Superseded Bench Mark Sheet for 8729108, Panama City FL

Present Epoch

Printable version

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
Datums Page                                                        Page  1 of  7

                                                   PUBLICATION DATE:  03/19/1987
Station ID: 8729108                                SUPERCEDED DATE:   04/21/2003
Name:       PANAMA CITY, ST. ANDREW BAY                       
            FLORIDA
NOAA Chart: 11391                                  Latitude:         30°  9.1' N
USGS Quad:  PANAMA CITY                            Longitude:        85° 40.0' W


To reach the tidal bench marks from the intersection of Harrison Avenue and U.S.
Highway 98 proceed south along Harrison  Avenue and U.S. Highway 98 proceed
south along Harrison Avenue 2.0 miles (3.2 km) to the City Marina.  The bench
marks are along streets between Panama City Marina and Fourth street.  The tide
gage and staff are located at the end of Harrison Avenue at the NW corner of the
pier at Panama City Marina.


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


                 PRIMARY BENCH MARK STAMPING:  L 9108 1977

MONUMENTATION:           Survey Disk                               VM#:      778
AGENCY:                                                            PID#:  BE3028
SETTING CLASSIFICATION:  Copper-clad Steel Rod


The bench mark is on the SE side of a park on Harrison Avenue between City Hall
and Municipal Auditorium, 149 feet (45 m) WNW of the center column of the
auditorium, 54.1 feet (16.5 m) SSW of a flag pole, 16.2 feet (4.9 m) ESE of the
westernmost one of two water fountains, and on the NE side of the hedge along
the walk to the western foundation.  The bench mark is crimped to a copper-clad
steel rod driven 47 feet (14 m) to refusal, and encased in a PVC pipe projecting
0.2 foot (0.1 m) above ground level.



                         BENCH MARK STAMPING:  1 1933 20.577

MONUMENTATION:           Survey Disk                               VM#:      779
AGENCY:                                                            PID#:  BE0756
SETTING CLASSIFICATION:  Granite Step


The bench mark is set flush in the top of the west end of the bottom step of the
main entrance to the Bay Humanities Council building at Fourth Street and
Luverne Avenue, 42.5 feet (13.0 m) west of the west curb of Luverne Avenue, 35
feet (11 m) west of power pole with two transformers No. 6333342196, 18.3 feet
(5.6 m) north of the north curb of Fourth Street, and 0.5 foot (0.2 m) above the
sidewalk.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  2 of  7

                                                   PUBLICATION DATE:  03/19/1987
Station ID: 8729108                                SUPERCEDED DATE:   04/21/2003
Name:       PANAMA CITY, ST. ANDREW BAY                       
            FLORIDA
NOAA Chart: 11391                                  Latitude:         30°  9.1' N
USGS Quad:  PANAMA CITY                            Longitude:        85° 40.0' W


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


                         BENCH MARK STAMPING:  3 1933 10.833

MONUMENTATION:           Survey Disk                               VM#:      780
AGENCY:                                                            PID#:  BE0760
SETTING CLASSIFICATION:  Concrete Retaining Wall


The bench mark is set flush in the top of the concrete retaining wall on Beach
Drive near the SE end of Massalina Bayou Bridge, 0.2 mile (0.3 km) south of the
bridge, 200 feet (61 m) NNW of the intersection of Beach Drive and Second Place,
146 feet (45 m) south of the intersection of Beach Drive and Second Court, 80
feet (24 m) south of the north end of the retaining wall, 9.0 feet (2.7 m) west
of the west curb, and 0.5 foot (0.2 m) above the sidewalk.



                         BENCH MARK STAMPING:  P 42 1934

MONUMENTATION:           Survey Disk                               VM#:      781
AGENCY:                                                            PID#:  BE0757
SETTING CLASSIFICATION:  Concrete Monument


The bench mark is set flush in a concrete monument at the north corner of the
park at the intersection of Park Street and Third Court, 222 feet (68 m) NE of
the centerline of Oak Avenue, 94 feet (29m) ESE of the western corner of radio
tower WPAP, 60 feet (18 m) SW of the NE curb of Third Court, 46 feet (14 m) SE
of the centerline of Park Street, and 0.2 foot (0.1 m) above ground level.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  3 of  7

                                                   PUBLICATION DATE:  03/19/1987
Station ID: 8729108                                SUPERCEDED DATE:   04/21/2003
Name:       PANAMA CITY, ST. ANDREW BAY                       
            FLORIDA
NOAA Chart: 11391                                  Latitude:         30°  9.1' N
USGS Quad:  PANAMA CITY                            Longitude:        85° 40.0' W


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


                         BENCH MARK STAMPING:  4 1973

MONUMENTATION:           Survey Disk                               VM#:      782
AGENCY:                                                            PID#:  BE1321
SETTING CLASSIFICATION:  Concrete Bulkhead


The bench mark is set flush in the center of the corner of the 2-foot (1 m)
thick bulkhead on the east side of the municipal wharf,103 feet (31 m) ENE of
the western face of the concrete bulkhead, 37.5 feet (11.4 m) ESE of the
centerline of the north bound lane of Harrison Avenue, 10 feet (3m) SW of a
utility pole with a transformer #6316242037, 1.5 feet (0.5 m) west of the west
corner of the marina store, and 0.2 foot (0.1 m) above the sidewalk.



                         BENCH MARK STAMPING:  J 9108 1977

MONUMENTATION:           Survey Disk                               VM#:      783
AGENCY:                                                            PID#:  BE3029
SETTING CLASSIFICATION:  Concrete Abutment


The bench mark is set flush in the center of the concrete abutment of the Panama
City Marina on the SW side of the NE end of the pier, 149 feet (45 m) south of
the south corner of the tide house, 125.1 feet (38.1) SE of the NW corner of the
pier, 99.1 feet (30.2 m) west of boat stall #19, and 97.5 feet (29.7 m) WSW of a
utility pole with a transformer #6312642081.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  4 of  7

                                                   PUBLICATION DATE:  03/19/1987
Station ID: 8729108                                SUPERCEDED DATE:   04/21/2003
Name:       PANAMA CITY, ST. ANDREW BAY                       
            FLORIDA
NOAA Chart: 11391                                  Latitude:         30°  9.1' N
USGS Quad:  PANAMA CITY                            Longitude:        85° 40.0' W


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


                         BENCH MARK STAMPING:  K 9108 1977

MONUMENTATION:           Survey Disk                               VM#:      784
AGENCY:                                                            PID#:  BE3030
SETTING CLASSIFICATION:  Concrete Abutment


The bench mark is set flush in a concrete abutment on the NW side of the
intersection of Harrison Street and Panama City Marina, 142 feet (43 m) WSW of
the centerline of the main entrance of the Four Winds Restaurant, 109 feet (33
m) NE of the SW face of the seawall facing St. Andrews Bay, 13.2 feet (4.0) west
of the only fire hydrant in the area, and 8.0 feet (2.4 m) NE of the marina
bulkhead junction.



                         BENCH MARK STAMPING:  J 290

MONUMENTATION:           Survey Disk                               VM#:      785
AGENCY:                                                            PID#:  BE0759
SETTING CLASSIFICATION:  Concrete Abutment


The bench mark is set flush in the top of a 1-foot (0.3 m) thick concrete
abutment at the NW end of the East Beach Drive bridge over Massalina Bayou, 166
feet (51 m) west of the west corner of the bridge tenders building, 80 feet (24
m) WSW of a power pole with a transformer No #6333542065, 23 feet (7 m) SW of
the centerline of Beach Drive, and 2.5 feet (0.8 m) SW of the NW end of the
south handrail.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  5 of  7

                                                   PUBLICATION DATE:  03/19/1987
Station ID: 8729108                                SUPERCEDED DATE:   04/21/2003
Name:       PANAMA CITY, ST. ANDREW BAY                       
            FLORIDA
NOAA Chart: 11391                                  Latitude:         30°  9.1' N
USGS Quad:  PANAMA CITY                            Longitude:        85° 40.0' W


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


                         BENCH MARK STAMPING:  H 290

MONUMENTATION:           Survey Disk                               VM#:      786
AGENCY:                                                            PID#:  BE0758
SETTING CLASSIFICATION:  Concrete Abutment


The bench mark is set in the SE concrete abutment at the SE end of the East
Beach Drive bridge over Massalina Bayou, 21.5 feet (6.6 m) of the centerline of
East Beach Drive, 4.6 feet (1.4 m) ENE of the centerline of the sidewalk, and
2.7 feet (0.8 m) ENE of the south end of the handrail.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  6 of  7

                                                   PUBLICATION DATE:  03/19/1987
Station ID: 8729108                                SUPERCEDED DATE:   04/21/2003
Name:       PANAMA CITY, ST. ANDREW BAY                       
            FLORIDA
NOAA Chart: 11391                                  Latitude:         30°  9.1' N
USGS Quad:  PANAMA CITY                            Longitude:        85° 40.0' W


                            T I D A L   D A T U M S 


Tidal datums at PANAMA CITY, ST. ANDREW BAY based on:

     LENGTH OF SERIES:      9 YEARS
     TIME PERIOD:           1974-1976, 1978-1981, 1983-1984
     TIDAL EPOCH:           1960-1978
     CONTROL TIDE STATION:  8729840 PENSACOLA


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

     HIGHEST OBSERVED WATER LEVEL (09/23/1975)         =   5.27
     MEAN HIGHER HIGH WATER                     MHHW   =   1.37
     MEAN HIGH WATER                            MHW    =   1.29
     MEAN TIDE LEVEL                            MTL    =   0.67
   * NATIONAL GEODETIC VERTICAL DATUM           NGVD29 =   0.21
     MEAN LOW WATER                             MLW    =   0.05
     MEAN LOWER LOW WATER                       MLLW   =   0.00
     LOWEST  OBSERVED WATER LEVEL (01/18/1981)         =  -1.91

   * NGVD is based on elevations published in Quad 300853, 12/69and NOS leveling
     of 1986. 
North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In FEET above:

     Stamping or Designation                    MLLW        MHW

     L 9108 1977                                 9.78      8.49
     1 1933 20.577                              20.77     19.48
     3 1933 10.833                              11.06      9.77
     P 42 1934                                  21.24     19.95
     4 1973                                      7.54      6.25
     J 9108 1977                                 7.59      6.30
     K 9108 1977                                 7.59      6.30
     J 290                                      10.23      8.94
     H 290                                      10.48      9.19


                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  7 of  7

                                                   PUBLICATION DATE:  03/19/1987
Station ID: 8729108                                SUPERCEDED DATE:   04/21/2003
Name:       PANAMA CITY, ST. ANDREW BAY                       
            FLORIDA
NOAA Chart: 11391                                  Latitude:         30°  9.1' N
USGS Quad:  PANAMA CITY                            Longitude:        85° 40.0' 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.

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