: 12325 Latitude: 40° 21.9' N ( 40.36500)
USGS Quad: LONG BRANCH EAST Longitude: 73° 58.5' W ( -73.97500)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: PT 1051 1988
DESIGNATION: PT 1051
MONUMENTATION: Survey disk VM#: 21355
AGENCY: US Army Corps of Engineers IDB PID#: DG9905
SETTING CLASSIFICATION: Bridge abutment OPUS PID:
LATITUDE: 40° 22.0' N ( 40.36586) LONGITUDE: 73° 58.5' W ( -73.97517)
The bench mark is a disk set in a small alcove along the N side of the bridge
and E of the moveable span, 28.75 m (94.3 ft) W of traffic signal pole on N side
of bridge, 13.51 m (44.3 ft) E of light pole E of the E drawbridge attendant
structure, 2.54 m (8.3 ft) NE of concrete base of swinging gate for W bound
traffic over drawbridge and 1.09 m (3.6 ft) NW of the SW corner of concrete
bridge railing.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 6 of 8
Station ID: 8531804 PUBLICATION DATE: 06/20/2016
Name: SEA BRIGHT, SHREWSBURY RIVER
NJ
NOAA Chart: 12325 Latitude: 40° 21.9' N ( 40.36500)
USGS Quad: LONG BRANCH EAST Longitude: 73° 58.5' W ( -73.97500)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 01407600 A 1997
DESIGNATION: 01407600 A
MONUMENTATION: Flange-encased Rod VM#: 21356
AGENCY: National Geodetic Survey IDB PID#: AI8470
SETTING CLASSIFICATION: Stainless steel rod in sleeve OPUS PID#: AI8470
LATITUDE: 40° 21.9' N ( 40.36481) LONGITUDE: 73° 58.5' W ( -73.97469)
The bench mark is a flange encased rod set in the grassy area N of a brick
condominium complex on the W side of Ocean avenue, 20.68 m (67.8 ft) ENE of W
end of 6 ft (1.8 m) tall wooden fence on N side of nautilus condominium
building, 18.85 m (61.8 ft) ESE of W most angle point in seawall, 12.45 m (40.8
ft) SW of power pole with light at NW corner of parking area, 9.45 m (31.0 ft)
SW of storm drain catch basin in NW corner of parking area and 6.12 m (20.1 ft)
NW of tall electrical utility box on concrete pad.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 7 of 8
Station ID: 8531804 PUBLICATION DATE: 06/20/2016
Name: SEA BRIGHT, SHREWSBURY RIVER
NJ
NOAA Chart: 12325 Latitude: 40° 21.9' N ( 40.36500)
USGS Quad: LONG BRANCH EAST Longitude: 73° 58.5' W ( -73.97500)
T I D A L D A T U M S
Tidal datums at SEA BRIGHT, SHREWSBURY RIVER based on:
LENGTH OF SERIES: 4 MONTHS
TIME PERIOD: May 2015 - August 2015
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 = 1.197
MEAN HIGH WATER MHW = 1.111
North American Vertical Datum NAVD88 = 0.651
MEAN SEA LEVEL MSL = 0.578
MEAN TIDE LEVEL MTL = 0.577
MEAN LOW WATER MLW = 0.042
MEAN LOWER LOW WATER MLLW = 0.000
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
1804 D 1977 1.836 0.725
J 5 RESET 1950 4.750 3.639
1804 C 1976 2.569 1.458
NO 3 1934 3.181 2.070
SEA BRIGHT 1981 6.889 5.778
PT 1051 1988 6.888 5.777
01407600 A 1997 2.656 1.545
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 8 of 8
Station ID: 8531804 PUBLICATION DATE: 06/20/2016
Name: SEA BRIGHT, SHREWSBURY RIVER
NJ
NOAA Chart: 12325 Latitude: 40° 21.9' N ( 40.36500)
USGS Quad: LONG BRANCH EAST Longitude: 73° 58.5' W ( -73.97500)
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.