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Bench Mark Sheet for 8729882, FORT PICKENS, PENSACOLA BAY FL

Superseded Epoch

Large map location marker Station Location
Small red map location marker Published bench mark
Small blue map location marker Unpublished bench mark

Bench mark positions only appear on the map if their coordinates in the CO-OPS database are at the precision of degrees/minutes/seconds/and tenths of seconds. If the coordinates are less precise, the mark will not appear.

Printable version

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
Datums Page                                                        Page  1 of  5

                                                                                
Station ID: 8729882                         PUBLICATION DATE:  01/23/2004
Name:       FORT PICKENS, PENSACOLA BAY                       
            FL
NOAA Chart: 11383                           Latitude:   30° 19.8' N (  30.33000)
USGS Quad:  FORT BARRANCAS                  Longitude:  87° 17.5' W ( -87.29170)


To reach the tidal bench marks from the intersection of State Highway C-339 and
Fort Pickens Road in Pensacola Beach, proceed WSW on Fort Pickens Road for 15.3
km (9.5 mi) to the end of the road at the fishing pier at Fort Pickens.  The
bench marks are on the massive sea wall surounding Fort Pickens.  The tide gage
and staff were located on the fishing pier.


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


                 PRIMARY BENCH MARK STAMPING:  9882 A 1977
                         DESIGNATION:          872 9882 A TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:        10293
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  BG3613
SETTING CLASSIFICATION:  Concrete sea wall                     OPUS PID#: BG3613
LATITUDE:   30° 19.8' N (  30.33000)          LONGITUDE:  87° 17.5' W ( -87.29170)


The primary bench mark is a disk set in the top of the massive concrete sea wall
along the north side of Fort Pickens, 89 m (293 ft) NNE of the park
headquarters, 7.62 m (25.0 ft) north of the centerline of the paved drive along
the sea wall, 3.66 m (12.0 ft) west of the center of the beginning of the pier,
0.79 m (2.6 ft) NW of a telephone booth on the pier and 0.3 m (1 ft) west of the
break in the sea wall at the pier.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  2 of  5

                                                                                
Station ID: 8729882                         PUBLICATION DATE:  01/23/2004
Name:       FORT PICKENS, PENSACOLA BAY                       
            FL
NOAA Chart: 11383                           Latitude:   30° 19.8' N (  30.33000)
USGS Quad:  FORT BARRANCAS                  Longitude:  87° 17.5' W ( -87.29170)


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


                         BENCH MARK STAMPING:  PAYNE 1942
                         DESIGNATION:          PAYNE

MONUMENTATION:           Triangulation Station disk            VM#:        10294
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  BG1830
SETTING CLASSIFICATION:  Sea wall                              OPUS PID:        
LATITUDE:   30° 19.7' N (  30.32830)          LONGITUDE:  87° 17.8' W ( -87.29670)


The bench mark is a disk located on the SW corner of the old Fort Pickens
seaway, 518 m (1700 ft) SW of bench mark 9882 A 1977, and 0.70 m (2.3 ft) east
of the SW corner of the concrete sea wall at Battery Payne #7.



                         BENCH MARK STAMPING:  1  1919
                         DESIGNATION:          872 9882 TIDAL 5

MONUMENTATION:           Tidal Station disk                    VM#:        10295
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  BG1832
SETTING CLASSIFICATION:  Sea wall                              OPUS PID#: BG1832
LATITUDE:   30° 19.8' N (  30.33000)          LONGITUDE:  87° 17.5' W ( -87.29170)


The bench mark is a disk set in top of the north sea wall near the Engineers
Wharf, 335 m (1100 ft) ESE of bench mark 9882 A 1977, 15 m (50 ft) west of a
narrow-gage tramway leading from the Engineers Wharf (the smaller of the two
wharves at Fort Pickens), and 0.21 m (0.7 ft) from the north edge of the wall.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  3 of  5

                                                                                
Station ID: 8729882                         PUBLICATION DATE:  01/23/2004
Name:       FORT PICKENS, PENSACOLA BAY                       
            FL
NOAA Chart: 11383                           Latitude:   30° 19.8' N (  30.33000)
USGS Quad:  FORT BARRANCAS                  Longitude:  87° 17.5' W ( -87.29170)


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


                         BENCH MARK STAMPING:  2 1919
                         DESIGNATION:          872 9882 TIDAL 6

MONUMENTATION:           Tidal Station disk                    VM#:        10296
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  BG1836
SETTING CLASSIFICATION:  Concrete sea wall                     OPUS PID#: BG1836
LATITUDE:   30° 19.8' N (  30.33000)          LONGITUDE:  87° 17.3' W ( -87.28830)


The bench mark is a disk set in top of the east concrete sea wall, directly over
a culvert, 427 m (1400 ft) ESE of bench mark 9882 A 1977, 24 m (80 ft) south of
the NE corner of the sea wall at Old Fort Pickens, and 0.21 m (0.7 ft) west of
the east edge of the sea wall.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  4 of  5

                                                                                
Station ID: 8729882                         PUBLICATION DATE:  01/23/2004
Name:       FORT PICKENS, PENSACOLA BAY                       
            FL
NOAA Chart: 11383                           Latitude:   30° 19.8' N (  30.33000)
USGS Quad:  FORT BARRANCAS                  Longitude:  87° 17.5' W ( -87.29170)


                            T I D A L   D A T U M S 


Tidal datums at FORT PICKENS, PENSACOLA BAY based on:

     LENGTH OF SERIES:      3 MONTHS
     TIME PERIOD:           March 1977 - May 1977
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  8729840 PENSACOLA, PENSACOLA BAY


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

     MEAN HIGHER HIGH WATER                     MHHW   =  0.350
     MEAN HIGH WATER                            MHW    =  0.346
     MEAN TIDE LEVEL                            MTL    =  0.177
     MEAN SEA LEVEL                             MSL    =  0.169
     North American Vertical Datum              NAVD88 =  0.077
     MEAN LOW WATER                             MLW    =  0.008
     MEAN LOWER LOW WATER                       MLLW   =  0.000

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     9882 A 1977                                 3.458    3.112
     PAYNE 1942                                  3.454    3.108
     1  1919                                     3.469    3.123
     2 1919                                      3.515    3.169


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

                                                                                
Station ID: 8729882                         PUBLICATION DATE:  01/23/2004
Name:       FORT PICKENS, PENSACOLA BAY                       
            FL
NOAA Chart: 11383                           Latitude:   30° 19.8' N (  30.33000)
USGS Quad:  FORT BARRANCAS                  Longitude:  87° 17.5' W ( -87.29170)


                             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.

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Products available at 8729882 FORT PICKENS, PENSACOLA BAY, FL

Revised: 08/08/2018
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services