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Bench Mark Sheet for 8722492, JUPITER WEST 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Superseded Epoch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Small blue map location marker Unpublished bench mark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: 8722492                         PUBLICATION DATE:  11/16/2010
Name:       JUPITER WEST                                      
            FL
NOAA Chart: 11474                           Latitude:   26° 56.8' N (  26.94670)
USGS Quad:  JUPITER                         Longitude:  80°  5.4' W ( -80.09000)


To reach the tidal bench marks from the intersection of State Highway A1A and
County Road 706 (Indiantown Road) in Jupiter, proceed 1.61 km (1.0 mi) north on
State Highway A1A to the north end of the bridge over the Loxahatchee River. 
The bench marks are in the vicinity of the State Highway 811 bridge and the
Florida East Coast Railroad bridge.  The tide gage and staff were located on the
east end of the north fender of the old State Highway 818 bridge over the
Loxahatchee River.  


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


                 PRIMARY BENCH MARK STAMPING:  NO 2 1973
                         DESIGNATION:          872 2492 TIDAL 2

MONUMENTATION:           Tidal Station disk                    VM#:         5541
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  AD5652
SETTING CLASSIFICATION:  Concrete sea wall                     OPUS PID:        
LATITUDE:   26° 56.9' N (  26.94830)          LONGITUDE:  80°  5.4' W ( -80.09000)


The primary bench mark is a disk set in the concrete sea wall under the north
end of the six-lane State Highway A1A bridge over the Loxahatchee River, 11.95 m
(39.2 ft) NW of bench mark NO 3 1973, 7.32 m (24.0 ft) SW of the center of the
sixth bridge pier SW of the NE bridge abutment, and 6.10 m (20.0 ft) SE of the
west edge of the State Highway A1A bridge.    NOTE: The stamping on the mark is
worn and illegible.  

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

                                                                                
Station ID: 8722492                         PUBLICATION DATE:  11/16/2010
Name:       JUPITER WEST                                      
            FL
NOAA Chart: 11474                           Latitude:   26° 56.8' N (  26.94670)
USGS Quad:  JUPITER                         Longitude:  80°  5.4' W ( -80.09000)


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


                         BENCH MARK STAMPING:  B 232 1965
                         DESIGNATION:          B 232

MONUMENTATION:           Bench Mark disk                       VM#:         5540
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  AD2971
SETTING CLASSIFICATION:  Concrete abutment                     OPUS PID:        
LATITUDE:   26° 56.8' N (  26.94670)          LONGITUDE:  80°  5.5' W ( -80.09170)


The bench mark is a dIsk set in the top of and 1.01 m (3.3 ft) SE of the NW end
of the SW concrete abutment of the railroad bridge spanning the Loxahatchee
River, 5.91 m (19.4 ft) NW of and level with the near rail, and 0.91 m (3.0 ft)
SW of the NE face of the abutment.



                         BENCH MARK STAMPING:  NO 3 1973
                         DESIGNATION:          872 2492 TIDAL 3

MONUMENTATION:           Tidal Station disk                    VM#:         5542
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  AD5653
SETTING CLASSIFICATION:  Concrete sea wall                     OPUS PID:        
LATITUDE:   26° 56.9' N (  26.94830)          LONGITUDE:  80°  5.4' W ( -80.09000)


The bench mark is a desk set flush in the sea wall beneath the A1A bridge on the
north side of the Loxahatchee River, 33.74 m (110.7 ft) SE of the SE rail of a
railroad track which runs parallel to highway A1A, 18.90 m (62.0 ft) SE of the
NW end of the sea wall, 12.01 m (39.4 ft) west of the west corner of the
southernmost pillar in the last row of pillars supporting the bridge before the
NE side of the river, and 11.89 m (39.0 ft) SE of bench mark NO 2 1973.    NOTE:
The stamping on the mark is worn and barely legible.  

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

                                                                                
Station ID: 8722492                         PUBLICATION DATE:  11/16/2010
Name:       JUPITER WEST                                      
            FL
NOAA Chart: 11474                           Latitude:   26° 56.8' N (  26.94670)
USGS Quad:  JUPITER                         Longitude:  80°  5.4' W ( -80.09000)


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


                         BENCH MARK STAMPING:  2492 C 1981
                         DESIGNATION:          872 2492 C TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         5543
AGENCY:                  Florida Department of Transportation
                         (FLDT)                                IDB PID#:  AD6251
SETTING CLASSIFICATION:  Concrete bridge guardrail             OPUS PID:        
LATITUDE:   26° 56.9' N (  26.94830)          LONGITUDE:  80°  5.3' W ( -80.08833)


The bench mark is a disk set in the top of and 0.30 m (1.0 ft) SW of the NE end
of the SE concrete bridge rail of the highway bridge spanning the Loxahatchee
River, 6.61 m (21.7 ft) SE of the centerline of the northbound lanes of the
highway, and 1.01 m (3.3 ft) above the level of the highway.



                         BENCH MARK STAMPING:  2492 D 1981
                         DESIGNATION:          872 2492 D TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         5544
AGENCY:                  Florida Department of Transportation
                         (FLDT)                                IDB PID#:  AD6260
SETTING CLASSIFICATION:  Concrete bridge guardrail             OPUS PID:        
LATITUDE:   26° 56.8' N (  26.94670)          LONGITUDE:  80°  5.5' W ( -80.09167)


The bench mark is a disk set in the top of the bridge concrete guardrail 1.22 m
(4.0 ft) above the highway on the west side of the bridge spanning the
Loxahatchee River, 53.68 m (176.1 ft) NE of the SW corner of the guardrail, 8.84
m (29.0 ft) NW of the centerline of the highway, 1.28 m (4.2 ft) SW of a
lightpole, 0.30 m (1.0 ft) NE of the SW corner of the true bridge corner, and
1.22 m (4.0 ft) above highway.

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

                                                                                
Station ID: 8722492                         PUBLICATION DATE:  11/16/2010
Name:       JUPITER WEST                                      
            FL
NOAA Chart: 11474                           Latitude:   26° 56.8' N (  26.94670)
USGS Quad:  JUPITER                         Longitude:  80°  5.4' W ( -80.09000)


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


                         BENCH MARK STAMPING:  A 232 1965
                         DESIGNATION:          A 232

MONUMENTATION:           Bench Mark disk                       VM#:        18729
AGENCY:                  US  Coast and Geodetic Survey         IDB PID#:  AD2988
SETTING CLASSIFICATION:  Concrete Post                         OPUS PID:        
LATITUDE:   26° 57.5' N (  26.95833)          LONGITUDE:  80°  5.4' W ( -80.09000)


The bench mark is a dIsk set at the intersection of the Florida East Coast
Railroad and Tequesta Drive, 10.39 m (34.1 ft) west of the near rail, 9.39 m
(30.8 ft) north of and level with centerline of the westbound lanes of Tequesta
Drive, 6.49 m (21.3 ft) west of a railroad signal, 2.01 m (6.6 ft) north of the
north edge of a sidewalk, 0.40 m (1.3 ft) east of a witness post, and the
monument projects 0.30 m (1.0 ft) above the ground surface.    NOTE--The
monument leans slightly to the NE, but is solid in place.  

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

                                                                                
Station ID: 8722492                         PUBLICATION DATE:  11/16/2010
Name:       JUPITER WEST                                      
            FL
NOAA Chart: 11474                           Latitude:   26° 56.8' N (  26.94670)
USGS Quad:  JUPITER                         Longitude:  80°  5.4' W ( -80.09000)


                            T I D A L   D A T U M S 


Tidal datums at JUPITER WEST based on:

     LENGTH OF SERIES:      9 MONTHS
     TIME PERIOD:           February 1973 - October 1973
     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:

     MEAN HIGHER HIGH WATER                     MHHW   =  0.690
     North American Vertical Datum              NAVD88 =  0.681
     MEAN HIGH WATER                            MHW    =  0.644
     MEAN TIDE LEVEL                            MTL    =  0.345
     MEAN SEA LEVEL                             MSL    =  0.337
     MEAN LOW WATER                             MLW    =  0.045
     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 1973                                   1.306    0.662
     B 232 1965                                  4.015    3.371
     NO 3 1973                                   1.308    0.664
     2492 C 1981                                 6.495    5.851
     2492 D 1981                                 4.155    3.511
     A 232 1965                                  5.532    4.888


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 mark A 232 1965 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: 8722492                         PUBLICATION DATE:  11/16/2010
Name:       JUPITER WEST                                      
            FL
NOAA Chart: 11474                           Latitude:   26° 56.8' N (  26.94670)
USGS Quad:  JUPITER                         Longitude:  80°  5.4' W ( -80.09000)


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