Bench Mark Sheet for 8721533, ORSINO (NASA) CAUSEWAY 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Superseded Epoch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Small blue map location marker Unpublished bench mark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: 8721533                         PUBLICATION DATE:  02/07/2005
Name:       ORSINO (NASA) CAUSEWAY                            
            FL
NOAA Chart: 11484                           Latitude:   28° 30.8' N (  28.51330)
USGS Quad:  False Cape                      Longitude:  80° 36.7' W ( -80.61170)


To reach the tidal bench marks from the intersection of NASA Causeway (Orsino
Road) and State Highway A1A in Orsino, proceed east on NASA Causeway for 5.6 km
(3.5 mi) to the bridge over the Banana River.  The bench marks are located on
the causeway at the west end of the bridge.  The tide gage and staff were
located on the outside of the west fender on the south side of the bridge.


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


                 PRIMARY BENCH MARK STAMPING:  G 193 1964
                         DESIGNATION:          872 1533 G 193 1964

MONUMENTATION:           Survey disk                           VM#:         5336
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  AK1313
SETTING CLASSIFICATION:  Concrete curb                         OPUS PID:        
LATITUDE:   28° 30.8' N (  28.51330)          LONGITUDE:  80° 36.7' W ( -80.61170)


The primary bench mark is a disk set in the top of the NW end of the NE curb of
NASA Causeway, 4.57 m (15.0 ft) NE of the centerline of the bridge, 2.23 m (7.3
ft) SE of the NW end of the curb, and 0.3 m (1 ft) above the level of the
highway.

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

                                                                                
Station ID: 8721533                         PUBLICATION DATE:  02/07/2005
Name:       ORSINO (NASA) CAUSEWAY                            
            FL
NOAA Chart: 11484                           Latitude:   28° 30.8' N (  28.51330)
USGS Quad:  False Cape                      Longitude:  80° 36.7' W ( -80.61170)


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


                         BENCH MARK STAMPING:  J 215 1965
                         DESIGNATION:          872 1533 J 215 1965

MONUMENTATION:           Survey disk                           VM#:         5337
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  AK1309
SETTING CLASSIFICATION:  Concrete curb                         OPUS PID#: AK1309
LATITUDE:   28° 30.8' N (  28.51330)          LONGITUDE:  80° 36.7' W ( -80.61170)


The bench mark is a disk set in the top of a concrete curb, for a drainage
ditch, 73 m (240 ft) NW of the NW end of the bridge over the Banana River, 7.99
m (26.2 ft) north of power pole B 95, 6.10 m (20.0 ft) SW of the centerline of
the causeway, and level with the highway.



                         BENCH MARK STAMPING:  K 215 1965
                         DESIGNATION:          872 1533 K 215 1965

MONUMENTATION:           Survey disk                           VM#:         5338
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  AK1311
SETTING CLASSIFICATION:  Concrete step                         OPUS PID:        
LATITUDE:   28° 30.8' N (  28.51330)          LONGITUDE:  80° 36.7' W ( -80.61170)


The bench mark is a disk set on top of a concrete step to pumphouse #M 7-1098,
60 m (197 ft) north of the NW corner of the bridge over the Banana River, 29.81
m (97.8 ft) NE of the centerline of the causeway, 4.69 m (15.4 ft) SE of Bench
Mark NO 2 1969, and level with the highway.

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

                                                                                
Station ID: 8721533                         PUBLICATION DATE:  02/07/2005
Name:       ORSINO (NASA) CAUSEWAY                            
            FL
NOAA Chart: 11484                           Latitude:   28° 30.8' N (  28.51330)
USGS Quad:  False Cape                      Longitude:  80° 36.7' W ( -80.61170)


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


                         BENCH MARK STAMPING:  NO 1 1969
                         DESIGNATION:          872 1533 NO 1 1969

MONUMENTATION:           Survey disk                           VM#:         5339
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  AK1310
SETTING CLASSIFICATION:  Concrete base                         OPUS PID#: AK1310
LATITUDE:   28° 30.8' N (  28.51330)          LONGITUDE:  80° 36.7' W ( -80.61170)


The bench mark is a disk set on top of the SW corner of the concrete base which
supports a large power transformer, 30.02 m (98.5 ft) west of the NW end of the
bridge over the Banana River, 13.50 m (44.3 ft) SW of the centerline of the
causeway, 5.58 m (18.3 ft) SW of the power pole B96, and 0.61 m (2.0 ft) below
the level of the highway.



                         BENCH MARK STAMPING:  NO 2 1969
                         DESIGNATION:          872 1533 NO 2 1969

MONUMENTATION:           Survey disk                           VM#:         5340
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  AK1308
SETTING CLASSIFICATION:  Concrete retaining wall               OPUS PID#: AK1308
LATITUDE:   28° 30.8' N (  28.51330)          LONGITUDE:  80° 36.7' W ( -80.61170)


The bench mark is a disk set on top of a concrete retaining wall around three
pumps, 64.62 m (212.0 ft) north of the NW corner of the bridge over the Banana
River, 29.81 m (97.8 ft) NE of the centerline of the causeway, 1.74 m (5.7 ft)
west of the west corner of pumphouse #M 7-1098, and level with the highway.

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

                                                                                
Station ID: 8721533                         PUBLICATION DATE:  02/07/2005
Name:       ORSINO (NASA) CAUSEWAY                            
            FL
NOAA Chart: 11484                           Latitude:   28° 30.8' N (  28.51330)
USGS Quad:  False Cape                      Longitude:  80° 36.7' W ( -80.61170)


                            T I D A L   D A T U M S 


Tidal datums at ORSINO (NASA) CAUSEWAY based on:

     LENGTH OF SERIES:      6 MONTHS
     TIME PERIOD:           June 1970 - November 1970
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  8723170 MIAMI BEACH (CITY PIER)


Elevations of tidal datums referred to Mean Sea Level (MSL), in METERS:

     North American Vertical Datum              NAVD88 =  0.210
     MEAN SEA LEVEL                             MSL    =  0.000

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                                MSL

     G 193 1964                                           4.528
     J 215 1965                                           2.181
     K 215 1965                                           2.405
     NO 1 1969                                            2.584
     NO 2 1969                                            2.229


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

                                                                                
Station ID: 8721533                         PUBLICATION DATE:  02/07/2005
Name:       ORSINO (NASA) CAUSEWAY                            
            FL
NOAA Chart: 11484                           Latitude:   28° 30.8' N (  28.51330)
USGS Quad:  False Cape                      Longitude:  80° 36.7' W ( -80.61170)


                             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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