Bench Mark Sheet for 8720782, Sutherlands Still 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Superseded Epoch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Small blue map location marker Unpublished bench mark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: 8720782                         PUBLICATION DATE:  12/10/2004
Name:       SUTHERLANDS STILL, DUNNS CREEK                    
            FL
NOAA Chart: 11492                           Latitude:   29° 34.3' N (  29.57170)
USGS Quad:  SAN MATEO                       Longitude:  81° 36.4' W ( -81.60670)


To reach the bench marks from the intersection of State Road 207 and US Route
17, proceed 7.92 km (4.9 mi) south on US 17 to its intersection with Horse
Landing Road, then turn left and proceed SSW on Horse Landing Road for 1.6 km
(1.0 mi), then turn right and proceed west on Fisherman Road for 0.89 km (0.55
mi), then turn left on to Paradise Point Road and proceed south for 0.3 km (0.2
mi) to Paradise Circle.  The bench marks are in the vicinity of Horse Landing
Road, Fishermans Road, and Paradise Point Road.  The tide station was located on
the north shore of Dunns Creek, on the SE corner of the wooden dock behind the
mobile home residence of Mrs. Robert Anderson.


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


                 PRIMARY BENCH MARK STAMPING:  0782 A 1978 C.L.B.
                         DESIGNATION:          872 0782 A TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:        10735
AGENCY:                  Florida Department of Natural Resources
                         (FLDNR)                               IDB PID#:  AQ1754
SETTING CLASSIFICATION:  Concrete monument                     OPUS PID:        
LATITUDE:   29° 34.2' N (  29.57000)          LONGITUDE:  81° 36.4' W ( -81.60670)


The primary bench mark is a disk set in a concrete monument located just south
of Paradise Circle, 26 m (84 ft) north of the centerline of a driveway, 19.72 m
(64.7 ft) east of the NE corner of the Anderson residence, 7 m (24 ft) west of
the centerline of Paradise Circle, 0.85 m (2.8 ft) east of a utility pole, 0.6 m
(2 ft) east of a witness post, and 0.3 m (1 ft) below ground level.

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

                                                                                
Station ID: 8720782                         PUBLICATION DATE:  12/10/2004
Name:       SUTHERLANDS STILL, DUNNS CREEK                    
            FL
NOAA Chart: 11492                           Latitude:   29° 34.3' N (  29.57170)
USGS Quad:  SAN MATEO                       Longitude:  81° 36.4' W ( -81.60670)


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


                         BENCH MARK STAMPING:  0782 B 1978 C.L.B.
                         DESIGNATION:          872 0782 B TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:        10736
AGENCY:                  Florida Department of Natural Resources
                         (FLDNR)                               IDB PID#:  AQ1753
SETTING CLASSIFICATION:  Concrete monument                     OPUS PID:        
LATITUDE:   29° 34.4' N (  29.57330)          LONGITUDE:  81° 36.3' W ( -81.60500)


The bench mark is a disk set in a concrete monument located by a curve on
Paradise Point Road, just NE of Paradise Circle,  0.24 km (0.15 mi) south of
Fishermans Road, 9 m (29 ft) SE of the centerline of Paradise Point Road, 2.07 m
(6.8 ft) west of the anchor for a guy wire support, 0.91 m (3.0 ft) east of
utility pole # 3-41305683-0-3, and 0.30 m (1.0 ft) north of a witness post.



                         BENCH MARK STAMPING:  0782 C 1978 C.L.B.
                         DESIGNATION:          872 0782 C TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:        10737
AGENCY:                  Florida Department of Natural Resources
                         (FLDNR)                               IDB PID#:  AQ1752
SETTING CLASSIFICATION:  Concrete monument                     OPUS PID:        
LATITUDE:   29° 34.5' N (  29.57500)          LONGITUDE:  81° 36.2' W ( -81.60330)


The bench mark is a disk set in a concrete monument located at the SW corner of
the intersection of Fisherman Road and Horse Landing Road, 8.99 m (29.5 ft)
south of the centerline of Fishermans Road, 6.34 m (20.8 ft) west of the
centerline of a private road at the end of Horse Landing Road, 1.83 m (6.0 ft)
SE of power pole number 3-4130-5683-0-3, 1.65 m (5.4 ft) north of a 1 m (3 ft)
tall wooden fence, 1.04 m (3.4 ft) SE of a utility pole, 0.30 m (1.0 ft) north
of a witness post, and 6 cm (0.2 ft) below ground level.

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

                                                                                
Station ID: 8720782                         PUBLICATION DATE:  12/10/2004
Name:       SUTHERLANDS STILL, DUNNS CREEK                    
            FL
NOAA Chart: 11492                           Latitude:   29° 34.3' N (  29.57170)
USGS Quad:  SAN MATEO                       Longitude:  81° 36.4' W ( -81.60670)


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


                         BENCH MARK STAMPING:  STILL 1935
                         DESIGNATION:          STILL

MONUMENTATION:           Triangulation Station disk            VM#:        10738
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  AQ1750
SETTING CLASSIFICATION:  Concrete monument                     OPUS PID:        
LATITUDE:   29° 34.4' N (  29.57330)          LONGITUDE:  81° 36.2' W ( -81.60330)


The bench mark is a disk set in the top of a square concrete monument on the
north bank of Dunns Creek, 0.2 km (0.1 mi) south along a private drive from
bench mark 0782 C 1978 C.L.B., 30 m (97 ft) ENE of the NE corner of a swimming
pool, 15 m (50 ft) NW of a 48 inch diameter oak tree, 7 m (24 ft) SE of the SW
corner of the white house, 6.71 m (22.0 ft) east of an 18 inch diameter gum
tree, 6 m (19 ft) SW of the SE corner of the white house, and 6 cm (0.2 ft)
above ground.

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

                                                                                
Station ID: 8720782                         PUBLICATION DATE:  12/10/2004
Name:       SUTHERLANDS STILL, DUNNS CREEK                    
            FL
NOAA Chart: 11492                           Latitude:   29° 34.3' N (  29.57170)
USGS Quad:  SAN MATEO                       Longitude:  81° 36.4' W ( -81.60670)


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


                         BENCH MARK STAMPING:  STILL NO 2 1935
                         DESIGNATION:          STILL RM 2

MONUMENTATION:           Reference Mark disk                   VM#:        10739
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  AQ1751
SETTING CLASSIFICATION:  Concrete monument                     OPUS PID:        
LATITUDE:   29° 34.4' N (  29.57330)          LONGITUDE:  81° 36.2' W ( -81.60330)


The bench mark is a disk set in the top of a square concrete monument located on
the east side of the driveway to a white house, near the southern end of Horse
Landing Road, 17 m (57 ft) NNE of the NE corner of the white house, 5 m (15 ft)
north of the north wall of the metal garage building, 3.20 m (10.5 ft) east of a
brick outdoor fireplace, and 0.21 m (0.7 ft) above ground.

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

                                                                                
Station ID: 8720782                         PUBLICATION DATE:  12/10/2004
Name:       SUTHERLANDS STILL, DUNNS CREEK                    
            FL
NOAA Chart: 11492                           Latitude:   29° 34.3' N (  29.57170)
USGS Quad:  SAN MATEO                       Longitude:  81° 36.4' W ( -81.60670)


                            T I D A L   D A T U M S 


Tidal datums at SUTHERLANDS STILL, DUNNS CREEK based on:

     LENGTH OF SERIES:      5 MONTHS
     TIME PERIOD:           November 1978 - March 1979
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  8720496 GREEN COVE SPRINGS, ST. JOHNS R.


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

     MEAN HIGHER HIGH WATER                     MHHW   =  0.286
     MEAN HIGH WATER                            MHW    =  0.266
     North American Vertical Datum              NAVD88 =  0.150
     MEAN SEA LEVEL                             MSL    =  0.141
     MEAN TIDE LEVEL                            MTL    =  0.138
     MEAN LOW WATER                             MLW    =  0.010
     MEAN LOWER LOW WATER                       MLLW   =  0.000

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     0782 A 1978 C.L.B.                          0.509    0.243
     0782 B 1978 C.L.B.                          1.407    1.141
     0782 C 1978 C.L.B.                          3.016    2.750
     STILL 1935                                  2.414    2.148
     STILL NO 2 1935                             2.863    2.597


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

                                                                                
Station ID: 8720782                         PUBLICATION DATE:  12/10/2004
Name:       SUTHERLANDS STILL, DUNNS CREEK                    
            FL
NOAA Chart: 11492                           Latitude:   29° 34.3' N (  29.57170)
USGS Quad:  SAN MATEO                       Longitude:  81° 36.4' W ( -81.60670)


                             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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