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Bench Mark Sheet for 8722334, NORTH FORK, ST. LUCIE RIVER 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Superseded Epoch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Small blue map location marker Unpublished bench mark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: 8722334                         PUBLICATION DATE:  12/12/2003
Name:       NORTH FORK, ST. LUCIE RIVER                       
            FL
NOAA Chart: 11474                           Latitude:   27° 14.6' N (  27.24330)
USGS Quad:  PALM CITY                       Longitude:  80° 18.8' W ( -80.31330)


To reach the tidal bench marks from the NW end of the U.S. Highway 1 bridge over
the St. Lucie River in Stuart, proceed 6.9 km (4.3 mi) north on U.S. Highway 1
to West Moreland Boulevard (the entrance for the Sandpiper Bay Resort), then
turn left and proceed west on West Moreland Boulevard for 2.1 km (1.3 mi) to
Pine Valley Street, then turn left and proceed south on Pine Valley Street for
2.3 km (1.4 mi) to the St. Lucie Hilton Country Club Marina.  The bench marks
are on the Hilton Marina property, along the concrete walk and sea wall.  The
tide gage and staff were on the Hilton Marina pier.


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


                 PRIMARY BENCH MARK STAMPING:  NO 2 1972
                         DESIGNATION:          872 2334 TIDAL 2

MONUMENTATION:           Tidal Station disk                    VM#:         5437
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  AF6948
SETTING CLASSIFICATION:  Concrete sea wall                     OPUS PID:        
LATITUDE:   27° 14.6' N (  27.24389)          LONGITUDE:  80° 18.9' W ( -80.31500)


The primary bench mark is a disk set flush in the top of the concrete sea wall,
18 m (60 ft) SW of the SW corner of the dock master's office, 0.79 m (2.6 ft) NE
of the SW corner of the sea wall and boat ramp, 0.61 m (2.0 ft) SW of a 4-inch
pipe base supporting a Standard Oil sign, and 0.55 m (1.8 ft) east of the east
wall of the boat ramp.

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

                                                                                
Station ID: 8722334                         PUBLICATION DATE:  12/12/2003
Name:       NORTH FORK, ST. LUCIE RIVER                       
            FL
NOAA Chart: 11474                           Latitude:   27° 14.6' N (  27.24330)
USGS Quad:  PALM CITY                       Longitude:  80° 18.8' W ( -80.31330)


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


                         BENCH MARK STAMPING:  NO 3 1972
                         DESIGNATION:          872 2334 TIDAL 3

MONUMENTATION:           Tidal Station disk                    VM#:         5438
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  AF6949
SETTING CLASSIFICATION:  Concrete sea wall                     OPUS PID#: AF6949
LATITUDE:   27° 14.6' N (  27.24389)          LONGITUDE:  80° 18.9' W ( -80.31528)


The bench mark is a disk set flush in the top of the concrete sea wall, 49 m
(162 ft) west of the SW corner of the dock master's office, and 0.24 m (0.8 ft)
NE of the SW corner of the sea wall and boat ramp.



                         BENCH MARK STAMPING:  NO 4 1972
                         DESIGNATION:          872 2334 TIDAL 4

MONUMENTATION:           Tidal Station disk                    VM#:         5439
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  AF6946
SETTING CLASSIFICATION:  Concrete dock                         OPUS PID:        
LATITUDE:   27° 14.6' N (  27.24330)          LONGITUDE:  80° 18.8' W ( -80.31330)


The bench mark is a disk set flush in the concrete dock of the St. Lucie Hilton
Country Club, just south of the tennis courts, 70.56 m (231.5 ft) west of the NE
corner of the dock, 33.38 m (109.5 ft) east of the NW corner of the dock, 2.90 m
(9.5 ft) north of the south edge of the dock, and 0.15 m (0.5 ft) south of the
north edge of the dock.

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

                                                                                
Station ID: 8722334                         PUBLICATION DATE:  12/12/2003
Name:       NORTH FORK, ST. LUCIE RIVER                       
            FL
NOAA Chart: 11474                           Latitude:   27° 14.6' N (  27.24330)
USGS Quad:  PALM CITY                       Longitude:  80° 18.8' W ( -80.31330)


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


                         BENCH MARK STAMPING:  NO 5 1972
                         DESIGNATION:          872 2334 TIDAL 5

MONUMENTATION:           Tidal Station disk                    VM#:         5440
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  AF6945
SETTING CLASSIFICATION:  Concrete dock                         OPUS PID:        
LATITUDE:   27° 14.6' N (  27.24330)          LONGITUDE:  80° 18.8' W ( -80.31330)


The bench mark is a disk set flush in the concrete dock of the St. Lucie Hilton
Country Club Marina, just south of the tennis courts, 54.96 m (180.3 ft) east of
bench mark NO 4 1972, 15.61 m (51.2 ft) east of the NE corner of the dock, 2.90
m (9.5 ft) north of the south edge of the dock, and 0.12 m (0.4 ft) south of the
north edge of the dock.

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

                                                                                
Station ID: 8722334                         PUBLICATION DATE:  12/12/2003
Name:       NORTH FORK, ST. LUCIE RIVER                       
            FL
NOAA Chart: 11474                           Latitude:   27° 14.6' N (  27.24330)
USGS Quad:  PALM CITY                       Longitude:  80° 18.8' W ( -80.31330)


                            T I D A L   D A T U M S 


Tidal datums at NORTH FORK, ST. LUCIE RIVER based on:

     LENGTH OF SERIES:      5 MONTHS
     TIME PERIOD:           August 1972 - December 1972
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  8722371 SEWALL POINT. ST. LUCIE RIVER


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

     North American Vertical Datum              NAVD88 =  0.466
     MEAN HIGHER HIGH WATER                     MHHW   =  0.367
     MEAN HIGH WATER                            MHW    =  0.335
     MEAN SEA LEVEL                             MSL    =  0.192
     MEAN TIDE LEVEL                            MTL    =  0.186
     MEAN LOW WATER                             MLW    =  0.037
     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 1972                                   1.468    1.133
     NO 3 1972                                   1.461    1.126
     NO 4 1972                                   1.256    0.921
     NO 5 1972                                   1.249    0.914


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

                                                                                
Station ID: 8722334                         PUBLICATION DATE:  12/12/2003
Name:       NORTH FORK, ST. LUCIE RIVER                       
            FL
NOAA Chart: 11474                           Latitude:   27° 14.6' N (  27.24330)
USGS Quad:  PALM CITY                       Longitude:  80° 18.8' W ( -80.31330)


                             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 8722334 NORTH FORK, ST. LUCIE RIVER, FL

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