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Bench Mark Sheet for 8721136, NORTH TURNBULL BAY 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Superseded Epoch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Small blue map location marker Unpublished bench mark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: 8721136                         PUBLICATION DATE:  06/28/2004
Name:       NORTH TURNBULL BAY                                
            FL
NOAA Chart: 11485                           Latitude:   29°  5.0' N (  29.08330)
USGS Quad:  NEW SMYRNA BEACH                Longitude:  80° 58.0' W ( -80.96670)


To reach the tidal bench marks from the intersection of Florida Highway 5A and
U.S. Highway 1 in Port Orange, proceed south on U.S. Highway 1 for 2.7 km (1.7
mi) to the NW corner of the third (southern) bridge over North Turnbull Bay. 
The bench marks are located in the vicinity and SE of the third (southern)
bridge over North Turnbull Bay.  The tide gage and staff were located on the
concrete wingwall of the bridge.


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


                 PRIMARY BENCH MARK STAMPING:  1136 F 1978
                         DESIGNATION:          872 1136 F TIDAL

MONUMENTATION:           Survey disk                           VM#:         5290
AGENCY:                  Florida Department of Transportation
                         (FLDT)                                IDB PID#:  AQ2617
SETTING CLASSIFICATION:  Concrete abutment                     OPUS PID:        
LATITUDE:   29°  5.1' N (  29.08500)          LONGITUDE:  80° 58.0' W ( -80.96670)


The primary bench mark is a disk set flush in the concrete abutment at the NW
corner of the southbound lane of the third (southern) bridge over North Turnbull
Bay, 6 m (19 ft) west of the centerline of U.S. Highway 1, 0.15 m (0.5 ft) north
of the NW corner of the bridge, 0.12 m (0.4 ft) south of the north edge of the
wing wall foundation of the bridge, and is 0.46 m (1.5 ft) above ground level.

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

                                                                                
Station ID: 8721136                         PUBLICATION DATE:  06/28/2004
Name:       NORTH TURNBULL BAY                                
            FL
NOAA Chart: 11485                           Latitude:   29°  5.0' N (  29.08330)
USGS Quad:  NEW SMYRNA BEACH                Longitude:  80° 58.0' W ( -80.96670)


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


                         BENCH MARK STAMPING:  1136 A 1978 C.L.B.
                         DESIGNATION:          872 1136 A TIDAL

MONUMENTATION:           Survey disk                           VM#:         5285
AGENCY:                  Florida Department of Natural Resources
                         (FLDNR)                               IDB PID#:  AQ2614
SETTING CLASSIFICATION:  Concrete monument                     OPUS PID:        
LATITUDE:   29°  5.0' N (  29.08330)          LONGITUDE:  80° 58.0' W ( -80.96670)


The bench mark is a disk set flush in the top of a concrete monument, 165 m (540
ft) SE of the east corner of the third (southern) concrete bridge over the marsh
area of North Turnbull Bay, 9.39 m (30.8 ft) NE of the centerline of the
northbound lane of U.S. Highway 1, 2.29 m (7.5 ft) SE of power pole # 11921,
0.40 m (1.3 ft) SW of a witness post, and is level with the ground.



                         BENCH MARK STAMPING:  1136 B 1978 C.L.B.
                         DESIGNATION:          872 1136 B TIDAL

MONUMENTATION:           Survey disk                           VM#:         5286
AGENCY:                  Florida Department of Natural Resources
                         (FLDNR)                               IDB PID#:  AQ2613
SETTING CLASSIFICATION:  Concrete monument                     OPUS PID#: AQ2613
LATITUDE:   29°  5.0' N (  29.08330)          LONGITUDE:  80° 57.9' W ( -80.96500)


The bench mark is a disk set flush in the top of a concrete monument, 192 m (630
ft) SE of bench mark 1136 A 1978 C.L.B., 8.99 m (29.5 ft) NE of the centerline
of the northbound lane of U.S. Highway 1, 1.52 m (5.0 ft) SE of power pole
#11917, 0.55 m (1.8 ft) SW of a witness post, and is 12 cm (0.4 ft) below ground
level.

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

                                                                                
Station ID: 8721136                         PUBLICATION DATE:  06/28/2004
Name:       NORTH TURNBULL BAY                                
            FL
NOAA Chart: 11485                           Latitude:   29°  5.0' N (  29.08330)
USGS Quad:  NEW SMYRNA BEACH                Longitude:  80° 58.0' W ( -80.96670)


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


                         BENCH MARK STAMPING:  1136 C 1978 C.L.B.
                         DESIGNATION:          872 1136 C TIDAL

MONUMENTATION:           Survey disk                           VM#:         5287
AGENCY:                  Florida Department of Natural Resources
                         (FLDNR)                               IDB PID#:  AQ2612
SETTING CLASSIFICATION:  Concrete monument                     OPUS PID:        
LATITUDE:   29°  4.9' N (  29.08170)          LONGITUDE:  80° 57.9' W ( -80.96500)


The bench mark is a disk set flush in the top of a concrete monument, 160 m (525
ft) SE of bench mark 1136 B 1978 C.L.B., 10.82 m (35.5 ft) NE of the centerline
of the northbound lane of U.S. Highway 1, 1.10 m (3.6 ft) NE of power pole
#11914, 0.46 m (1.5 ft) SW of a steel witness post, and is level with the
ground.



                         BENCH MARK STAMPING:  1136 D 1978
                         DESIGNATION:          872 1136 D TIDAL

MONUMENTATION:           Survey disk                           VM#:         5288
AGENCY:                  Florida Department of Transportation
                         (FLDT)                                IDB PID#:  AQ2615
SETTING CLASSIFICATION:  Concrete abutment wing wall           OPUS PID:        
LATITUDE:   29°  5.0' N (  29.08330)          LONGITUDE:  80° 58.0' W ( -80.96670)


The bench mark is a disk set flush in the bridge abutment wing wall at the SE
end of the northbound lane of the third (southern) bridge over North Turnbull
Bay, 5.79 m (19.0 ft) NE of the centerline of the northbound lane of U.S.
Highway 1, 0.15 m (0.5 ft) NW of the SE end of the northbound bridge, and 0.06 m
(0.2 ft) NE of the NE edge of the concrete railing.

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

                                                                                
Station ID: 8721136                         PUBLICATION DATE:  06/28/2004
Name:       NORTH TURNBULL BAY                                
            FL
NOAA Chart: 11485                           Latitude:   29°  5.0' N (  29.08330)
USGS Quad:  NEW SMYRNA BEACH                Longitude:  80° 58.0' W ( -80.96670)


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


                         BENCH MARK STAMPING:  1136 E 1978
                         DESIGNATION:          872 1136 E TIDAL

MONUMENTATION:           Bench Mark disk                       VM#:         5289
AGENCY:                  Florida Department of Transportation
                         (FLDT)                                IDB PID#:  AQ2616
SETTING CLASSIFICATION:  Concrete abutment wing wall           OPUS PID:        
LATITUDE:   29°  5.0' N (  29.08330)          LONGITUDE:  80° 58.0' W ( -80.96670)


The bench mark is a disk set flush in the bridge abutment wing wall at the SE
end of the third (southern) bridge over North Turnbull Bay, 5.55 m (18.2 ft) NE
of the centerline of the southbound lane of U.S. Highway 1, 0.18 m (0.6 ft) NW
of the SE end of the southbound bridge, 0.15 m (0.5 ft) south of a witness post,
0.06 m (0.2 ft) NE of the NE edge of the concrete guardrail, and 0.46 m (1.5 ft)
above the highway.



                         BENCH MARK STAMPING:  1136 H 1987
                         DESIGNATION:          872 1136 H TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:        16576
AGENCY:                  National Ocean Service (NOS)          IDB PID#:  AQ2697
SETTING CLASSIFICATION:  Stainless steel rod                   OPUS PID:        
LATITUDE:   29°  5.4' N (  29.09000)          LONGITUDE:  80° 58.2' W ( -80.97000)


The bench mark is a disk located 112.78 m (370.0 ft) north of the NE corner of
the northernmost bridge over Spruce Creek, 41.15 m (135.0 ft) south of the
centerline of Harbor Road, 11.46 m (37.6 ft) east of the centerline of the
northbound lane of U.S. Highway 1, 3.44 m (11.3 ft) south of a utility pole,
1.10 m (3.6 ft) NNW of a utility pole guy-wire, and 0.70 m (2.3 ft) WSW of a
witness post.  The bench mark is set 6 cm (0.2 ft) below ground level, crimped
to the top of a stainless steel rod driven 13.4 m (44 ft) to refusal, and
encased in a PVC pipe and concrete kickblock.

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

                                                                                
Station ID: 8721136                         PUBLICATION DATE:  06/28/2004
Name:       NORTH TURNBULL BAY                                
            FL
NOAA Chart: 11485                           Latitude:   29°  5.0' N (  29.08330)
USGS Quad:  NEW SMYRNA BEACH                Longitude:  80° 58.0' W ( -80.96670)


                            T I D A L   D A T U M S 


Tidal datums at NORTH TURNBULL BAY based on:

     LENGTH OF SERIES:      6 MONTHS
     TIME PERIOD:           November 1978 - April 1979
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  8721120 DAYTONA BEACH SHORES


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

     MEAN HIGHER HIGH WATER                     MHHW   =  0.431
     MEAN HIGH WATER                            MHW    =  0.376
     North American Vertical Datum              NAVD88 =  0.361
     MEAN TIDE LEVEL                            MTL    =  0.201
     MEAN SEA LEVEL                             MSL    =  0.195
     MEAN LOW WATER                             MLW    =  0.026
     MEAN LOWER LOW WATER                       MLLW   =  0.000

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     1136 F 1978                                 2.824    2.448
     1136 A 1978 C.L.B.                          1.447    1.071
     1136 B 1978 C.L.B.                          1.541    1.165
     1136 C 1978 C.L.B.                          2.108    1.732
     1136 D 1978                                 2.222    1.846
     1136 E 1978                                 2.203    1.827
     1136 H 1987                                 1.574    1.198


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

                                                                                
Station ID: 8721136                         PUBLICATION DATE:  06/28/2004
Name:       NORTH TURNBULL BAY                                
            FL
NOAA Chart: 11485                           Latitude:   29°  5.0' N (  29.08330)
USGS Quad:  NEW SMYRNA BEACH                Longitude:  80° 58.0' W ( -80.96670)


                             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 8721136 NORTH TURNBULL BAY, FL

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