Bench Mark Sheet for 8639208, VIRGINIA BEACH, RUDEE INLET VA

Superseded Epoch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Small blue map location marker Unpublished bench mark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: 8639208                         PUBLICATION DATE:  08/03/2004
Name:       VIRGINIA BEACH, RUDEE INLET                       
            VA
NOAA Chart: 12207                           Latitude:   36° 49.9' N (  36.83170)
USGS Quad:  VIRGINA BEACH                   Longitude:  75° 58.1' W ( -75.96830)


To reach the tidal bench marks from the main post office in Virginia Beach at
24th Street and Atlantic Avenue, proceed south on Atlantic Avenue for 2.4 km
(1.5 mi) to the Virginia Beach Steel Pier just north of Rudee Inlet.  The bench
marks are east of Atlantic Avenue between 15th Street and the pier.  The tide
station was at the offshore end on the south side of the pier.


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


                 PRIMARY BENCH MARK STAMPING:  NO 4 1960
                         DESIGNATION:          863 9208 TIDAL 4

MONUMENTATION:           Tidal Station disk                    VM#:         3509
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:        
SETTING CLASSIFICATION:  Concrete sea wall                     OPUS PID:        
LATITUDE:   36° 49.9' N (  36.83170)          LONGITUDE:  75° 58.1' W ( -75.96830)


The primary bench mark is a disk set in a concrete seawall in the center of a
set of steps leading down to the beach at the end of 8th Street, 30.39 m (99.7
ft) SE of the SE corner of a red brick motel, and 7.62 m (25.0 ft) east of a
lamp pole.

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

                                                                                
Station ID: 8639208                         PUBLICATION DATE:  08/03/2004
Name:       VIRGINIA BEACH, RUDEE INLET                       
            VA
NOAA Chart: 12207                           Latitude:   36° 49.9' N (  36.83170)
USGS Quad:  VIRGINA BEACH                   Longitude:  75° 58.1' W ( -75.96830)


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


                         BENCH MARK STAMPING:  NO 1 1951
                         DESIGNATION:          863 9208 TIDAL 1

MONUMENTATION:           Tidal Station disk                    VM#:         3507
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  FW0110
SETTING CLASSIFICATION:  Concrete Monument                     OPUS PID:        
LATITUDE:   36° 50.5' N (  36.84170)          LONGITUDE:  75° 58.4' W ( -75.97330)


The bench mark is a disk set flush in the top of a concrete cap rail on the sea
wall just south of a wooden fishing pier, 33.99 m (111.5 ft) NE of the NE corner
of the brick porch of Casino Bath House, 31.46 m (103.2 ft) SE of the SE corner
of Casino Dancing Hall, 7 m (22 ft) south of the centerline of the fishing pier,
2 m (6 ft) north of the north edge of the concrete steps to the beach, and 0.15
m (0.5 ft) west of the face of the cap rail.



                         BENCH MARK STAMPING:  E 311 1952
                         DESIGNATION:          863 9208 E 311

MONUMENTATION:           Bench Mark disk                       VM#:         3508
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:  FW0083
SETTING CLASSIFICATION:  Concrete curb                         OPUS PID:        
LATITUDE:   36° 50.2' N (  36.83670)          LONGITUDE:  75° 58.3' W ( -75.97170)


The bench mark is a disk set in the top of the west end of a concrete curb on
top of a steel piling at the south end of the sea wall, 34 m (110 ft) east of
the east curb of Atlantic Avenue, 25 m (81 ft) west of the SE corner of the sea
wall and in line with the north curb of 7th Street, 0.3 m (1 ft) east of the
west end of the curb.

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

                                                                                
Station ID: 8639208                         PUBLICATION DATE:  08/03/2004
Name:       VIRGINIA BEACH, RUDEE INLET                       
            VA
NOAA Chart: 12207                           Latitude:   36° 49.9' N (  36.83170)
USGS Quad:  VIRGINA BEACH                   Longitude:  75° 58.1' W ( -75.96830)


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


                         BENCH MARK STAMPING:  NO 5 1960
                         DESIGNATION:          863 9208 TIDAL 5

MONUMENTATION:           Tidal Station disk                    VM#:         3510
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:        
SETTING CLASSIFICATION:  Concrete walkway                      OPUS PID:        
LATITUDE:   36° 49.9' N (  36.83170)          LONGITUDE:  75° 58.1' W ( -75.96830)


The bench mark is a disk set in the top of a concrete walkway between the office
and east wing of Holiday Sands Motel, on the south side of the building, and
18.71 m (61.4 ft) east of the east edge of the curb of Atlantic Avenue.



                         BENCH MARK STAMPING:  NO 6 1975
                         DESIGNATION:          863 9208 TIDAL 6

MONUMENTATION:           Tidal Station disk                    VM#:         3511
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:        
SETTING CLASSIFICATION:  Concrete bulkhead                     OPUS PID:        
LATITUDE:   36° 49.9' N (  36.83170)          LONGITUDE:  75° 58.1' W ( -75.96830)


The bench mark is a disk set flush in a concrete bulkhead in the SE corner of
the concrete boardwalk at the bench, 12 m (40 ft) east of the SE corner of
Schooner Motor Inn, 2 m (8 ft) south of the second concrete rail support, 0.67 m
(2.2 ft) north of the south edge of the boardwalk, and 1 m (2 ft) west of the
east edge of the boardwalk.

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

                                                                                
Station ID: 8639208                         PUBLICATION DATE:  08/03/2004
Name:       VIRGINIA BEACH, RUDEE INLET                       
            VA
NOAA Chart: 12207                           Latitude:   36° 49.9' N (  36.83170)
USGS Quad:  VIRGINA BEACH                   Longitude:  75° 58.1' W ( -75.96830)


                            T I D A L   D A T U M S 


Tidal datums at VIRGINIA BEACH, RUDEE INLET based on:

     LENGTH OF SERIES:      2 MONTHS
     TIME PERIOD:           September 1975 - October 1975
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  8638610 SEWELLS POINT, HAMPTON ROADS


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

     MEAN HIGHER HIGH WATER                     MHHW   =  1.124
     MEAN HIGH WATER                            MHW    =  1.038
     North American Vertical Datum              NAVD88 =  0.757
     MEAN SEA LEVEL                             MSL    =  0.551
     MEAN TIDE LEVEL                            MTL    =  0.538
     MEAN LOW WATER                             MLW    =  0.037
     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 4 1960                                   3.918    2.880
     NO 1 1951                                   3.976    2.938
     E 311 1952                                  4.029    2.991
     NO 5 1960                                   4.950    3.912
     NO 6 1975                                   3.802    2.764


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

                                                                                
Station ID: 8639208                         PUBLICATION DATE:  08/03/2004
Name:       VIRGINIA BEACH, RUDEE INLET                       
            VA
NOAA Chart: 12207                           Latitude:   36° 49.9' N (  36.83170)
USGS Quad:  VIRGINA BEACH                   Longitude:  75° 58.1' W ( -75.96830)


                             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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