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Bench Mark Sheet for 8639207, 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Superseded Epoch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Small blue map location marker Unpublished bench mark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.

Error: There is no bench mark map available for 8639207 Rudee Inlet, VA
Printable version

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
Datums Page                                                        Page  1 of  5

                                                                                
Station ID: 8639207                                PUBLICATION DATE:  08/11/2011
Name:       INSIDE CHANNEL, RUDEE INLET                       
            VIRGINIA
NOAA Chart: 12207                                  Latitude:         36° 49.9' N
USGS Quad:  VIRGINIA BEACH                         Longitude:        75° 58.4' W


To reach the tidal bench marks from the intersection of 22nd Street and Pacific,
follow Pacific south towards the Rudee Inlet bridge for 1.9 km (1.2 mi), and
just before the bridge turn right on Winston Salem Avenue.  The Virginia Beach
Fishing Center is located on the left at 200 Winston Salem Avenue.  The bench
marks are in the vicinity of the fishing center and extend to the south section
of the boardwalk.  The tide gage and staff were located in the SE corner of the
Fishing Center.


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


                 PRIMARY BENCH MARK STAMPING:  9207 C 1984
                         DESIGNATION:          863 9207 C

MONUMENTATION:           Tidal Station disk                        VM#:     3505
AGENCY:                  National Ocean Service (NOS)              PID:         
SETTING CLASSIFICATION:  Bridge pier base


The primary bench mark is a disk set in the northernmost pillar base underneath
the bridge, 2.01 m (6.6 ft) WSW of the pillar center, 1.71 m (5.6 ft) ENE of the
west pillar, 1.40 m (4.6 ft) south of the north pillar, and 1.31 m (4.3 ft)
north of the south pillar.



                         BENCH MARK STAMPING:  E 311 1952

MONUMENTATION:           Bench Mark disk                           VM#:     3501
AGENCY:                  US Coast and Geodetic Survey (USC&GS)     PID#:  FW0083
SETTING CLASSIFICATION:  Concrete curb


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

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

                                                                                
Station ID: 8639207                                PUBLICATION DATE:  08/11/2011
Name:       INSIDE CHANNEL, RUDEE INLET                       
            VIRGINIA
NOAA Chart: 12207                                  Latitude:         36° 49.9' N
USGS Quad:  VIRGINIA BEACH                         Longitude:        75° 58.4' W


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


                         BENCH MARK STAMPING:  9207 B 1984
                         DESIGNATION:          863 9207 B

MONUMENTATION:           Tidal Station disk                        VM#:     3506
AGENCY:                  National Ocean Service (NOS)              PID:         
SETTING CLASSIFICATION:  Concrete monument


The bench mark is a disk set in a concrete monument located near the NW corner
of the Virginia Beach Fishing Center, at the edge of a small grass hill on the
back side of the building, 9.75 m (32.0 ft) north of a wooden shed connected to
the main building, 4.82 m (15.8 ft) SE of power pole # O46, 4.57 m (15.0 ft)
east of the parking area, 2.0 m (6.6 ft) west of the NW corner of the building,
and 0.03 m (0.1 ft) below the ground.



                         BENCH MARK STAMPING:  9207 D 1995
                         DESIGNATION:          863 9207 D

MONUMENTATION:           Tidal Station disk                        VM#:    17871
AGENCY:                  National Ocean Service (NOS)              PID:         
SETTING CLASSIFICATION:  Concrete pad


The bench mark is a disk set flush in a concrete base of a light pole #6,
located 9.39 m (30.8 ft) SW of the center of Winston Salem Avenue, 3.4 m (11.2
ft) NE of the NE corner of a concrete fuel pad, 0.18 m (0.6 ft) west of the east
edge of the concrete, and 0.91 m (3.0 ft) above the pavement.

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

                                                                                
Station ID: 8639207                                PUBLICATION DATE:  08/11/2011
Name:       INSIDE CHANNEL, RUDEE INLET                       
            VIRGINIA
NOAA Chart: 12207                                  Latitude:         36° 49.9' N
USGS Quad:  VIRGINIA BEACH                         Longitude:        75° 58.4' W


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


                         BENCH MARK STAMPING:  9207 E 1995
                         DESIGNATION:          863 9207 E

MONUMENTATION:           Tidal Station disk                        VM#:    17872
AGENCY:                  National Ocean Service (NOS)              PID:         
SETTING CLASSIFICATION:  Concrete base


The bench mark is a disk set in the top of a round concrete base for a light #2,
located on the north side of the parking lot, 29.10 m (95.5 ft) east of Winston
Salem Avenue, 21.50 m (70.5 ft) west of power pole No.VP0008 with transformers,
1.60 m (5.2 ft) SW of a chain link fence, and 0.90 m (3.0 ft) above the
pavement.



                         BENCH MARK STAMPING:  B/L STA

MONUMENTATION:           Bench Mark disk                           VM#:    18002
AGENCY:                  US Corp of Engineers (COE)                PID:         
SETTING CLASSIFICATION:  Boardwalk


The bench mark is a disk set flush in the eastern jut of the Virginia Beach
boardwalk located at the most southern end, 8.69 m (28.5 ft) north of the
southern most edge of the boardwalk, 7.01 m (23.0 ft) ESE of the stairs leading
to the beach, and 1.71 m (5.6 ft) SW of the NE rounded corner of the boardwalk. 

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

                                                                                
Station ID: 8639207                                PUBLICATION DATE:  08/11/2011
Name:       INSIDE CHANNEL, RUDEE INLET                       
            VIRGINIA
NOAA Chart: 12207                                  Latitude:         36° 49.9' N
USGS Quad:  VIRGINIA BEACH                         Longitude:        75° 58.4' W


                            T I D A L   D A T U M S 


Tidal datums at INSIDE CHANNEL, RUDEE INLET based on:

     LENGTH OF SERIES:      2 YEARS
     TIME PERIOD:           December 2005 - November 2007
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  8651370 DUCK, FRF PIER


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

     HIGHEST OBSERVED WATER LEVEL (11/22/2006)         =  2.231
     MEAN HIGHER HIGH WATER                     MHHW   =  1.131
     MEAN HIGH WATER                            MHW    =  1.043
     MEAN SEA LEVEL                             MSL    =  0.547
     MEAN TIDE LEVEL                            MTL    =  0.542
     MEAN LOW WATER                             MLW    =  0.040
     MEAN LOWER LOW WATER                       MLLW   =  0.000
     LOWEST  OBSERVED WATER LEVEL (03/09/2008)         = -0.643

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     9207 C 1984                                 1.668    0.625
     E 311 1952                                  3.253    2.210
     9207 B 1984                                 3.008    1.965
     9207 D 1995                                 3.204    2.161
     9207 E 1995                                 3.254    2.211
     B/L STA                                     4.449    3.406


Foot Notes:

Bench marks B/L STA and E 311 1952 are based on one differential leveling
connection and do not meet the quality control standards of the NOS.  Therefore,
caution should be used when deriving elevations for these marks. 

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

                                                                                
Station ID: 8639207                                PUBLICATION DATE:  08/11/2011
Name:       INSIDE CHANNEL, RUDEE INLET                       
            VIRGINIA
NOAA Chart: 12207                                  Latitude:         36° 49.9' N
USGS Quad:  VIRGINIA BEACH                         Longitude:        75° 58.4' 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 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 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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Revised: 10/15/2013
NOAA / National Ocean Service
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