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Bench Mark Sheet for 8722383, PORT SALERNO 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Superseded Epoch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Small blue map location marker Unpublished bench mark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  6

                                                                                
Station ID: 8722383                         PUBLICATION DATE:  03/24/2010
Name:       PORT SALERNO                                      
            FL
NOAA Chart: 11474                           Latitude:   27°  9.1' N (  27.15170)
USGS Quad:  ST. LUCIE INLET                 Longitude:  80° 11.7' W ( -80.19500)


To reach the tidal bench marks from the U.S. Post Office in Port Salerno,
proceed 0.08 km (0.05 mi) north on State Highway A1A (SE Dixie Highway) to the
intersection with Seaward Street, then 0.40 km (0.25 mi) east on Seaward Street,
which becomes SE Park Drive, to the Pirate Cove Marina.  The bench marks are
located on the Pirate Cove Marina concrete sea wall.  The tide gage and staff
were located on the north end of an old E shaped wooden dock.


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


                 PRIMARY BENCH MARK STAMPING:  NO 1 1972
                         DESIGNATION:          872 2383 TIDAL 1

MONUMENTATION:           Tidal Station disk                    VM#:         5459
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  AF6957
SETTING CLASSIFICATION:  Concrete sea wall                     OPUS PID:        
LATITUDE:   27°  9.0' N (  27.15000)          LONGITUDE:  80° 11.7' W ( -80.19500)


The primary bench mark is a disk located 21.24 m (69.7 ft) east of the NE corner
of a swimming pool pump house, 5.49 m (18.0 ft) east of the approximate
centerline of the dirt road and the marina, 15.24 m (50.0 ft) east of the NE
corner of the dockmasters building, and is at boat space 23.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  2 of  6

                                                                                
Station ID: 8722383                         PUBLICATION DATE:  03/24/2010
Name:       PORT SALERNO                                      
            FL
NOAA Chart: 11474                           Latitude:   27°  9.1' N (  27.15170)
USGS Quad:  ST. LUCIE INLET                 Longitude:  80° 11.7' W ( -80.19500)


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


                         BENCH MARK STAMPING:  NO 4 1972
                         DESIGNATION:          872 2383 TIDAL 4

MONUMENTATION:           Tidal Station disk                    VM#:         5462
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  AF6956
SETTING CLASSIFICATION:  Concrete sea wall                     OPUS PID:        
LATITUDE:   27°  9.0' N (  27.15000)          LONGITUDE:  80° 11.7' W ( -80.19500)


The bench mark is a disk located 26.21 m (86.0 ft) south of bench mark NO 1
1972, 22.77 m (74.7 ft) south of the south edge of a 4-foot wide walkway to the
fueling pier, 5.18 m (17.0 ft) east of the approximate centerline of a dirt
road, and 4.57 m (15.0 ft) south of an 8-foot wide aluminum walkway to a T-Dock.



                         BENCH MARK STAMPING:  NO 5 1972
                         DESIGNATION:          872 2383 TIDAL 5

MONUMENTATION:           Tidal Station disk                    VM#:         5463
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  AF6955
SETTING CLASSIFICATION:  Concrete sea wall                     OPUS PID:        
LATITUDE:   27°  9.0' N (  27.15000)          LONGITUDE:  80° 11.7' W ( -80.19500)


The bench mark is a disk located 23.47 m (77.0 ft) south of bench mark NO 4
1972, 16.73 m (54.9 ft) NE of the SW end of the sea wall, and 5.18 m (17.0 ft)
east of the approximate centerline of a dirt road.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  3 of  6

                                                                                
Station ID: 8722383                         PUBLICATION DATE:  03/24/2010
Name:       PORT SALERNO                                      
            FL
NOAA Chart: 11474                           Latitude:   27°  9.1' N (  27.15170)
USGS Quad:  ST. LUCIE INLET                 Longitude:  80° 11.7' W ( -80.19500)


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


                         BENCH MARK STAMPING:  GCY D15 2001
                         DESIGNATION:          GCY D15

MONUMENTATION:           Flange-encased Rod                    VM#:        18914
AGENCY:                  Surveyors & Mappers Inc. (GCYI)       IDB PID#:  AJ5257
SETTING CLASSIFICATION:  Stainless steel rod in sleeve         OPUS PID#: AJ5257
LATITUDE:   27°  8.8' N (  27.14667)          LONGITUDE:  80° 12.9' W ( -80.21500)


The bench mark is a flange encased rod located 19.51 m (64.0 ft) east of the
east edge of the pavement of the northbound lanes of U.S. Highway 1, 7.32 m
(24.0 ft) south of a mitered culvert end and 1.07 m (3.5 ft) west of a carsonite
witness post.  The datum point is set an unspecified depth below ground, being
the top of a stainless steel rod driven an unspecified depth to refusal, in a
sleeve extending to an unspecified depth and encased in a 5-inch logo cap. 
Note: There was one magnet placed inside of the PVC collar.      

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  4 of  6

                                                                                
Station ID: 8722383                         PUBLICATION DATE:  03/24/2010
Name:       PORT SALERNO                                      
            FL
NOAA Chart: 11474                           Latitude:   27°  9.1' N (  27.15170)
USGS Quad:  ST. LUCIE INLET                 Longitude:  80° 11.7' W ( -80.19500)


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


                         BENCH MARK STAMPING:  V 232 1965
                         DESIGNATION:          V 232

MONUMENTATION:           Bench Mark disk                       VM#:        18915
AGENCY:                  US Coast and Geodetic Survey (USC &
                         GS)                                       IDB PID#:  AF3106
SETTING CLASSIFICATION:  Copper-clad Steel Rod                 OPUS PID#: AF3106
LATITUDE:   27°  8.8' N (  27.14667)          LONGITUDE:  80° 12.0' W ( -80.20000)


The bench mark is a disk located 20.21 m (66.3 ft) NE of the centerline of SE
Railway Avenue, 14.11 m (46.3 ft) SW of the near rail, 9.69 m (31.8 ft) NW of
and level with the street centerline, 1.01 m (3.3 ft) NW of a utility pole stub,
and 0.30 m (1.0 ft) NE of a witness post.  The bench mark is set flush with the
ground surface crimped to the top of a copper-clad steel rod, driven to an
unspecified depth to refusal, and encased in a 4-inch metal pipe.  



                         BENCH MARK STAMPING:  2383 A 2005
                         DESIGNATION:          872 2383 A TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:        18916
AGENCY:                  Florida Department of Environmental
                         Protection                            IDB PID#:        
SETTING CLASSIFICATION:  Concrete Box Drain                    OPUS PID:        
LATITUDE:   27°  9.0' N (  27.15000)          LONGITUDE:  80° 11.8' W ( -80.19667)


The bench mark is a disk set flush in the top of a concrete box drain and 0.30 m
(1.0 ft) below the level of SE Mulford Lane, 15.12 m (49.6 ft) NNW of the
approximate centerline of the northernmost entrance drive of the Pirates Cove
Marina, 10.55 m (34.6 ft) NE of the approximate centerline of SE Mulford Lane,
3.87 m (12.7 ft) NNW of the extended centerline of SE Westfield Street and 0.18
m (0.6 ft) NE of a carsonite witness post.  

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  5 of  6

                                                                                
Station ID: 8722383                         PUBLICATION DATE:  03/24/2010
Name:       PORT SALERNO                                      
            FL
NOAA Chart: 11474                           Latitude:   27°  9.1' N (  27.15170)
USGS Quad:  ST. LUCIE INLET                 Longitude:  80° 11.7' W ( -80.19500)


                            T I D A L   D A T U M S 


Tidal datums at PORT SALERNO based on:

     LENGTH OF SERIES:      2 MONTHS
     TIME PERIOD:           August 1972 - September 1972
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  8723170 MIAMI BEACH (CITY PIER)


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

     North American Vertical Datum              NAVD88 =  0.481
     MEAN HIGHER HIGH WATER                     MHHW   =  0.337
     MEAN HIGH WATER                            MHW    =  0.304
     MEAN SEA LEVEL                             MSL    =  0.172
     MEAN TIDE LEVEL                            MTL    =  0.170
     MEAN LOW WATER                             MLW    =  0.036
     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 1 1972                                   1.203    0.899
     NO 4 1972                                   1.216    0.912
     NO 5 1972                                   1.242    0.938
     GCY D15 2001                                5.625    5.321
     V 232 1965                                  3.196    2.892
     2383 A 2005                                 3.781    3.477


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 GCY D15 2001, V 232 1965, and 2383
A 2005 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  6 of  6

                                                                                
Station ID: 8722383                         PUBLICATION DATE:  03/24/2010
Name:       PORT SALERNO                                      
            FL
NOAA Chart: 11474                           Latitude:   27°  9.1' N (  27.15170)
USGS Quad:  ST. LUCIE INLET                 Longitude:  80° 11.7' W ( -80.19500)


                             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 8722383 PORT SALERNO, FL

Revised: 08/08/2018
NOAA / National Ocean Service
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