U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 5
Station ID: 8678322 PUBLICATION DATE: 03/11/2013
Name: BAILEY CUT, SATILLA RIVER
GA
NOAA Chart: 11504 Latitude: 30° 59.1' N ( 30.98500)
USGS Quad: KINGSLAND NE Longitude: 81° 35.5' W ( -81.59170)
From the post office in Woodbine, GA, continue 0.18 km (0.1 mi) north in Bedell
Avenue to the public boat ramp, proceed by boat 21.2 km (13.2 nm) east along the
Satilla River to the entrance of Bailey Cut. The bench marks are located in the
land strip to the left of the entrance of Bailey Cut. The tide gauge is located
3.05 m (10.0 ft) offshore of the land strip.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: 8322 A 2012
DESIGNATION: 867 8322 A
MONUMENTATION: Metal Rod VM#: 20390
AGENCY: National Ocean Service (NOS) IDB PID#:
SETTING CLASSIFICATION: Stainless steel rod in sleeve OPUS PID#: BBCR21
LATITUDE: 31° 1.2' N ( 31.01978) LONGITUDE: 81° 39.0' W ( -81.65050)
The primary bench mark is a metal rod located 54.89 m (180.1 ft) NE of bench
mark 867 8322 B, 23.20 m (76.1 ft) west of the shoreline, and 2.41 m (7.9 ft)
east of the east edge of a woods. The datum point is set 15 cm ( 0.5 ft) above
the ground, being the top of a stainless steel rod driven 11 m (36 ft) to
refusal and encased in a 5-inch NOS logo cap.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 5
Station ID: 8678322 PUBLICATION DATE: 03/11/2013
Name: BAILEY CUT, SATILLA RIVER
GA
NOAA Chart: 11504 Latitude: 30° 59.1' N ( 30.98500)
USGS Quad: KINGSLAND NE Longitude: 81° 35.5' W ( -81.59170)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 8322 B 2012
DESIGNATION: 867 8322 B
MONUMENTATION: Metal Rod VM#: 20391
AGENCY: National Ocean Service (NOS) IDB PID#:
SETTING CLASSIFICATION: Stainless steel rod in sleeve OPUS PID:
LATITUDE: 31° 0.2' N ( 31.00267) LONGITUDE: 81° 39.1' W ( -81.65089)
The bench mark is a metal rod located 55.81 m (183.1 ft) NE of bench mark 876
8322 C, 54.89 m (180.1 ft) SW of bench mark 867 8322 A, 26.79 m (87.9 ft) west
of the shoreline, and 2.41 m (7.9 ft) east of the east edge of the woods. The
bench mark is set 20 cm (0.5 ft) above the ground, being the top of a stainless
steel rod driven 11.0 m (36 ft) to refusal and encased in a 5-inch NOS logo cap.
BENCH MARK STAMPING: 8322 C 2012
DESIGNATION: 867 8322 C
MONUMENTATION: Metal Rod VM#: 20392
AGENCY: National Ocean Service (NOS) IDB PID#:
SETTING CLASSIFICATION: Stainless steel rod OPUS PID:
LATITUDE: 31° 0.1' N ( 31.00231) LONGITUDE: 81° 39.1' W ( -81.65131)
The bench mark is a metal rod located 155.81 m (511.2 ft) SW of bench mark 867
8322 B, 55.50 m (182.1 ft) NE of bench mark 867 8322 D, 42.09 m (138.1 ft) west
of the shoreline, 2.41 m (7.9 ft) east of the east edge of the woods. The bench
mark is set 15 cm (0.5 ft) above the ground, being the top of a stainless steel
rod driven 11 m (36 ft) to refusal and encased in 5-inch NOS logo cap.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 5
Station ID: 8678322 PUBLICATION DATE: 03/11/2013
Name: BAILEY CUT, SATILLA RIVER
GA
NOAA Chart: 11504 Latitude: 30° 59.1' N ( 30.98500)
USGS Quad: KINGSLAND NE Longitude: 81° 35.5' W ( -81.59170)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 8322 D 2012
DESIGNATION: 867 8322 D
MONUMENTATION: Metal Rod VM#: 20393
AGENCY: National Ocean Service (NOS) IDB PID#:
SETTING CLASSIFICATION: Stainless steel rod OPUS PID:
LATITUDE: 31° 0.1' N ( 31.00200) LONGITUDE: 81° 39.1' W ( -81.65181)
The bench mark is a metal rod located 59.41 m (194.9 ft) NE of bench mark 867
8322 E, 55.50 m (182.1 ft) SW of bench mark 867 8322 C, 2.41 m (7.9 ft) SE of
the east edge of the woods. The bench mark is set 15 cm (0.5 ft) above the
ground, being the top of a stainless steel rod driven 11 m (36 ft) to refusal
and encased in a 5-inch NOS logo cap.
BENCH MARK STAMPING: 8322 E 2012
DESIGNATION: 867 8322 E
MONUMENTATION: Metal Rod VM#: 20394
AGENCY: National Ocean Service (NOS) IDB PID#:
SETTING CLASSIFICATION: Stainless steel rod OPUS PID:
LATITUDE: 31° 0.1' N ( 31.00175) LONGITUDE: 81° 39.1' W ( -81.65231)
The bench mark is a metal rod located 59.41 m (194.9 ft) WSW of bench mark 867
8322 D, 2.41 m (7.9 ft) SE of the east edge of the woods, and 2.01 m (6.6 ft)
WNW of the highwater mark along the shoreline. The bench mark is set 15 cm (0.5
ft) above the ground, being the top of a stainless steel rod driven 11 m (36 ft)
to refusal and encased in a 5-inch NOS logo cap.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 5
Station ID: 8678322 PUBLICATION DATE: 03/11/2013
Name: BAILEY CUT, SATILLA RIVER
GA
NOAA Chart: 11504 Latitude: 30° 59.1' N ( 30.98500)
USGS Quad: KINGSLAND NE Longitude: 81° 35.5' W ( -81.59170)
T I D A L D A T U M S
Tidal datums at BAILEY CUT, SATILLA RIVER based on:
LENGTH OF SERIES: 3 MONTHS
TIME PERIOD: October 2012 - December 2012
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 8720030 FERNANDINA BEACH, AMELIA RIVER
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
MEAN HIGHER HIGH WATER MHHW = 2.227
MEAN HIGH WATER MHW = 2.140
MEAN SEA LEVEL MSL = 1.197
MEAN TIDE LEVEL MTL = 1.104
MEAN LOW WATER MLW = 0.069
MEAN LOWER LOW WATER MLLW = 0.000
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
8322 A 2012 2.474 0.334
8322 B 2012 2.539 0.399
8322 C 2012 2.571 0.431
8322 D 2012 2.520 0.380
8322 E 2012 2.446 0.306
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 5
Station ID: 8678322 PUBLICATION DATE: 03/11/2013
Name: BAILEY CUT, SATILLA RIVER
GA
NOAA Chart: 11504 Latitude: 30° 59.1' N ( 30.98500)
USGS Quad: KINGSLAND NE Longitude: 81° 35.5' W ( -81.59170)
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.