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Bench Mark Sheet for 9751540, REDHOOK BAY, ST THOMAS, USVI VI

Superseded Epoch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Small blue map location marker Unpublished bench mark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.

Error: There is no bench mark map available for 9751540 REDHOOK BAY, ST THOMAS, USVI, VI
Printable version

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
Datums Page                                                        Page  1 of  4

                                                                                
Station ID: 9751540                                PUBLICATION DATE:  05/23/2003
Name:       REDHOOK BAY, ST THOMAS, USVI                      
            VIRGIN ISLANDS
NOAA Chart: 25647                                  Latitude:         18° 19.6' N
USGS Quad:  EASTERN ST THOMAS                      Longitude:        64° 51.1' W


To reach the tidal bench marks from the intersection of Mafolic Road and Sugar
Estate Road (Route 38) in downtown Charlotte Amalie, proceed east on Route 38
(turns into Weymouth Reymer Highway) for 5 km (3 mi) to Turpentine Run Road
(Route 32), then SE on Route 32 for 2 km (1 mi) to Redhook Road (Route 32), then
east on Redhook Road for 2.4 km (1.5 mi) to the entrance to National Park
Service (NPS) Redhook Bay Park, continue into the park for 0.8 km (0.5 mi) to
NPS Redhook Bay Visitors Station.  The bench marks are near the visitors
station.  The tide gage and staff were located on the NPS pier.


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


                 PRIMARY BENCH MARK STAMPING:  NO 1 1973
                         DESIGNATION:          975 1540 TIDAL 1

MONUMENTATION:           Tidal Station disk                        VM#:     7933
AGENCY:                  US Coast and Geodetic Survey (USC&GS)     PID:         
SETTING CLASSIFICATION:  Concrete foundation


The primary bench mark is a disk set flush in the center of the concrete
foundation of the NPS antenna tower, and 6.61 m (21.7 ft) west of the SW corner
of the NPS Visitors Station building.



                         BENCH MARK STAMPING:  NO 2 1973
                         DESIGNATION:          975 1540 TIDAL 2

MONUMENTATION:           Tidal Station disk                        VM#:     7934
AGENCY:                  US Coast and Geodetic Survey (USC&GS)     PID:         
SETTING CLASSIFICATION:  Concrete foundation


The bench mark is a disk set flush in the concrete foundation on the south side
of the NPS Visitors Station building, and 11 m (37 ft) east of the south
entrance to the building.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  2 of  4

                                                                                
Station ID: 9751540                                PUBLICATION DATE:  05/23/2003
Name:       REDHOOK BAY, ST THOMAS, USVI                      
            VIRGIN ISLANDS
NOAA Chart: 25647                                  Latitude:         18° 19.6' N
USGS Quad:  EASTERN ST THOMAS                      Longitude:        64° 51.1' W


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


                         BENCH MARK STAMPING:  NO 3 1973
                         DESIGNATION:          975 1540 TIDAL 3

MONUMENTATION:           Tidal Station disk                        VM#:     7935
AGENCY:                  US Coast and Geodetic Survey (USC&GS)     PID:         
SETTING CLASSIFICATION:  Concrete footing


The bench mark is a disk set flush in the concrete footing on the NW corner of
the NPS headquarters office building, and 10 m (34 ft) from the entrance to the
building.



                         BENCH MARK STAMPING:  USDI 1 ELEV 2.82 NPS
                         DESIGNATION:          975 1540 USDI 1 ELEV 2.82

MONUMENTATION:           Survey disk                               VM#:     7936
AGENCY:                  National Park Service (NPS)               PID:         
SETTING CLASSIFICATION:  Concrete bulkhead foundation


The bench mark is a disk set flush in the NE corner of the concrete bulkhead
foundation, 12 m (39 ft) NE of the NE corner of the NPS Visitors Station
building, and 0.3 m (1 ft) SW of the NE corner.



                         BENCH MARK STAMPING:  USDI 2 ELEV 2.85 NPS
                         DESIGNATION:          975 1540 USDI 2 ELEV 2.85

MONUMENTATION:           Survey disk                               VM#:     7937
AGENCY:                  National Park Service (NPS)               PID:         
SETTING CLASSIFICATION:  Concrete bulkhead foundation


The bench mark is a disk set flush in the concrete bulkhead foundation, 10.82 m
(35.5 ft) NE of the NW bulkhead corner, and 1 m (4 ft) SW of the foot of the
pier.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  3 of  4

                                                                                
Station ID: 9751540                                PUBLICATION DATE:  05/23/2003
Name:       REDHOOK BAY, ST THOMAS, USVI                      
            VIRGIN ISLANDS
NOAA Chart: 25647                                  Latitude:         18° 19.6' N
USGS Quad:  EASTERN ST THOMAS                      Longitude:        64° 51.1' W


                            T I D A L   D A T U M S 


Tidal datums at REDHOOK BAY, ST THOMAS, USVI based on:

     LENGTH OF SERIES:      2 MONTHS
     TIME PERIOD:           February 1975 - March 1975
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  9751639 CHARLOTTE AMALIE, ST. THOMAS


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

     MEAN HIGHER HIGH WATER                     MHHW   =  0.332
     MEAN HIGH WATER                            MHW    =  0.288
     MEAN TIDE LEVEL                            MTL    =  0.164
     MEAN SEA LEVEL                             MSL    =  0.158
     MEAN LOW WATER                             MLW    =  0.039
     MEAN LOWER LOW WATER                       MLLW   =  0.000



Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     NO 1 1973                                   1.050    0.762
     NO 2 1973                                   0.991    0.703
     NO 3 1973                                   2.295    2.007
     USDI 1 ELEV 2.82 NPS                        0.905    0.617
     USDI 2 ELEV 2.85 NPS                        0.913    0.625


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

                                                                                
Station ID: 9751540                                PUBLICATION DATE:  05/23/2003
Name:       REDHOOK BAY, ST THOMAS, USVI                      
            VIRGIN ISLANDS
NOAA Chart: 25647                                  Latitude:         18° 19.6' N
USGS Quad:  EASTERN ST THOMAS                      Longitude:        64° 51.1' W


                             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 any other fixed island datum.

This tide station location has a local island datum.  Island datums
are specific fixed geodetic datums whose elevation relationship 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.

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Products available at 9751540 REDHOOK BAY, ST THOMAS, USVI, VI

Revised: 10/15/2013
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services