U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 6
Station ID: 8725366 PUBLICATION DATE: 01/23/2004
Name: MATANZAS PASS, ESTERO ISLAND
FL
NOAA Chart: 11426 Latitude: 26° 27.4' N ( 26.45670)
USGS Quad: FORT MYERS BEACH Longitude: 81° 57.2' W ( -81.95330)
To reach the tidal bench marks from the State Highway 865 (San Carlos Boulevard)
bridge over Matanzas Pass in Fort Myers Beach, proceed SE from under the bridge
to the Anchors Away Marina. The bench marks are located at the marina, the post
office, and on the bridge. The tide gage and staff were located near the shore
end of the marina pier.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: BM NO 2 1965
DESIGNATION: 872 5366 TIDAL 2
MONUMENTATION: Tidal Station disk VM#: 7299
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: AD1372
SETTING CLASSIFICATION: Concrete sea wall OPUS PID:
LATITUDE: 26° 27.4' N ( 26.45670) LONGITUDE: 81° 57.2' W ( -81.95330)
The primary bench mark is a disk set flush in the top of the sea wall located at
Beach Marina, 15 m (50 ft) west of a curve in the sea wall, and 13 m (44 ft)
east of the east edge of the boat dock.
BENCH MARK STAMPING: 5366 D 1984
DESIGNATION: 872 5366 D TIDAL
MONUMENTATION: Tidal Station disk VM#: 7301
AGENCY: National Ocean Service (NOS) IDB PID#: AD7850
SETTING CLASSIFICATION: Bridge pier foundation OPUS PID:
LATITUDE: 26° 27.4' N ( 26.45670) LONGITUDE: 81° 57.2' W ( -81.95330)
The bench mark is a disk set in the foundation for the seventh bridge pier
located NE of the SW end of the bridge, 3 m (11 ft) NW of the steps to the
catwalk under the bridge, and 0.46 m (1.5 ft) west of the westernmost pile.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 6
Station ID: 8725366 PUBLICATION DATE: 01/23/2004
Name: MATANZAS PASS, ESTERO ISLAND
FL
NOAA Chart: 11426 Latitude: 26° 27.4' N ( 26.45670)
USGS Quad: FORT MYERS BEACH Longitude: 81° 57.2' W ( -81.95330)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 5366 E 1984
DESIGNATION: 872 5366 E TIDAL
MONUMENTATION: Tidal Station disk VM#: 7302
AGENCY: National Ocean Service (NOS) IDB PID#: AD7851
SETTING CLASSIFICATION: Loading platform OPUS PID:
LATITUDE: 26° 27.2' N ( 26.45330) LONGITUDE: 81° 57.2' W ( -81.95330)
The bench mark is a disk set in the top of the loading platform located behind
the US Post Office on the corner of 3rd and 5th streets in Fort Myers Beach, and
1 m (3 ft) SE of the north corner of the post office.
BENCH MARK STAMPING: 5366 F
DESIGNATION: 872 5366 F TIDAL
MONUMENTATION: Bench Mark disk VM#: 7303
AGENCY: Florida Department of Transportation
(FLDT) IDB PID#: AD7852
SETTING CLASSIFICATION: Bridge rail OPUS PID:
LATITUDE: 26° 27.4' N ( 26.45670) LONGITUDE: 81° 57.3' W ( -81.95500)
The bench mark is a disk set in the top of the bridge rail located over the SW
abutment of the bridge, 107 m (350 ft) NE of the SW end of the railing, and 6.25
m (20.5 ft) SE of the centerline of the bridge.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 6
Station ID: 8725366 PUBLICATION DATE: 01/23/2004
Name: MATANZAS PASS, ESTERO ISLAND
FL
NOAA Chart: 11426 Latitude: 26° 27.4' N ( 26.45670)
USGS Quad: FORT MYERS BEACH Longitude: 81° 57.2' W ( -81.95330)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 5366 G
DESIGNATION: 872 5366 G TIDAL
MONUMENTATION: Bench Mark disk VM#: 7304
AGENCY: Florida Department of Transportation
(FLDT) IDB PID#: AD7844
SETTING CLASSIFICATION: Bridge rail OPUS PID:
LATITUDE: 26° 27.5' N ( 26.45830) LONGITUDE: 81° 57.2' W ( -81.95330)
The bench mark is a disk set in the top of the bridge rail located over the NE
abutment of the bridge, 76 m (250 ft) SW of the NE end of the railing, and 6 m
(21 ft) NW of the centerline of the bridge.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 6
Station ID: 8725366 PUBLICATION DATE: 01/23/2004
Name: MATANZAS PASS, ESTERO ISLAND
FL
NOAA Chart: 11426 Latitude: 26° 27.4' N ( 26.45670)
USGS Quad: FORT MYERS BEACH Longitude: 81° 57.2' W ( -81.95330)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: F 245 RESET 1970
DESIGNATION: F 245 RESET
MONUMENTATION: Bench Mark disk VM#: 17157
AGENCY: US Coast & Geodetic Survey
(USC&GS) IDB PID#: AD5669
SETTING CLASSIFICATION: Concrete wall OPUS PID:
LATITUDE: 26° 26.8' N ( 26.44670) LONGITUDE: 81° 56.3' W ( -81.93830)
The benchmark is set flush in the SE concrete wall of the Fort Myers Beach
Library building, 11 m (35 ft) west of the main entrance of the library
building, and 0.3 m (1 ft) above the level of the sidewalk.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 6
Station ID: 8725366 PUBLICATION DATE: 01/23/2004
Name: MATANZAS PASS, ESTERO ISLAND
FL
NOAA Chart: 11426 Latitude: 26° 27.4' N ( 26.45670)
USGS Quad: FORT MYERS BEACH Longitude: 81° 57.2' W ( -81.95330)
T I D A L D A T U M S
Tidal datums at MATANZAS PASS, ESTERO ISLAND based on:
LENGTH OF SERIES: 1 MONTH
TIME PERIOD: June 1973 - June 1973
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 = 0.794
MEAN HIGH WATER MHW = 0.714
North American Vertical Datum NAVD88 = 0.665
MEAN SEA LEVEL MSL = 0.444
MEAN TIDE LEVEL MTL = 0.439
MEAN LOW WATER MLW = 0.164
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 NO 2 1965 1.358 0.644
5366 D 1984 1.387 0.673
5366 E 1984 2.450 1.736
5366 F 7.554 6.840
5366 G 7.513 6.799
F 245 RESET 1970 2.601 1.887
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 6 of 6
Station ID: 8725366 PUBLICATION DATE: 01/23/2004
Name: MATANZAS PASS, ESTERO ISLAND
FL
NOAA Chart: 11426 Latitude: 26° 27.4' N ( 26.45670)
USGS Quad: FORT MYERS BEACH Longitude: 81° 57.2' W ( -81.95330)
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.