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Bench Mark Sheet for 8726282, ANNA MARIA, CITY PIER 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Superseded Epoch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Small blue map location marker Unpublished bench mark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  7

                                                                                
Station ID: 8726282                         PUBLICATION DATE:  05/12/2011
Name:       ANNA MARIA, CITY PIER                             
            FL
NOAA Chart: 11414                           Latitude:   27° 32.0' N (  27.53330)
USGS Quad:  ANNA MARIA                      Longitude:  82° 43.8' W ( -82.73000)


To reach the tidal bench marks from the Post Office in Anna Maria, proceed NW
along Gulf Drive (C 789) for 0.5 km (0.3 mi) to Pine Avenue, then NE along Pine
Avenue for 0.8 km (0.5 mi) to Anna Maria City Fishing Pier.  The bench marks are
located along Pine Avenue.  The tide gage and staff were located on the NE
inside corner of the pier.


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


                 PRIMARY BENCH MARK STAMPING:  6282 A 1976
                         DESIGNATION:          872 6282 A TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         6196
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  AG7391
SETTING CLASSIFICATION:  Concrete catch basin                  OPUS PID#: AG7391
LATITUDE:   27° 31.9' N (  27.53170)          LONGITUDE:  82° 43.9' W ( -82.73170)


The primary bench mark is a disk set in the SE corner of a concrete drain ditch,
46 m (151 ft) SW of the centerline of Bay Boulevard, 10.21 m (33.5 ft) NE of a
35 mph speed limit sign post, 6.19 m (20.3 ft) NW of the centerline of Pine
Avenue, and 2 m (6 ft) south of the corner of a block wall.

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

                                                                                
Station ID: 8726282                         PUBLICATION DATE:  05/12/2011
Name:       ANNA MARIA, CITY PIER                             
            FL
NOAA Chart: 11414                           Latitude:   27° 32.0' N (  27.53330)
USGS Quad:  ANNA MARIA                      Longitude:  82° 43.8' W ( -82.73000)


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


                         BENCH MARK STAMPING:  R 254 1965
                         DESIGNATION:          R 254

MONUMENTATION:           Bench Mark disk                       VM#:         6194
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  AG5207
SETTING CLASSIFICATION:  Concrete walkway                      OPUS PID:        
LATITUDE:   27° 31.8' N (  27.53000)          LONGITUDE:  82° 44.1' W ( -82.73500)


The bench mark is a disk set flush in the SE corner of the bridge walkway, 0.12
m (0.4 ft) above the level of Crescent Drive.

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

                                                                                
Station ID: 8726282                         PUBLICATION DATE:  05/12/2011
Name:       ANNA MARIA, CITY PIER                             
            FL
NOAA Chart: 11414                           Latitude:   27° 32.0' N (  27.53330)
USGS Quad:  ANNA MARIA                      Longitude:  82° 43.8' W ( -82.73000)


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


                         BENCH MARK STAMPING:  S 254 1965
                         DESIGNATION:          S 254

MONUMENTATION:           Reference Mark disk                   VM#:         6195
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  AG5205
SETTING CLASSIFICATION:  Concrete walkway                      OPUS PID:        
LATITUDE:   27° 32.0' N (  27.53330)          LONGITUDE:  82° 44.0' W ( -82.73330)


The bench mark is a disk set in the top of the SE end of the SW concrete walkway
of a concrete bridge over a canal, 0.91 k (100 ft) yards NW of the SW end of the
Anna Maria City fishing pier, 3.35 m (11 ft) SW of the center line of the
Boulevard, and about level with the Boulevard.



                         BENCH MARK STAMPING:  6282 C 2002
                         DESIGNATION:          872 6282 C TIDAL

MONUMENTATION:           Flange-encased Rod                    VM#:        19899
AGENCY:                  Florida Dept. of Environmental
                         Protection (FLDEP)                    IDB PID#:  DG5816
SETTING CLASSIFICATION:  Stainless steel rod                   OPUS PID:        
LATITUDE:   27° 32.0' N (  27.53256)          LONGITUDE:  82° 43.9' W ( -82.73183)


The bench mark is a flange-encased rod located 17.53 m (57.5) ft NE of the
centerline of South Bay Boulevard, 12.80 m (42.0 ft) SE of the SW corner of the
Anna Maria City Pier, 2.23 m (7.3 ft) SE of the SE corner of a table, 0.31 m
(1.0 ft) NE of a carsonite witness post and 0.7 ft NE of the NW corner of a
wooden fence.  The bench mark is a flange-encased rod, being the top of a
stainless steel rod driven to refusal at a depth of 10.91 m (35.8) ft with a NGS
logo cap recessed 0.03 m (0.1 ft) below the level of the ground and below the
level of South Bay Boulevard, the datum point being recessed 0.03 m (0.1 ft)
below the level of the NGS logo cap.

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

                                                                                
Station ID: 8726282                         PUBLICATION DATE:  05/12/2011
Name:       ANNA MARIA, CITY PIER                             
            FL
NOAA Chart: 11414                           Latitude:   27° 32.0' N (  27.53330)
USGS Quad:  ANNA MARIA                      Longitude:  82° 43.8' W ( -82.73000)


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


                         BENCH MARK STAMPING:  6282 D 2002
                         DESIGNATION:          872 6282 D TIDAL

MONUMENTATION:           Flange-encased Rod                    VM#:        19900
AGENCY:                  Florida Dept. of Environmental
                         Protection (FLDEP)                    IDB PID#:  DG5815
SETTING CLASSIFICATION:  Stainless steel rod                   OPUS PID#: DG5815
LATITUDE:   27° 31.9' N (  27.53164)          LONGITUDE:  82° 43.8' W ( -82.73000)


The bench mark is a flange-encased rod located 11.89 m (39.0 ft) NW of power
pole number 502826658 with 1 light and 6 guy wires attached, 8.69 m (28.5 ft) NE
of the centerline of South Bay Boulevard, 5.79 m (19.0 ft) NW of the extended
centerline of Magnolia Avenue, 1.98 m (6.5 ft) west of a fire hydrant, 0.98 m
(3.2 ft) NW of the SE end of a wooden fence, 0.27 m (0.9 ft) SW of a carsonite
witness post and 0.21 m (0.7 ft) SW of a wooden fence.  The bench mark is a
flange-encased rod being the top of a stainless steel rod driven to refusal at a
depth of 11.19 m (36.7) ft with a NGS logo cap recessed 0.03 m (0.1 ft) below
the level of the ground and below the level of South Bay Boulevard, the datum
point being recessed 0.12 m (0.4 ft) below the level of the NGS logo cap.

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

                                                                                
Station ID: 8726282                         PUBLICATION DATE:  05/12/2011
Name:       ANNA MARIA, CITY PIER                             
            FL
NOAA Chart: 11414                           Latitude:   27° 32.0' N (  27.53330)
USGS Quad:  ANNA MARIA                      Longitude:  82° 43.8' W ( -82.73000)


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


                         BENCH MARK STAMPING:  6282 E 2002
                         DESIGNATION:          872 6282 E TIDAL

MONUMENTATION:           Flange-encased Rod                    VM#:        19901
AGENCY:                  Florida Dept. of Environmental
                         Protection (FLDEP)                    IDB PID#:  DG5817
SETTING CLASSIFICATION:  Stainless steel rod                   OPUS PID:        
LATITUDE:   27° 31.9' N (  27.53164)          LONGITUDE:  82° 43.8' W ( -82.73000)


The bench mark is a flange-encased rod located 48.68 m (159.7 ft) NE of the
centerline of North Shore Drive, 41.15 m (135.0 ft) SE of the extended
centerline of Poinsettia Road, 19.  11 m (62.7) ft NE of the NE corner of a
house at 901, 16.15 (53.0 ft) north of the NE corner of a house at 903, 0.67 m
(2.2 ft) SE of the NE end of a 2-foot tall concrete wall and 0.34 m (1.1 ft) NE
of a seawall.  The bench mark is a flange-encased rod, being the top of a
stainless steel rod driven to refusal at a depth of 11.34 m (37.2 ft) with a NGS
logo cap flush with the ground and about 0.30 m (1.0 ft) below the top of the
seawall, the datum point being recessed 0.91 m (0.3 ft) below the level of the
NGS logo cap.

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

                                                                                
Station ID: 8726282                         PUBLICATION DATE:  05/12/2011
Name:       ANNA MARIA, CITY PIER                             
            FL
NOAA Chart: 11414                           Latitude:   27° 32.0' N (  27.53330)
USGS Quad:  ANNA MARIA                      Longitude:  82° 43.8' W ( -82.73000)


                            T I D A L   D A T U M S 


Tidal datums at ANNA MARIA, CITY PIER based on:

     LENGTH OF SERIES:      3 MONTHS
     TIME PERIOD:           June 1976 - August 1976
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  8726520 ST. PETERSBURG, TAMPA BAY


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

     MEAN HIGHER HIGH WATER                     MHHW   =  0.660
     MEAN HIGH WATER                            MHW    =  0.582
     North American Vertical Datum              NAVD88 =  0.493
     MEAN SEA LEVEL                             MSL    =  0.355
     MEAN TIDE LEVEL                            MTL    =  0.347
     MEAN LOW WATER                             MLW    =  0.112
     MEAN LOWER LOW WATER                       MLLW   =  0.000

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     6282 A 1976                                 1.128    0.546
     R 254 1965                                  3.578    2.996
     S 254 1965                                  3.876    3.294
     6282 C 2002                                 1.256    0.674
     6282 D 2002                                 1.292    0.710
     6282 E 2002                                 0.931    0.349


Foot Notes:

Geodetic heights of the bench marks meet all NOAA/NOS/NGS quality control
standards for Second Order, Class 1 leveling.  It is advised that a confirmation
set of levels be established for bench marks 6282 C 2002, 6282 D 2002, and 6282
E 2002 to verify height differences before using tidal bench mark elevation
information.

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

                                                                                
Station ID: 8726282                         PUBLICATION DATE:  05/12/2011
Name:       ANNA MARIA, CITY PIER                             
            FL
NOAA Chart: 11414                           Latitude:   27° 32.0' N (  27.53330)
USGS Quad:  ANNA MARIA                      Longitude:  82° 43.8' W ( -82.73000)


                             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 8726282 ANNA MARIA, CITY PIER, FL

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