Bench Mark Sheet for 8726249, PALMA SOLA BAY NORTH 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Superseded Epoch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Small blue map location marker Unpublished bench mark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: 8726249                         PUBLICATION DATE:  02/05/2004
Name:       PALMA SOLA BAY NORTH                              
            FL
NOAA Chart: 11414                           Latitude:   27° 30.2' N (  27.50330)
USGS Quad:  ANNA MARIA                      Longitude:  82° 38.9' W ( -82.64830)


To reach the tidal bench marks from the post office in Bradenton, proceed  west
on Highway 64 (Manatee Avenue West) for 6 km (4 mi) to 75th Street NW, then turn
right and proceed north on 75th Street for 1.1 km (0.7 mi) to 9th Avenue NW,
then turn left and proceed west on 9th Avenue NW for 1.0 km (0.6 mi) to 8603 9th
Avenue NW.  The bench marks are located in the area around the residence.  The
tide gage and staff were located on a privately owned pier, behind the
residence.


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


                 PRIMARY BENCH MARK STAMPING:  6249 A 1977
                         DESIGNATION:          872 6249 A TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         6167
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  AG7662
SETTING CLASSIFICATION:  Copper-clad steel rod                 OPUS PID:        
LATITUDE:   27° 30.3' N (  27.50500)          LONGITUDE:  82° 38.8' W ( -82.64670)


The primary bench mark is a disk located on the property at 8603 9th Avenue,
6.89 m (22.6 ft) SW of the SW corner of a cement block barbeque grill, 6.10 m
(20.0 ft) NE of the NE corner of the pier, 0.91 m (3.0 ft) ENE of a 0.3 m (1 ft)
diameter oak tree, and 0.70 m (2.3 ft) NW of a 0.21 m (0.7 ft) diameter oak
tree.  The bench mark is crimped to the top of a copper-clad steel rod driven to
a depth of 12.2 m (40 ft) encased in a pipe level with the ground.

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

                                                                                
Station ID: 8726249                         PUBLICATION DATE:  02/05/2004
Name:       PALMA SOLA BAY NORTH                              
            FL
NOAA Chart: 11414                           Latitude:   27° 30.2' N (  27.50330)
USGS Quad:  ANNA MARIA                      Longitude:  82° 38.9' W ( -82.64830)


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


                         BENCH MARK STAMPING:  6249 B 1977
                         DESIGNATION:          872 6249 B TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         6168
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  AG7661
SETTING CLASSIFICATION:  Concrete monument                     OPUS PID:        
LATITUDE:   27° 30.3' N (  27.50500)          LONGITUDE:  82° 38.8' W ( -82.64670)


The bench mark is a disk set in a concrete monument located SE of the residence
at 8603 9th Avenue, 10.52 m (34.5 ft) SE of a 0.3 m (1 ft) diameter magnolia
tree, 7.62 m (25.0 ft) south of a large cedar tree, 0.58 m (1.9 ft) WNW of the
SW corner of a flower shed (hot house).



                         BENCH MARK STAMPING:  6249 C 1977
                         DESIGNATION:          872 6249 C TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         6169
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  AG7660
SETTING CLASSIFICATION:  Concrete monument                     OPUS PID:        
LATITUDE:   27° 30.3' N (  27.50500)          LONGITUDE:  82° 38.8' W ( -82.64670)


The bench mark is a disk set in a concrete monument located near the residence
at 8603 9th Avenue, 11.13 m (36.5 ft) SE of a 5-trunked cedar tree, 0.67 m (2.2
ft) west of a 0.3 m (1 ft) diameter palm tree, and 0.37 m (1.2 ft) north of an
old water well.

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

                                                                                
Station ID: 8726249                         PUBLICATION DATE:  02/05/2004
Name:       PALMA SOLA BAY NORTH                              
            FL
NOAA Chart: 11414                           Latitude:   27° 30.2' N (  27.50330)
USGS Quad:  ANNA MARIA                      Longitude:  82° 38.9' W ( -82.64830)


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


                         BENCH MARK STAMPING:  6249 E 1977
                         DESIGNATION:          872 6249 E TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         6170
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  AG7659
SETTING CLASSIFICATION:  Concrete monument                     OPUS PID:        
LATITUDE:   27° 30.3' N (  27.50500)          LONGITUDE:  82° 38.8' W ( -82.64670)


The bench mark is a disk set in a concrete monument located near the residence
at 8603 9th Avenue, 5.18 m (17.0 ft) north of the centerline of the driveway,
4.39 m (14.4 ft) SW of the SW corner of a car garage, 3.35 m (11.0 ft) east of
the main entrance to the house, 1.10 m (3.6 ft) SE of the SE corner of the
house.



                         BENCH MARK STAMPING:  6249 F 1977
                         DESIGNATION:          872 6249 F TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         6171
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  AG7658
SETTING CLASSIFICATION:  Concrete monument                     OPUS PID:        
LATITUDE:   27° 30.3' N (  27.50500)          LONGITUDE:  82° 38.8' W ( -82.64670)


The bench mark is a disk set in a concrete monument located near the south end
of fence line on the west side of a driveway at 8603 9th Avenue, 24.84 m (81.5
ft) north of a power pole, 3.81 m (12.5 ft) west of the centerline of the drive,
0.40 m (1.3 ft) south of the south fence post, and 0.06 m (0.2 ft) below ground
level.

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

                                                                                
Station ID: 8726249                         PUBLICATION DATE:  02/05/2004
Name:       PALMA SOLA BAY NORTH                              
            FL
NOAA Chart: 11414                           Latitude:   27° 30.2' N (  27.50330)
USGS Quad:  ANNA MARIA                      Longitude:  82° 38.9' W ( -82.64830)


                            T I D A L   D A T U M S 


Tidal datums at PALMA SOLA BAY NORTH based on:

     LENGTH OF SERIES:      7 MONTHS
     TIME PERIOD:           April 1977 - October 1977
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  8726247 BRADENTON, MANATEE RIVER


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

     MEAN HIGHER HIGH WATER                     MHHW   =  0.669
     MEAN HIGH WATER                            MHW    =  0.588
     North American Vertical Datum              NAVD88 =  0.449
     MEAN SEA LEVEL                             MSL    =  0.344
     MEAN TIDE LEVEL                            MTL    =  0.340
     MEAN LOW WATER                             MLW    =  0.093
     MEAN LOWER LOW WATER                       MLLW   =  0.000

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     6249 A 1977                                 1.728    1.140
     6249 B 1977                                 2.285    1.697
     6249 C 1977                                 3.180    2.592
     6249 E 1977                                 3.162    2.574
     6249 F 1977                                 3.365    2.777


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

                                                                                
Station ID: 8726249                         PUBLICATION DATE:  02/05/2004
Name:       PALMA SOLA BAY NORTH                              
            FL
NOAA Chart: 11414                           Latitude:   27° 30.2' N (  27.50330)
USGS Quad:  ANNA MARIA                      Longitude:  82° 38.9' W ( -82.64830)


                             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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