NOAA Web Site Link Tides and Currents Home Page Transparent placeholder image

Bench Mark Sheet for 8726243, ANNA MARIA OUTSIDE 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Superseded Epoch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Small blue map location marker Unpublished bench mark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: 8726243                         PUBLICATION DATE:  05/12/2011
Name:       ANNA MARIA  OUTSIDE                               
            FL
NOAA Chart: 11424                           Latitude:   27° 29.8' N (  27.49670)
USGS Quad:  BRADENTON BEACH                 Longitude:  82° 42.8' W ( -82.71330)


To reach the mark from the intersection of State Highway 64 westbound lanes
(Manatee Avenue) and U.S.  Business Highway 41 (9th Street, Tamiami Trail) in
Bradenton, go west on State Highway 64 (Manatee Avenue) for 13.7 km (8.5 mi) and
crossing three bridges to Anna Maria Island and the second traffic signal at the
junction of Gulf Drive and the vicinity of the tidal marks.


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


                 PRIMARY BENCH MARK STAMPING:  NO 2 1975
                         DESIGNATION:          872 6243 TIDAL 2

MONUMENTATION:           Bench Mark disk                       VM#:        10610
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  AG6395
SETTING CLASSIFICATION:  Curb apron                            OPUS PID:        
LATITUDE:   27° 29.8' N (  27.49670)          LONGITUDE:  82° 42.6' W ( -82.71000)


The primary bench mark is a disk set flush in the top of a concrete curb apron
near the NW corner of the building and 0.30 m (1.0 ft) above the level of the
entrance drive, 27.3 m (89.7 ft) NE of a concrete post with bench mark 82, 14.48
m (47.5 ft) west of the approximate centerline of the asphalt entrance drive,
9.0 m (29.5 ft) west of bench mark NO 3 1975, 2.5 m (8.2 ft) east of the west
edge of the concrete walkway on the west side of the building, 1.7 m (5.5 ft)
south of the north end of the rectangular curb apron, and 1.2 m (4.0 ft) north
of the NW corner of the building.

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

                                                                                
Station ID: 8726243                         PUBLICATION DATE:  05/12/2011
Name:       ANNA MARIA  OUTSIDE                               
            FL
NOAA Chart: 11424                           Latitude:   27° 29.8' N (  27.49670)
USGS Quad:  BRADENTON BEACH                 Longitude:  82° 42.8' W ( -82.71330)


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


                         BENCH MARK STAMPING:  NO 3 1975
                         DESIGNATION:          872 6243 TIDAL 3

MONUMENTATION:           Bench Mark disk                       VM#:        10611
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  AG6394
SETTING CLASSIFICATION:  Curb apron                            OPUS PID:        
LATITUDE:   27° 29.8' N (  27.49670)          LONGITUDE:  82° 42.6' W ( -82.71000)


The bench mark is a disk set flush in the top of the curb apron on the west side
of the entrance drive and 0.30 m (1.0 ft) above the drive surface, about 46.0 m
(151.0 ft) SW of bench mark NO 5 1975, 8.99 m (29.5 ft) east of bench mark NO 2
1975, 5.5 m (18.0 ft) west of the centerline of the entrance drive, and 2.7 m
(8.7 ft) NE of the NE corner of the building.



                         BENCH MARK STAMPING:  NO 5 1975
                         DESIGNATION:          872 6243 TIDAL 5

MONUMENTATION:           Bench Mark disk                       VM#:        10612
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  AG6393
SETTING CLASSIFICATION:  Copper-clad steel rod                 OPUS PID:        
LATITUDE:   27° 29.9' N (  27.49830)          LONGITUDE:  82° 42.6' W ( -82.71000)


The bench mark is a disk located about 46.0 m (151.0 ft) NE of bench mark NO 3
1975, about 45.1 m (148.00 ft) east of the approximate centerline of the asphalt
entrance drive, about 41.8 m (137.0 ft) south of the centerline of Gulf Drive on
the north end of the park, 10.1 m (33.0 ft) north of the approximate centerline
of the driveway of the dirt parking area, 0.6 m (2.0 ft) SW of the SE corner of
the chain link fence, and 0.4 m (1.2 ft) south of a carsonite witness post.  The
bench mark is crimped to the top of a copper-clad steel rod encased in a 4-inch
(10 cm) steel pipe and surrounded with concrete at the SE corner of the chain
link fence.

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

                                                                                
Station ID: 8726243                         PUBLICATION DATE:  05/12/2011
Name:       ANNA MARIA  OUTSIDE                               
            FL
NOAA Chart: 11424                           Latitude:   27° 29.8' N (  27.49670)
USGS Quad:  BRADENTON BEACH                 Longitude:  82° 42.8' W ( -82.71330)


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


                         BENCH MARK STAMPING:  82
                         DESIGNATION:          82

MONUMENTATION:           Survey disk                           VM#:        10613
AGENCY:                  Manatee County (FL-081)               IDB PID#:  AG6396
SETTING CLASSIFICATION:  Prefabricated concrete post           OPUS PID:        
LATITUDE:   27° 29.8' N (  27.49670)          LONGITUDE:  82° 42.6' W ( -82.71000)


The bench mark is a disk set in the top of a prefabricated concrete post
projecting 0.2 m (0.6 ft) above the level of the ground, 27.3 M (89.7 ft) SW of
bench mark NO 2 1975, 14.5 m (47.5 ft) west of the west edge of the building,
12.7 m (41.8 ft) east of the SE pole supporting the life guard shack, 6.3 m
(20.6 ft) west of the center of a cluster of sea grape trees, 5.9 m (19.5 ft) NW
of the NW corner of the wall around the outside dining area, and 0.2 m (0.6 ft)
south of a 0.1 m (0.4 ft) square wooden post.



                         BENCH MARK STAMPING:  6243 A 2008
                         DESIGNATION:          872 6243 A TIDAL

MONUMENTATION:           Flange-encased Rod                    VM#:        19958
AGENCY:                  Florida Department of Transportation
                         (FLDT)                                IDB PID#:  DL1836
SETTING CLASSIFICATION:  Stainless steel rod                   OPUS PID:        
LATITUDE:   27° 29.8' N (  27.49689)          LONGITUDE:  82° 42.6' W ( -82.71078)


The bench mark is a disk located about 46.0 m (151.0 ft) NE of bench mark NO 3
1975, about 45.1 m (148.00 ft) east of the approximate centerline of the asphalt
entrance drive, about 41.8 m (137.0 ft) south of the centerline of Gulf Drive on
the north end of the park, 10.1 m (33.0 ft) north of the approximate centerline
of the driveway of the dirt parking area, 0.6 m (2.0 ft) SW of the SE corner of
the 'chain link fence, and 0.4 m (1.2 ft) south of a carsonite witness post. 
The bench mark is crimped to the top of a copper-clad steel rod encased in a
4-inch (10 cm) steel pipe and surrounded with concrete at the SE corner of the
chain link fence.

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

                                                                                
Station ID: 8726243                         PUBLICATION DATE:  05/12/2011
Name:       ANNA MARIA  OUTSIDE                               
            FL
NOAA Chart: 11424                           Latitude:   27° 29.8' N (  27.49670)
USGS Quad:  BRADENTON BEACH                 Longitude:  82° 42.8' W ( -82.71330)


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


                         BENCH MARK STAMPING:  S 689
                         DESIGNATION:          S 689

MONUMENTATION:           Survey disk                           VM#:        19959
AGENCY:                  Florida Department of Transportation
                         (FLDT)                                IDB PID#:  DL1857
SETTING CLASSIFICATION:  Concrete bridge wing-wall             OPUS PID:        
LATITUDE:   27° 29.8' N (  27.49606)          LONGITUDE:  82° 41.4' W ( -82.69019)


The bench mark is a disk set flush in the top of the wing-wall, outside of the
concrete guard rail at the SW corner of the bridge and level with State Highway
64 (Manatee Avenue), 6.0 m (19.8 ft)south of the centerline of State Highway 64
(Manatee Avenue), 6.0 m (19.7 ft) west of the east end of the concrete bridge
guardrail, 1.1 m (3.5 ft) north of the approximate top center of a blue 16-inch
(41 cm) water main pipe and 0.5 m (1.6 ft) north of a carsonite witness post.

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

                                                                                
Station ID: 8726243                         PUBLICATION DATE:  05/12/2011
Name:       ANNA MARIA  OUTSIDE                               
            FL
NOAA Chart: 11424                           Latitude:   27° 29.8' N (  27.49670)
USGS Quad:  BRADENTON BEACH                 Longitude:  82° 42.8' W ( -82.71330)


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


                         BENCH MARK STAMPING:  GIS 103
                         DESIGNATION:          GIS 103

MONUMENTATION:           Flange-encased Rod                    VM#:        19960
AGENCY:                  Manatee County Florida                IDB PID#:  AG9208
SETTING CLASSIFICATION:  Aluminum rod                          OPUS PID:        
LATITUDE:   27° 29.8' N (  27.49672)          LONGITUDE:  82° 42.4' W ( -82.70742)


The bench mark is a disk is set on one three foot section of Berntsen rod
attached to six sections of Berntsen rod hammered to refusal, 0.30 m (1.0 foot)
below ground level, 0.61 m (2 feet) west of the back of median curb which lies
SW of the intersection, 10.45 m (34.3 ft) south of the center of Manatee Avenue,
and 5.88 m (19.3 ft) west of the center of East Bay Drive.  A carsonite witness
post was set 2.44 m (8.0 ft) SW of the station.

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

                                                                                
Station ID: 8726243                         PUBLICATION DATE:  05/12/2011
Name:       ANNA MARIA  OUTSIDE                               
            FL
NOAA Chart: 11424                           Latitude:   27° 29.8' N (  27.49670)
USGS Quad:  BRADENTON BEACH                 Longitude:  82° 42.8' W ( -82.71330)


                            T I D A L   D A T U M S 


Tidal datums at ANNA MARIA  OUTSIDE based on:

     LENGTH OF SERIES:      4 MONTHS
     TIME PERIOD:           July 1990 - October 1990
     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   =  0.687
     MEAN HIGH WATER                            MHW    =  0.596
     North American Vertical Datum              NAVD88 =  0.494
     MEAN SEA LEVEL                             MSL    =  0.363
     MEAN TIDE LEVEL                            MTL    =  0.356
     MEAN LOW WATER                             MLW    =  0.116
     MEAN LOWER LOW WATER                       MLLW   =  0.000

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     NO 2 1975                                   2.711    2.115
     NO 3 1975                                   2.787    2.191
     NO 5 1975                                   2.453    1.857
     82                                          2.672    2.076
     6243 A 2008                                 1.556    0.960
     S 689                                       4.789    4.193
     GIS 103                                     1.794    1.198


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 6243 A 2008, GIS 103, and S 689 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: 8726243                         PUBLICATION DATE:  05/12/2011
Name:       ANNA MARIA  OUTSIDE                               
            FL
NOAA Chart: 11424                           Latitude:   27° 29.8' N (  27.49670)
USGS Quad:  BRADENTON BEACH                 Longitude:  82° 42.8' W ( -82.71330)


                             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.

Return to Top
Products available at 8726243 ANNA MARIA OUTSIDE, FL

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