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Bench Mark Sheet for 9440083, Vancouver WA

Superseded Epoch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Small blue map location marker Unpublished bench mark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: 9440083                                PUBLICATION DATE:  02/13/2012
Name:       VANCOUVER, COLUMBIA RIVER                         
            WASHINGTON
NOAA Chart: 18526                                  Latitude:         45° 37.9' N
USGS Quad:  VANCOUVER                              Longitude:       122° 41.8' W


To reach the bench marks from Interstate 5, take WA-501/Mill Plain Blvd exit 1C,
toward City Center/ Port of Vancouver, proceed west 3.06 km (1.9 miles), turn
left at Port entrance sign on NW 26th St., proceed 0.32 km (0.2 miles) over the
overpass to Port of Vancouver guard gate. Then turn left and proceed to berth
#2099 or bldg. #2025. The bench marks are located around the pier and the
buildings of the Port, the Great Western Malting Company, and the United Grain
Corporation. The tide gauge is located on the pier near berth #2099 and builing
#2025.


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


                 PRIMARY BENCH MARK STAMPING:  0083 D 1991
                         DESIGNATION:          944 0083 D

MONUMENTATION:           Tidal Station disk                        VM#:    16650
AGENCY:                  National Ocean Service (NOS)              PID:         
SETTING CLASSIFICATION:  Concrete footing of water tower


The primary bench mark is a disk set in the eastern-most footing of the water
tower located next to the Great Western Malting Company, 15.85 m (52.0 ft) east
of the eastern corner of #1 Pump House, 14.42 m (47.3 ft) north of the
northern-most set of railroad tracks (2 sets), 11.37 m (37.3 ft) SW of the
centerline of road going to Great Western Malting Company Headquarters, and 0.15
m (0.5 ft) above ground level.



                         BENCH MARK STAMPING:  0083 C 1991
                         DESIGNATION:          944 0083 C

MONUMENTATION:           Tidal Station disk                        VM#:    16649
AGENCY:                  National Ocean Service (NOS)              PID:         
SETTING CLASSIFICATION:  Concrete loading dock


The bench mark is a disk set in the northern corner of building 335, Great
Western Malting Company, on the concrete loading dock, 13.72 m (45.0 ft) west of
a 0.91 m (3.0 ft) round raised cement sewer cover, 2.44 m (8.0 ft) west of the
corner of building 335, 1.83 m (6.0 ft) south of single railroad track, and 0.91
m (3.0 ft) above ground.

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

                                                                                
Station ID: 9440083                                PUBLICATION DATE:  02/13/2012
Name:       VANCOUVER, COLUMBIA RIVER                         
            WASHINGTON
NOAA Chart: 18526                                  Latitude:         45° 37.9' N
USGS Quad:  VANCOUVER                              Longitude:       122° 41.8' W


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


                         BENCH MARK STAMPING:   
                         DESIGNATION:          944 0083 A
                         ALIAS:                UNSTAMPED 1985

MONUMENTATION:           Tidal Station disk                        VM#:    16651
AGENCY:                  City of Vancouver                         PID:         
SETTING CLASSIFICATION:  Pavement


The bench mark is set in concrete among the buildings and elevators of the
United Grain Corporation and the great Western Malting Company, directly behind
three conveyor passages leading from a shoreward grain elevator to a riverside
grain elevator, 22 m (72 ft) SW of a telephone pole which is surrounded by a
protective yellow rail, 6.71 m (22.0 ft) south of the nearest railroad track,
5.18 m (17.0 ft) west of a conveyor support structer and 0.15 m (0.5 ft) below
ground level under a protective iron casting.



                         BENCH MARK STAMPING:  ELEVATION
                         DESIGNATION:          944 0083 ELEVATION

MONUMENTATION:           Bench Mark disk                           VM#:    17896
AGENCY:                                                            PID:         
SETTING CLASSIFICATION:  Concrete foundation


The benchmark is a disk set in the top of a concrete foundation for a large
grain silo, 17.30 m (56.8 ft) south of the southeast corner of Building 1975
(WSDA),  5.00 m (16.4 ft) southwest of telephone/ utility pole, 4.4 m ( 14.4 ft)
east of the yellow post holding the safety chain attached to the silo and
protecting the basement hatch, and 0.30 m (1 ft) above ground of the most
western silo behind Building 1905.  

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

                                                                                
Station ID: 9440083                                PUBLICATION DATE:  02/13/2012
Name:       VANCOUVER, COLUMBIA RIVER                         
            WASHINGTON
NOAA Chart: 18526                                  Latitude:         45° 37.9' N
USGS Quad:  VANCOUVER                              Longitude:       122° 41.8' W


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


                         BENCH MARK STAMPING:  0083 F 2007
                         DESIGNATION:          944 0083 F

MONUMENTATION:           Tidal Station disk                        VM#:    18255
AGENCY:                  National Ocean Service (NOS)              PID:         
SETTING CLASSIFICATION:  Concrete bull rail


The bench mark is set flush in the corner of a concrete bull rail on top of a
concrete pier deck at the port of Vancover berth 1, 15.90 m (52.2 ft) SSE of
light pole no 4, 12.55 m (41.17 ft) north of NE corner of tide equipment
instrument enclosure., 5.50 m (18.0 ft) west of NE most corner of concrete pier
pier deck, 0.30 m (1.0 ft) south of metal stairway, and 0.30 m (1.0 ft) above
pier deck.

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

                                                                                
Station ID: 9440083                                PUBLICATION DATE:  02/13/2012
Name:       VANCOUVER, COLUMBIA RIVER                         
            WASHINGTON
NOAA Chart: 18526                                  Latitude:         45° 37.9' N
USGS Quad:  VANCOUVER                              Longitude:       122° 41.8' W


                            T I D A L   D A T U M S 


Tidal datums at VANCOUVER, COLUMBIA RIVER based on:

     LENGTH OF SERIES:      22 MONTHS
     TIME PERIOD:           September 2002 - October 2007
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  9439040 ASTORIA, TONGUE POINT, COLUMBIA RIVER


Elevations of tidal datums referred to Columbia River Datum (CRD), in METERS:

     MEAN HIGHER HIGH WATER                     MHHW   =  1.447
     MEAN HIGH WATER                            MHW    =  1.282
     MEAN TIDE LEVEL                            MTL    =  0.891
     MEAN SEA LEVEL                             MSL    =  0.861
     MEAN LOW WATER                             MLW    =  0.501
     MEAN LOWER LOW WATER                       MLLW   =  0.431
     a River Datum (CRD)                      Columb =  0.000



Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    CRD         MHW

     0083 D 1991                                 9.470    8.188
     0083 C 1991                                10.066    8.784
     944 0083 A                                  9.375    8.093
     ELEVATION                                   9.817    8.535
     0083 F 2007                                 9.445    8.163


Foot Notes:

Data were collected on Columbia River Datum (CRD).  Datums were computed using
data from three months of lowest river levels, generally the months
August-October over multiple years.  Depending on river flow, water levels can
be significantly higher than Columbia River Datum.

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

                                                                                
Station ID: 9440083                                PUBLICATION DATE:  02/13/2012
Name:       VANCOUVER, COLUMBIA RIVER                         
            WASHINGTON
NOAA Chart: 18526                                  Latitude:         45° 37.9' N
USGS Quad:  VANCOUVER                              Longitude:       122° 41.8' 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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Products available at 9440083 Vancouver, WA

Revised: 10/15/2013
NOAA / National Ocean Service
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