Bench Mark Sheet for 8722971, WHISKEY CREEK, SOUTH ENTRANCE 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Superseded Epoch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Small blue map location marker Unpublished bench mark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  8

                                                                                
Station ID: 8722971                         PUBLICATION DATE:  05/23/2003
Name:       SOUTH DANIA SOUND                                 
            FL
NOAA Chart: 11470                           Latitude:   26°  3.3' N (  26.05500)
USGS Quad:  PORT EVERGLADES                 Longitude:  80°  6.8' W ( -80.11330)


To reach the tidal bench marks from the intersection of State Highway A1A and
U.S. Highway 1 in Dania, proceed east on State Highway A1A for 3.2 km (2.0 mi)
to a paved road leading to John V. Lloyd State Recreation Area, then north on
the paved road for 0.24 km (0.15 mi) to the bridge over Whiskey Creek.  The
bench marks are in the vicinity of the bridge.  The tide gage and staff were
under the bridge, on the south seawall east of the bridge.


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


                 PRIMARY BENCH MARK STAMPING:  NO 2 1973
                         DESIGNATION:          872 2971TIDAL 2

MONUMENTATION:           Tidal Station disk                    VM#:         5718
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  AD5887
SETTING CLASSIFICATION:  Concrete sea wall                     OPUS PID:        
LATITUDE:   26°  3.3' N (  26.05500)          LONGITUDE:  80°  6.9' W ( -80.11500)


The primary bench mark is a disk set in the concrete seawall under the south end
of the bridge over Whiskey Creek, 14 m (45 ft) east of the centerline of the
bridge.



                         BENCH MARK STAMPING:  NO 4 1973
                         DESIGNATION:          872 2971 TIDAL 4

MONUMENTATION:           Tidal Station disk                    VM#:         5719
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  AD5888
SETTING CLASSIFICATION:  Concrete sea wall                     OPUS PID:        
LATITUDE:   26°  3.3' N (  26.05500)          LONGITUDE:  80°  6.9' W ( -80.11500)


The bench mark is a disk set in the concrete seawall under the south end of the
bridge over Whiskey Creek, 35 m (115 ft) west of bench mark NO 2 1973, and 21 m
(70 ft) west of the centerline of the bridge.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  2 of  8

                                                                                
Station ID: 8722971                         PUBLICATION DATE:  05/23/2003
Name:       SOUTH DANIA SOUND                                 
            FL
NOAA Chart: 11470                           Latitude:   26°  3.3' N (  26.05500)
USGS Quad:  PORT EVERGLADES                 Longitude:  80°  6.8' W ( -80.11330)


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


                         BENCH MARK STAMPING:  86 71 B19
                         DESIGNATION:          86 71 B19

MONUMENTATION:           Bench Mark disk                       VM#:         5722
AGENCY:                  Florida Department of Transportation
                         (FLDT)                                IDB PID#:  AD8072
SETTING CLASSIFICATION:  Concrete bridge walkway               OPUS PID:        
LATITUDE:   26°  3.2' N (  26.05333)          LONGITUDE:  80°  6.9' W ( -80.11500)


The bench mark is a disk set in the concrete walkway of the State Highway A1A
Bridge over the Intracoastal Waterway, 0.24 km (0.15 mi) south of the bridge
over Whiskey Creek, 34 m (110 ft) west of the NE corner of the bridge, and 4 m
(13 ft) north of the centerline of the westbound lane of the highway.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  3 of  8

                                                                                
Station ID: 8722971                         PUBLICATION DATE:  05/23/2003
Name:       SOUTH DANIA SOUND                                 
            FL
NOAA Chart: 11470                           Latitude:   26°  3.3' N (  26.05500)
USGS Quad:  PORT EVERGLADES                 Longitude:  80°  6.8' W ( -80.11330)


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


                         BENCH MARK STAMPING:  DANIA 3 1985
                         DESIGNATION:          DANIA 3

MONUMENTATION:           Triangulation Station disk            VM#:         5723
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  AD7812
SETTING CLASSIFICATION:  Concrete sidewalk                     OPUS PID:        
LATITUDE:   26°  3.2' N (  26.05333)          LONGITUDE:  80°  6.8' W ( -80.11333)


The bench mark is a disk set in a concrete sidewalk, 42.92 m (140.8 ft) east of
the SE corner of the State Highway A1A bridge over the Intracoastal Waterway,
6.25 m (20.5 ft) south of the centerline of the east bound lane of the highway,
and 1.31 m (4.3 ft) south of a witness post.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  4 of  8

                                                                                
Station ID: 8722971                         PUBLICATION DATE:  05/23/2003
Name:       SOUTH DANIA SOUND                                 
            FL
NOAA Chart: 11470                           Latitude:   26°  3.3' N (  26.05500)
USGS Quad:  PORT EVERGLADES                 Longitude:  80°  6.8' W ( -80.11330)


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


                         BENCH MARK STAMPING:  DANIA 3 1985 (AZI)
                         DESIGNATION:          DANIA 3  AZ MK 2

MONUMENTATION:           Azimuth Mark disk                     VM#:         5724
AGENCY:                  National Geodetic Survey (NGS)        IDB PID#:  AD7812
SETTING CLASSIFICATION:  Concrete bridge gutter                OPUS PID:        
LATITUDE:   26°  3.3' N (  26.05500)          LONGITUDE:  80°  6.9' W ( -80.11500)


The bench mark is a disk set in the corner gutter of the bridge over Whiskey
Creek, 10.82 m (35.5 ft) WSW of bench mark 24.71, 4.51 m (14.8 ft) west of the
centerline of the road, and 0.82 m (2.7 ft) east of the SW corner of the bridge.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  5 of  8

                                                                                
Station ID: 8722971                         PUBLICATION DATE:  05/23/2003
Name:       SOUTH DANIA SOUND                                 
            FL
NOAA Chart: 11470                           Latitude:   26°  3.3' N (  26.05500)
USGS Quad:  PORT EVERGLADES                 Longitude:  80°  6.8' W ( -80.11330)


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


                         BENCH MARK STAMPING:  DANIA 3 NO 5 1985
                         DESIGNATION:          DANIA 3 RM 5

MONUMENTATION:           Reference Mark disk                   VM#:         5725
AGENCY:                  National Geodetic Survey (NGS)        IDB PID#:  AD7813
SETTING CLASSIFICATION:  Concrete sidewalk                     OPUS PID:        
LATITUDE:   26°  3.2' N (  26.05333)          LONGITUDE:  80°  6.8' W ( -80.11333)


The bench mark is a disk set in a concrete sidewalk, 67 m (220 ft) east of the
SE corner of the State Highway A1A bridge over the Intracoastal Waterway, 24.51
m (80.4 ft) east of bench mark DANIA 3 1985 (AZI), 7.19 m (23.6 ft) south of the
centerline of the eastbound lane of the highway, and 0.27 m (0.9 ft) north of
the south edge of the sidewalk.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  6 of  8

                                                                                
Station ID: 8722971                         PUBLICATION DATE:  05/23/2003
Name:       SOUTH DANIA SOUND                                 
            FL
NOAA Chart: 11470                           Latitude:   26°  3.3' N (  26.05500)
USGS Quad:  PORT EVERGLADES                 Longitude:  80°  6.8' W ( -80.11330)


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


                         BENCH MARK STAMPING:  DANIA 3 NO 6 1985
                         DESIGNATION:          DANIA 3 RM 6

MONUMENTATION:           Bench Mark disk                       VM#:         5726
AGENCY:                  Florida Department of Transportation
                         (FLDT)                                IDB PID#:  AD8073
SETTING CLASSIFICATION:  Concrete bridge abutment              OPUS PID:        
LATITUDE:   26°  3.2' N (  26.05333)          LONGITUDE:  80°  6.9' W ( -80.11500)


The bench mark is a disk set in the east abutment at the NE corner of the State
Highway A1A bridge over the Intracoastal Waterway, 34 m (110 ft) east of bench
mark 86 71 B19, and 5 m (15 ft) north of the centerline of the westbound lane of
the highway.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  7 of  8

                                                                                
Station ID: 8722971                         PUBLICATION DATE:  05/23/2003
Name:       SOUTH DANIA SOUND                                 
            FL
NOAA Chart: 11470                           Latitude:   26°  3.3' N (  26.05500)
USGS Quad:  PORT EVERGLADES                 Longitude:  80°  6.8' W ( -80.11330)


                            T I D A L   D A T U M S 


Tidal datums at SOUTH DANIA SOUND based on:

     LENGTH OF SERIES:      1 MONTH
     TIME PERIOD:           August 1973 - August 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   =  0.750
     MEAN HIGH WATER                            MHW    =  0.723
     North American Vertical Datum              NAVD88 =  0.623
     MEAN TIDE LEVEL                            MTL    =  0.386
     MEAN SEA LEVEL                             MSL    =  0.381
     MEAN LOW WATER                             MLW    =  0.049
     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                                   1.298    0.575
     NO 4 1973                                   1.301    0.578
     86 71 B19                                   8.095    7.372
     DANIA 3 1985                                6.948    6.225
     DANIA 3 1985 (AZI)                          6.557    5.834
     DANIA 3 NO 5 1985                           7.496    6.773
     DANIA 3 NO 6 1985                           6.638    5.915


Foot Notes:

Bench marks 86 71 B19, Dania 3 1985, Dania 3 (AZI), Dania 3 NO5 1985, and Dania
3 NO6 1985 are based on one differential leveling connection and do not meet the
quality control standards of the NOS.  Therefore, caution should be used when
deriving elevations for these marks.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  8 of  8

                                                                                
Station ID: 8722971                         PUBLICATION DATE:  05/23/2003
Name:       SOUTH DANIA SOUND                                 
            FL
NOAA Chart: 11470                           Latitude:   26°  3.3' N (  26.05500)
USGS Quad:  PORT EVERGLADES                 Longitude:  80°  6.8' W ( -80.11330)


                             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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