U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 4
Station ID: 8656394 PUBLICATION DATE: 07/14/2003
Name: NEW RIVER, JACKSONVILLE
NC
NOAA Chart: 11542 Latitude: 34° 44.7' N ( 34.74500)
USGS Quad: JACKSONVILLE SOUTH Longitude: 77° 26.2' W ( -77.43670)
To reach the tidal bench marks from the intersection of Kerr and Wantland
Streets in Jacksonville, proceed north for two blocks over the Seaboard Coastal
Line Railroad tracks to the intersection of Wantland and West Railroad Streets.
The bench marks are just west of the intersection at the city's water treatment
facilities, along West Railroad and East Railroad Streets. The tide station was
on a dock on the east side of New River just south of the railroad bridge.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: M 27 1932
DESIGNATION: M 27
MONUMENTATION: Bench Mark disk VM#: 3558
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: EA0315
SETTING CLASSIFICATION: Concrete footing OPUS PID:
LATITUDE: 34° 44.9' N ( 34.74830) LONGITUDE: 77° 26.0' W ( -77.43330)
The primary bench mark is a disk set in the top of the SW concrete leg footing
for the former city water tank at the intersection of Kerr and Wantland Streets,
58.37 m (191.5 ft) SE of the south rail of the Seaboard Coast Line Railroad
track, 26 m (84 ft) NNW of the west corner of the St. Julia Temple A.M.E. Zion
Church, 16 m (51 ft) NW of the centerline of Kerr Street, 1 m (2 ft) east of
the west corner of the footing, and 1 m (3 ft) above the ground.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 4
Station ID: 8656394 PUBLICATION DATE: 07/14/2003
Name: NEW RIVER, JACKSONVILLE
NC
NOAA Chart: 11542 Latitude: 34° 44.7' N ( 34.74500)
USGS Quad: JACKSONVILLE SOUTH Longitude: 77° 26.2' W ( -77.43670)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: NO 2 1953
DESIGNATION: 865 6394 TIDAL 2
MONUMENTATION: Tidal Station disk VM#: 3559
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: EA0316
SETTING CLASSIFICATION: Concrete footing OPUS PID:
LATITUDE: 34° 44.9' N ( 34.74830) LONGITUDE: 77° 26.0' W ( -77.43330)
The bench mark is a disk set in the SE corner of the SE concrete leg footing for
the former city water tank, 17 m (56 ft) NW of the centerline of West Railroad
Street, 9 m (30 ft) north of the NE corner of the filtration plant, 6 m (21 ft)
NE of a gate in the fence around the water tank, and 0.3 m (1.0 ft) above the
street.
BENCH MARK STAMPING: NO 4 1974
DESIGNATION: 865 6394 TIDAL 4
MONUMENTATION: Tidal Station disk VM#: 3560
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Concrete foundation OPUS PID:
LATITUDE: 34° 44.7' N ( 34.74500) LONGITUDE: 77° 26.2' W ( -77.43670)
The bench mark is a disk set in the top of an old concrete foundation near the
intersection of West Railroad and Wantland Streets, 32.64 m (107.1 ft) east of
the SE corner of the main water treatment building, 4.05 m (13.3 ft) south of
the SE corner of a fence, 3.20 m (10.5 ft) north of the north curb of West
Railroad Street, and 0.30 m (1.0 ft) above the ground.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 4
Station ID: 8656394 PUBLICATION DATE: 07/14/2003
Name: NEW RIVER, JACKSONVILLE
NC
NOAA Chart: 11542 Latitude: 34° 44.7' N ( 34.74500)
USGS Quad: JACKSONVILLE SOUTH Longitude: 77° 26.2' W ( -77.43670)
T I D A L D A T U M S
Tidal datums at NEW RIVER, JACKSONVILLE based on:
LENGTH OF SERIES: 53 HIGHS & 52 LOWS
TIME PERIOD: April 25 - May 21,1980
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 8656483 BEAUFORT, DUKE MARINE LAB
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
MEAN HIGHER HIGH WATER MHHW = 0.203
MEAN HIGH WATER MHW = 0.192
North American Vertical Datum NAVD88 = 0.132
MEAN SEA LEVEL MSL = 0.112
MEAN TIDE LEVEL MTL = 0.110
MEAN LOW WATER MLW = 0.028
MEAN LOWER LOW WATER MLLW = 0.000
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
M 27 1932 4.372 4.180
NO 2 1953 4.142 3.950
NO 4 1974 4.348 4.157
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 4
Station ID: 8656394 PUBLICATION DATE: 07/14/2003
Name: NEW RIVER, JACKSONVILLE
NC
NOAA Chart: 11542 Latitude: 34° 44.7' N ( 34.74500)
USGS Quad: JACKSONVILLE SOUTH Longitude: 77° 26.2' W ( -77.43670)
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.