U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 7
Station ID: 8741041 PUBLICATION DATE: 03/07/2018
Name: DOCK E, PORT OF PASCAGOULA
MS
NOAA Chart: 11375 Latitude: 30° 20.9' N ( 30.34778)
USGS Quad: PASCAGOULA SOUTH Longitude: 88° 30.3' W ( -88.50583)
To reach the benchmarks from the intersection of U.S. Hwy 90 and Road 63 near
the town of Pascagoula, MS, proceed south towards "Bayou Casotte" on Road 63,
travel 4.9 km (3.05 mi) until a sign on the right side of the road states "Port
of Pascagoula EFGH Dock Terminal, bear right, and proceed 0.6 km (0.35 mi) to
the Guard Kiosk, and continue straight on entrance road, keeping Dock E to the
left. Station is located on the northeastern most section of Dock E on the
concrete bulkhead.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: 1041 C 2008
DESIGNATION: 874 1041 C
ALIAS: 874 1041 C
MONUMENTATION: Bench Mark disk VM#: 18536
AGENCY: Division of Nearshore Research (DNR) IDB PID#:
SETTING CLASSIFICATION: Concrete wharf OPUS PID:
LATITUDE: 30° 20.8' N ( 30.34622) LONGITUDE: 88° 30.2' W ( -88.50342)
The bench mark is a disk set into the top of a large concrete wharf known as
Dock F, located on the SE corner of the wharf, 16.90 m (55.4 ft) SW of a fire
hydrant and control valve "NO 5" sprinkler box, 12.20 m (40.0 ft) NNW of a
wooden power pole located in a fenced pump station, and 0.16 m (0.52 ft) east of
a bollard footing marked "F13".
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 7
Station ID: 8741041 PUBLICATION DATE: 03/07/2018
Name: DOCK E, PORT OF PASCAGOULA
MS
NOAA Chart: 11375 Latitude: 30° 20.9' N ( 30.34778)
USGS Quad: PASCAGOULA SOUTH Longitude: 88° 30.3' W ( -88.50583)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 1041 A 2008
DESIGNATION: 874 1041 A
ALIAS: 874 1041 A
MONUMENTATION: Bench Mark disk VM#: 18534
AGENCY: Division of Nearshore Research (DNR) IDB PID#:
SETTING CLASSIFICATION: Concrete wharf OPUS PID:
LATITUDE: 30° 20.8' N ( 30.34694) LONGITUDE: 88° 30.3' W ( -88.50583)
The bench mark is a disk set into the top of a large concrete wharf known as
Dock E, located near the middle of three warehouse doors facing the harbor at
Dock E, 10.80 m (35.4 ft) SE of a yellow dock bollard marked "E5", 3.20 m (10.5
ft) NW from the centerline of the middle dock door, and 0.38 m (1.25 ft) NW of
the west side of the warehouse. 2015 NOTE- THE WAREHOUSE IS BEEN DESTROYED AT
THE TIME OF THIS VISIT.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 7
Station ID: 8741041 PUBLICATION DATE: 03/07/2018
Name: DOCK E, PORT OF PASCAGOULA
MS
NOAA Chart: 11375 Latitude: 30° 20.9' N ( 30.34778)
USGS Quad: PASCAGOULA SOUTH Longitude: 88° 30.3' W ( -88.50583)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 1041 B 2008
DESIGNATION: 874 1041 B
ALIAS: 874 1041 B
MONUMENTATION: Bench Mark disk VM#: 18535
AGENCY: Division of Nearshore Research (DNR) IDB PID#:
SETTING CLASSIFICATION: Concrete wharf OPUS PID:
LATITUDE: 30° 20.8' N ( 30.34644) LONGITUDE: 88° 30.3' W ( -88.50550)
The bench mark is a disk set into the top of a large concrete wharf known as
Dock E, located on the SW corner of dock warehouse, 18.00 m (59.1 ft) NW of
bollard "F2" on the south end of dock, 16.10 m (52.8 ft) NE of a bollard marked
"E9", and 0.48 m (1.57 ft) SW from the SW corner of dock warehouse.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 7
Station ID: 8741041 PUBLICATION DATE: 03/07/2018
Name: DOCK E, PORT OF PASCAGOULA
MS
NOAA Chart: 11375 Latitude: 30° 20.9' N ( 30.34778)
USGS Quad: PASCAGOULA SOUTH Longitude: 88° 30.3' W ( -88.50583)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 1041 D 2008
DESIGNATION: 874 1041 D
ALIAS: 874 1041 D
MONUMENTATION: Bench Mark disk VM#: 18537
AGENCY: Division of Nearshore Research (DNR) IDB PID#:
SETTING CLASSIFICATION: Concrete pad OPUS PID:
LATITUDE: 30° 20.7' N ( 30.34511) LONGITUDE: 88° 30.2' W ( -88.50281)
The bench mark is a disk set into the top of a large concrete pad in between
Docks F and G, located on the SE corner of the pad, 26.10 m (85.6 ft) N of a red
fire hydrant, 22.10 m (72.5 ft) E of the centerline of an asphalt road between
Docks F and G, and 1.00 m (3.28 ft) SE of a large metal utility pole next to a
small metal building.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 7
Station ID: 8741041 PUBLICATION DATE: 03/07/2018
Name: DOCK E, PORT OF PASCAGOULA
MS
NOAA Chart: 11375 Latitude: 30° 20.9' N ( 30.34778)
USGS Quad: PASCAGOULA SOUTH Longitude: 88° 30.3' W ( -88.50583)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 1041 E 2008
DESIGNATION: 874 1041 E
ALIAS: 874 1041 E
MONUMENTATION: Bench Mark disk VM#: 18538
AGENCY: Division of Nearshore Research (DNR) IDB PID#:
SETTING CLASSIFICATION: Concrete ramp OPUS PID#: BBBG23
LATITUDE: 30° 20.7' N ( 30.34456) LONGITUDE: 88° 30.2' W ( -88.50336)
The bench mark is a disk set into the top of a concrete ramp leading to Dock G
Extension, 23.90 m (78.4 ft) NNW of the centerline of a railroad track switch,
18.90 m (62.0 ft) south of a dock bollard marked "GX12" on the NE corner of Dock
G Extension, and 10.00 m (32.8 ft) north of the centerline of the ramp leading
to Dock G Extension.
BENCH MARK STAMPING: 1041 F 2016
DESIGNATION: 874 1041 F
MONUMENTATION: Metal Rod VM#: 21919
AGENCY: National Ocean Service (NOS) IDB PID#:
SETTING CLASSIFICATION: Stainless steel rod in sleeve OPUS PID:
LATITUDE: 30° 20.9' N ( 30.34772) LONGITUDE: 88° 30.3' W ( -88.50494)
The bench mark is a stainless steel rod 87.2 m (286.1 ft) NW of high tension
utility box #T5, 34.4 m (112.9 ft) W of fire hydrant #6, 20.4 m (66.9 ft) E of
fire hydrant #97, 14.3 m (46.9 ft) N of the control valve # 13, 11.6 m (38.1 ft)
) W of the utility pole outside the Dock East property on the N side fence, 2.0
m (6.6 ft) WSW of the westernmost pole of the chain link fence gate to access
to a control valve #125 SWP Walworth 200 with the ground, 1.2 m (3.9 ft) S from
the N chain link fence 0.9 m (3.0 ft) , 0.9 m (3.0 ft) S of a orange witness
post, flush to ground, and 0.8 m (2.6 ft) NW of the utility pole with meter
number 3541274, being a metal rod driven 90.2 ft (27.5 m) to refusal and encsaed
in five inch pvc pipe. The rod has a plastic sleeve with notox grease.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 6 of 7
Station ID: 8741041 PUBLICATION DATE: 03/07/2018
Name: DOCK E, PORT OF PASCAGOULA
MS
NOAA Chart: 11375 Latitude: 30° 20.9' N ( 30.34778)
USGS Quad: PASCAGOULA SOUTH Longitude: 88° 30.3' W ( -88.50583)
T I D A L D A T U M S
Tidal datums at DOCK E, PORT OF PASCAGOULA based on:
LENGTH OF SERIES: 9 YEARS
TIME PERIOD: May 2008 - April 2017
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 8741533 PASCAGOULA NOAA LAB, PASCAGOULA RIVER
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
HIGHEST OBSERVED WATER LEVEL (10/08/2017) = 2.336
MEAN HIGHER HIGH WATER MHHW = 0.471
MEAN HIGH WATER MHW = 0.442
MEAN TIDE LEVEL MTL = 0.235
MEAN SEA LEVEL MSL = 0.231
MEAN LOW WATER MLW = 0.027
MEAN LOWER LOW WATER MLLW = 0.000
LOWEST OBSERVED WATER LEVEL (02/05/2009) = -0.558
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
1041 C 2008 3.264 2.822
1041 A 2008 3.324 2.882
1041 B 2008 3.336 2.894
1041 D 2008 3.496 3.054
1041 E 2008 3.355 2.913
1041 F 2016 2.016 1.574
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 7 of 7
Station ID: 8741041 PUBLICATION DATE: 03/07/2018
Name: DOCK E, PORT OF PASCAGOULA
MS
NOAA Chart: 11375 Latitude: 30° 20.9' N ( 30.34778)
USGS Quad: PASCAGOULA SOUTH Longitude: 88° 30.3' W ( -88.50583)
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.