U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 5
Station ID: 8725528 PUBLICATION DATE: 03/20/2009
Name: PINE ISLAND, CHARLOTTE HARBOR
FL
NOAA Chart: 11426 Latitude: 26° 39.6' N ( 26.66000)
USGS Quad: BOKEELIA Longitude: 82° 9.3' W ( -82.15500)
To reach the tidal bench marks from the Pineland Post Office, proceed 1.0 km
(0.6 mi) NW along the paved road from the post office to the Episcopalian
Cloister. The bench marks are on the concrete sea wall and near the Cloister.
The tide gage and staff were located on the fishing pier that extends from the
concrete sea wall.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: BM 2 PINE 1959
DESIGNATION: 2 PINE
MONUMENTATION: Bench Mark disk VM#: 10616
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: AG1718
SETTING CLASSIFICATION: Concrete sea wall OPUS PID:
LATITUDE: 26° 39.7' N ( 26.66170) LONGITUDE: 82° 9.3' W ( -82.15500)
The primary bench mark is a disk set in the top of a concrete sea wall along the
west side of the lawn of the Episcopalian Cloister property, 109.73 m (360.0 ft)
west of the NW corner of the house, 96 m (315 ft) NNW along the sea wall from
the east end of the fishing pier, and 4.72 m (15.5 ft) SE of the boat cleat.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 5
Station ID: 8725528 PUBLICATION DATE: 03/20/2009
Name: PINE ISLAND, CHARLOTTE HARBOR
FL
NOAA Chart: 11426 Latitude: 26° 39.6' N ( 26.66000)
USGS Quad: BOKEELIA Longitude: 82° 9.3' W ( -82.15500)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 5528 A 1977
DESIGNATION: 872 5528 A TIDAL
MONUMENTATION: Tidal Station disk VM#: 10614
AGENCY: National Ocean Survey (NOS) IDB PID#: AG9350
SETTING CLASSIFICATION: Concrete sea wall OPUS PID:
LATITUDE: 26° 39.7' N ( 26.66170) LONGITUDE: 82° 9.3' W ( -82.15500)
The bench mark is a disk set in the top of a concrete sea wall on the property
of the Episcopalian Cloister property, 25.91 m (85.0 ft) north of bench mark
5528 B 1977, 18.59 m (61.0 ft) east of the center of two stucco buildings with
red tile roofs, and 0.37 m (1.2 ft) south of the south side of a wooden dock.
BENCH MARK STAMPING: 5528 B 1977
DESIGNATION: 872 5528 B TIDAL
MONUMENTATION: Tidal Station disk VM#: 10615
AGENCY: National Ocean Survey (NOS) IDB PID#: AG9351
SETTING CLASSIFICATION: Concrete sea wall OPUS PID:
LATITUDE: 26° 39.7' N ( 26.66170) LONGITUDE: 82° 9.3' W ( -82.15500)
The bench mark is a disk set in the top of a concrete sea wall on the property
of the Episcopalian Cloister property, 25.91 m (85.0 ft) south of bench mark
5528 A 1977, 17.53 m (57.5 ft) north of the south end of the sea wall, and 4.57
m (15.0 ft) west of the middle tree of three Austrailian pines.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 5
Station ID: 8725528 PUBLICATION DATE: 03/20/2009
Name: PINE ISLAND, CHARLOTTE HARBOR
FL
NOAA Chart: 11426 Latitude: 26° 39.6' N ( 26.66000)
USGS Quad: BOKEELIA Longitude: 82° 9.3' W ( -82.15500)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: C 240 1965
DESIGNATION: C 240
MONUMENTATION: Bench Mark disk VM#: 10617
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: AG1716
SETTING CLASSIFICATION: Copper-clad steel rod OPUS PID:
LATITUDE: 26° 39.6' N ( 26.66000) LONGITUDE: 82° 9.2' W ( -82.15330)
The bench mark is a disk located along the east edge of the property owned by
the Episcopalian Cloister property, 22.65 m (74.3 ft) north of the centerline of
the south one of two entrance driveways, 6.25 m (20.5 ft) south of the
centerline of the entrance walk, 5 m (16 ft) north of a telephone pole with one
guy wire, and 0.46 m (1.5 ft) north of a metal witness post. The bench mark is
set 0.06 m (0.2 ft) above the ground, crimped to the top of a copper-clad steel
rod driven 12.8 m (42 ft) to refusal, and encased in a 0.9 m (0.3 ft) iron pipe.
BENCH MARK STAMPING: NO 4 1965
DESIGNATION: 872 5528 TIDAL 4
MONUMENTATION: Tidal Station disk VM#: 10618
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: AG1717
SETTING CLASSIFICATION: Concrete sea wall OPUS PID:
LATITUDE: 26° 39.7' N ( 26.66170) LONGITUDE: 82° 9.3' W ( -82.15500)
The bench mark is a disk set in the top of a concrete sea wall along the west
side of the Episcopalian Cloister property, 68.58 m (225.0 ft) NW of the NW
corner of the house, 50.29 m (165.0 ft) north of the east end of the fishing
pier, and 45.72 m (150.0 ft) SE of bench mark BM 2 PINE 1959.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 5
Station ID: 8725528 PUBLICATION DATE: 03/20/2009
Name: PINE ISLAND, CHARLOTTE HARBOR
FL
NOAA Chart: 11426 Latitude: 26° 39.6' N ( 26.66000)
USGS Quad: BOKEELIA Longitude: 82° 9.3' W ( -82.15500)
T I D A L D A T U M S
Tidal datums at PINE ISLAND, CHARLOTTE HARBOR based on:
LENGTH OF SERIES: 1 YEAR
TIME PERIOD: July 1977 - June 1978
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 8725110 NAPLES, GULF OF MEXICO
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
MEAN HIGHER HIGH WATER MHHW = 0.517
North American Vertical Datum NAVD88 = 0.465
MEAN HIGH WATER MHW = 0.436
MEAN TIDE LEVEL MTL = 0.276
MEAN SEA LEVEL MSL = 0.272
MEAN LOW WATER MLW = 0.116
MEAN LOWER LOW WATER MLLW = 0.000
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
BM 2 PINE 1959 0.942 0.506
5528 A 1977 0.936 0.500
5528 B 1977 1.223 0.787
C 240 1965 1.136 0.700
NO 4 1965 0.912 0.476
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 5
Station ID: 8725528 PUBLICATION DATE: 03/20/2009
Name: PINE ISLAND, CHARLOTTE HARBOR
FL
NOAA Chart: 11426 Latitude: 26° 39.6' N ( 26.66000)
USGS Quad: BOKEELIA Longitude: 82° 9.3' W ( -82.15500)
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.