NOAA Web Site Link Tides and Currents Home Page Transparent placeholder image

Bench Mark Sheet for 9445272, QUILCENE, DABOB BAY, HOOD CANAL 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Superseded Epoch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Small blue map location marker Unpublished bench mark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: 9445272                         PUBLICATION DATE:  04/21/2003
Name:       QUILCENE, DABOB BAY, HOOD CANAL                   
            WA
NOAA Chart: 18458                           Latitude:   47° 48.0' N (  47.80000)
USGS Quad:  QUILCENE                        Longitude: 122° 51.5' W (-122.85800)


To reach the tide station from the intersection of Highways #104 and #101, go
south on #101 for  about 62 m (203 feet) and turn east on Linger Longer Road,
then proceed for 2.4 km (1.5 miles) to the end of the road to the Quilcene Small
Boat Harbor, the tide station is located on the convience area of the harbor,
and the bench marks are located in the vicinity.


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


                 PRIMARY BENCH MARK STAMPING:  5272 B 1995
                         DESIGNATION:          944 5272 B

MONUMENTATION:           Tidal Station disk                    VM#:         7839
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Copper-clad steel rod                 OPUS PID:        
LATITUDE:   47° 48.0' N (  47.80000)          LONGITUDE: 122° 51.5' W (-122.85800)


The primary bench mark is a disk crimped to the top of a 9/16 in stainless steel
rod, located in a park directly across the street from the Small Boat Harbor,
27.9 m (91.5 feet) NW of the top of the concrete Small Boat Ramp, 15.0 m (49.2
feet) SE of the SE corner of the harbormaster's office, 1.9 m (6.2 feet) SW of a
two feet high 8 in x 10 in corner post for a wooden fence in which a witness
post sign is attached.  The bench mark is crimped to the top of a 9/16 in
stainless steel rod driven 11.0 m (36.0 feet), the top 0.9 m (3 feet) is sleeved
with a plastic tube filled with grease, and enclosed by an aluminum standard NGS
access cover which is flush with ground level.

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

                                                                                
Station ID: 9445272                         PUBLICATION DATE:  04/21/2003
Name:       QUILCENE, DABOB BAY, HOOD CANAL                   
            WA
NOAA Chart: 18458                           Latitude:   47° 48.0' N (  47.80000)
USGS Quad:  QUILCENE                        Longitude: 122° 51.5' W (-122.85800)


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


                         BENCH MARK STAMPING:  5272 A 1995
                         DESIGNATION:          944 5272 A

MONUMENTATION:           Tidal Station disk                    VM#:         8462
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:        
SETTING CLASSIFICATION:  Concrete wall                         OPUS PID:        
LATITUDE:   47° 48.0' N (  47.80000)          LONGITUDE: 122° 51.5' W (-122.85800)


The bench mark is a disk set in a 0.3 m (1 foot) wide concrete wall that forms
the south side of the small boat ramp and is located 13.1 m (43.0 feet) from the
shoreward end of the small boat ramp, 11.6 m (38.0 feet) SE of the SE corner of
the Environmental Center Building, 3.8 m (12.5 feet) east of the west end of the
wall, and 1.2 m (3.9 feet) above the concrete ramp.



                         BENCH MARK STAMPING:  5272 C 1995
                         DESIGNATION:          944 5272 C

MONUMENTATION:           Tidal Station disk                    VM#:         8463
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Concrete foundation                   OPUS PID:        
LATITUDE:   47° 48.0' N (  47.80000)          LONGITUDE: 122° 51.5' W (-122.85800)


The bench mark is a disk set in a 9.1 m x 9.1 m (30 feet x 30 feet) concrete
foundation for four 2.4 m (8 feet) high fiberglass tanks for oyster processing,
30 m (98.4 feet) NW of the NW corner of the Small Boat Harbor, 36.5 m (119.8
feet) NE of a utility pole #32, 12.0 m (39.4 feet) south of the south wall of
the Coast Seafood hatchery, 0.8 m (2.6 feet) west of the center of a concrete
drainage section between the tanks, and 0.3 m (1 foot) north of the south edge
of the concrete pad.

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

                                                                                
Station ID: 9445272                         PUBLICATION DATE:  04/21/2003
Name:       QUILCENE, DABOB BAY, HOOD CANAL                   
            WA
NOAA Chart: 18458                           Latitude:   47° 48.0' N (  47.80000)
USGS Quad:  QUILCENE                        Longitude: 122° 51.5' W (-122.85800)


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


                         BENCH MARK STAMPING:  5272 D 1995
                         DESIGNATION:          944 5272 D

MONUMENTATION:           Tidal Station disk                    VM#:         8464
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Concrete foundation                   OPUS PID:        
LATITUDE:   47° 48.0' N (  47.80000)          LONGITUDE: 122° 51.5' W (-122.85800)


The bench mark is a disk set 0.3 m (1.0 foot) SE of the NW corner of a 6.1 m x
7.0 m (20 feet x 23 feet) concrete pad for two large diesel tanks, 35 m (114.8
feet) NW of the red entrance channel light of the Quilcene small boat harbor,
5.8 m (19.0 feet) SW of a marine sewer pump manhole cover, 5.6 m (18.3 feet) NE
of the NE corner of a small marine fuel office building, and 0.3 m (0.9 feet) NW
of the most northwesterly of seven 4-inch diameter steel posts that protect the
diesel tanks.



                         BENCH MARK STAMPING:  5272 E 1995
                         DESIGNATION:          944 5272 E

MONUMENTATION:           Tidal Station disk                    VM#:         8465
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Concrete loading dock                 OPUS PID:        
LATITUDE:   47° 48.0' N (  47.80000)          LONGITUDE: 122° 51.5' W (-122.85800)


The bench mark is a disk set in concrete loading dock at SE corner of Coast
Oyster Company office building located at 1570 Linger Longer Road, 150 m (492
feet) north along Linger Longer road from Quilcene small boat harbor, 20.8 m
(68.2 feet) west of the centerline of Linger Longer Road, 0.9 m (2.9 feet) west
of the east edge of dock, 0.06 m (0.2 feet) south of the south side of the
building, and 0.9 m (3.0 feet) above ground level.

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

                                                                                
Station ID: 9445272                         PUBLICATION DATE:  04/21/2003
Name:       QUILCENE, DABOB BAY, HOOD CANAL                   
            WA
NOAA Chart: 18458                           Latitude:   47° 48.0' N (  47.80000)
USGS Quad:  QUILCENE                        Longitude: 122° 51.5' W (-122.85800)


                            T I D A L   D A T U M S 


Tidal datums at QUILCENE, DABOB BAY, HOOD CANAL based on:

     LENGTH OF SERIES:      3 Months
     TIME PERIOD:           July 1995 - September 1995
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  9447130 SEATTLE, PUGET SOUND


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

     MEAN HIGHER HIGH WATER                     MHHW   =  3.468
     MEAN HIGH WATER                            MHW    =  3.210
     MEAN SEA LEVEL                             MSL    =  2.054
     MEAN TIDE LEVEL                            MTL    =  2.053
     MEAN LOW WATER                             MLW    =  0.896
     MEAN LOWER LOW WATER                       MLLW   =  0.000

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     5272 B 1995                                 4.959    1.749
     5272 A 1995                                 4.344    1.134
     5272 C 1995                                 4.869    1.659
     5272 D 1995                                 5.398    2.188
     5272 E 1995                                 5.852    2.642


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

                                                                                
Station ID: 9445272                         PUBLICATION DATE:  04/21/2003
Name:       QUILCENE, DABOB BAY, HOOD CANAL                   
            WA
NOAA Chart: 18458                           Latitude:   47° 48.0' N (  47.80000)
USGS Quad:  QUILCENE                        Longitude: 122° 51.5' W (-122.85800)


                             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.

Return to Top
Products available at 9445272 QUILCENE, DABOB BAY, HOOD CANAL, WA

Revised: 08/08/2018
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services