Superseded Bench Mark Sheet for 8729084, PARKER, EAST BAY FL

Present Epoch

Printable version

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
Datums Page                                                        Page  1 of  4

                                                   PUBLICATION DATE:  01/20/1988
Station ID: 8729084                                SUPERCEDED DATE:   04/21/2003
Name:       PARKER, EAST BAY                                  
            FLORIDA
NOAA Chart: 11389                                  Latitude:         30°  7.6' N
USGS Quad:  SPRINGFIELD                            Longitude:        85° 36.7' W


To reach the tidal bench marks from the intersection of U.S. Highway 98 Business
and Pitts Avenue in Parker, proceed south along Pitts Avenue to Germaine Street,
SSW along Germaine Street to Loftin Street, and follow Loftin Street to the end.
 The bench marks are located in area between Pitts Avenue and the seawall. The
tide gage and staff were located on a free standing structure offshore, NE of
the Intracoastal waterways.


                         T I D A L   B E N C H   M A R K S


                 PRIMARY BENCH MARK STAMPING:  9084 A 1976

MONUMENTATION:           Survey Disk                               VM#:     9979
AGENCY:                                                            PID#:  BE2975
SETTING CLASSIFICATION:  Copper-clad Steel Rod


The bench mark is located 85.3 feet (26.0 m) east of the NE corner of a two
story house, 25 feet (8 m) SE of the intersection of Germaine and Loftin Street,
and 12.4 feet (3.8 m) east of Power Pole #64942.  The bench mark is 0.6 feet
(0.2 m) below ground level, crimped to a copper-clad steel rod driven 40 feet
(12 m), to refusal and encased in PVC pipe and concrete kickblock.



                         BENCH MARK STAMPING:  H 114 1945

MONUMENTATION:           Survey Disk                               VM#:     9978
AGENCY:                                                            PID#:  BE0791
SETTING CLASSIFICATION:  Concrete Monument


The bench mark is set in the top of a concrete monument, 0.6 mile (1.0 km) west
along U.S. Highway 98 from the Masonic Temple and Post Office at Parker, 195
feet (59 m) west of Amaco Service station at a junction with an oiled road
leading SE, 42 feet (13 m) north of the centerline of the highway at the middle
of curve in the highway, 1.1 feet (0.3 m) north of a steel witness post, and is
0.2 feet (0.06 m) above ground level.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  2 of  4

                                                   PUBLICATION DATE:  01/20/1988
Station ID: 8729084                                SUPERCEDED DATE:   04/21/2003
Name:       PARKER, EAST BAY                                  
            FLORIDA
NOAA Chart: 11389                                  Latitude:         30°  7.6' N
USGS Quad:  SPRINGFIELD                            Longitude:        85° 36.7' W


                         T I D A L   B E N C H   M A R K S


                         BENCH MARK STAMPING:  9084 B 1976

MONUMENTATION:           Survey Disk                               VM#:     9980
AGENCY:                                                            PID#:  BE2974
SETTING CLASSIFICATION:  Copper-clad Steel  Rod


The bench mark is located 78.5 feet (23.9 m) NE of the corner of a private
residence, next to a witness post, 23 feet (7 m) NW of the point of intersection
of Pitts Avenue and Germaine Street and 7.7 feet (2.3 m) NW of a power pole. 
The bench mark is 0.6 feet (0.2 m) below ground level, crimped to a copper-clad
steel rod driven 40 feet (12 m) to refusal and encased in PVC pipe and concrete
kickblock.



                         BENCH MARK STAMPING:  NO STAMPING 1

MONUMENTATION:           Bottle Top                                VM#:     9981
AGENCY:                                                            PID#:  BE2976
SETTING CLASSIFICATION:  Concrete Foundation


The bench mark is set in the top of a truncated concrete foundation, 39.8 feet
(12.1 m) NW of the NW corner of a private residence, and 17 feet (5 m) NW of a
concrete stairway leading down to the shoreline.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  3 of  4

                                                   PUBLICATION DATE:  01/20/1988
Station ID: 8729084                                SUPERCEDED DATE:   04/21/2003
Name:       PARKER, EAST BAY                                  
            FLORIDA
NOAA Chart: 11389                                  Latitude:         30°  7.6' N
USGS Quad:  SPRINGFIELD                            Longitude:        85° 36.7' W


                            T I D A L   D A T U M S 


Tidal datums at PARKER, EAST BAY based on:

     LENGTH OF SERIES:      1 MONTH
     TIME PERIOD:           NOVEMBER 1976
     TIDAL EPOCH:           1960-1978
     CONTROL TIDE STATION:  8729108 PANAMA CITY


Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in FEET:

     HIGHEST OBSERVED WATER LEVEL (10/25/1976)         =   2.29
     MEAN HIGHER HIGH WATER                     MHHW   =   1.44
     MEAN HIGH WATER                            MHW    =   1.36
     MEAN TIDE LEVEL                            MTL    =   0.73
     MEAN LOW WATER                             MLW    =   0.10
     MEAN LOWER LOW WATER                       MLLW   =   0.00
     LOWEST  OBSERVED WATER LEVEL (11/23/1976)         =  -1.26

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In FEET above:

     Stamping or Designation                    MLLW        MHW

     9084 A 1976                                13.39     12.03
     H 114 1945                                 21.95     20.59
     9084 B 1976                                14.92     13.56
     NO STAMPING 1                              13.40     12.04


                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  4 of  4

                                                   PUBLICATION DATE:  01/20/1988
Station ID: 8729084                                SUPERCEDED DATE:   04/21/2003
Name:       PARKER, EAST BAY                                  
            FLORIDA
NOAA Chart: 11389                                  Latitude:         30°  7.6' N
USGS Quad:  SPRINGFIELD                            Longitude:        85° 36.7' W


                             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 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.

Return to Top
Products available at 8729084 PARKER, EAST BAY, FL