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Bench Mark Sheet for 9446291, Wauna 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Superseded Epoch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Small blue map location marker Unpublished bench mark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  8

                                                                                
Station ID: 9446291                         PUBLICATION DATE:  05/19/2016
Name:       WAUNA, CARR INLET, PUGET SOUND                    
            WA
NOAA Chart: 18445                           Latitude:   47° 22.7' N (  47.37830)
USGS Quad:  GIG HARBOR                      Longitude: 122° 38.0' W (-122.63403)


To reach the station from the WA 16 northbound exit for 302 West Purdy/Key
Center, proceed NNW 0.8 km (0.5 mi) on the exit ramp to Purdy Drive NW, continue
NNW on Purdy Drive NW 1.3 km (0.8 mi) to the intersection with WA 302, turn left
onto WA 302 and proceed WSW 0.2 km (0.1 mi) onto the bridge over the inlet. The
station is on the bridge and the bench marks are on both sides of the bridge
between Purdy Drive NW to the east and Goodrich Drive NW to the west.


                         T I D A L   B E N C H   M A R K S
                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  2 of  8

                                                                                
Station ID: 9446291                         PUBLICATION DATE:  05/19/2016
Name:       WAUNA, CARR INLET, PUGET SOUND                    
            WA
NOAA Chart: 18445                           Latitude:   47° 22.7' N (  47.37830)
USGS Quad:  GIG HARBOR                      Longitude: 122° 38.0' W (-122.63403)


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


                 PRIMARY BENCH MARK STAMPING:  KP-A WAUNA
                         DESIGNATION:          KP A WAUNA

MONUMENTATION:           Flange-encased Rod                    VM#:        21773
AGENCY:                  Pierce County Public Works            IDB PID#:        
SETTING CLASSIFICATION:                                        OPUS PID:        
LATITUDE:   47° 22.8' N (  47.37937)          LONGITUDE: 122° 38.6' W (-122.64255)


The mark is a flange encased rod set in a grassy area west of the intersection
of Goodrich Dr. NW and WA 302, 34.38 m (112.8 ft) NE of street sign for Goodrich
Ct. NW, 27.92 m (91.6 ft) SW of a wooden light post near Goodrich Dr. NW, 6.02 m
(19.8 ft) NW of the N edge of asphalt of WA 302, 1.76 m (5.8 ft) SSW of a wooden
post with a selling prohibited notice, 0.88 m (2.9 ft) SW of a 1.2 m (4.0 ft)
tall metal post.  The datum point is set 8 cm (3 inches) below grade, being the
top of a stainless steel rod in a sleeve and encased in a 6 inch (15 cm) PCPW
logo cap.



                         BENCH MARK STAMPING:  4 1944
                         DESIGNATION:          944 6291 TIDAL 4

MONUMENTATION:           Tidal Station disk                    VM#:        21774
AGENCY:                  CGS                                   IDB PID#:        
SETTING CLASSIFICATION:  Concrete bulkhead                     OPUS PID:        
LATITUDE:   47° 22.7' N (  47.37881)          LONGITUDE: 122° 38.6' W (-122.64286)


The mark is a disk set in the concrete bulkhead for the property at 7806 WA 302,
27.74 m (91.0 ft) WSW of the SE corner of the concrete bulkhead, 9.75 m (32.0
ft) SSW of the SW corner of the house at 7806 WA 302, 7.58 m (24.9 ft) E of the
SE corner of the neighboring blue house, 0.21 m (0.7 ft) NNW of the S edge of
the concrete bulkhead, 0.19 m (0.6 ft) ENE of the W edge of the concrete
bulkhead, 1.25 m (4.1 ft) above the beach and recessed 0.17 m (0.6 ft) below the
top of the concrete bulkhead.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  3 of  8

                                                                                
Station ID: 9446291                         PUBLICATION DATE:  05/19/2016
Name:       WAUNA, CARR INLET, PUGET SOUND                    
            WA
NOAA Chart: 18445                           Latitude:   47° 22.7' N (  47.37830)
USGS Quad:  GIG HARBOR                      Longitude: 122° 38.0' W (-122.63403)


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


                         BENCH MARK STAMPING:  NO 1 1917
                         DESIGNATION:          944 6291 TIDAL 1

MONUMENTATION:           Tidal Station disk                    VM#:        21775
AGENCY:                  CGS                                   IDB PID#:        
SETTING CLASSIFICATION:                                        OPUS PID:        
LATITUDE:   47° 22.7' N (  47.37903)          LONGITUDE: 122° 38.6' W (-122.64267)


The mark is a disk set in a concrete monument which is in a raised garden bed in
the fenced backyard of the house at 7806 WA 302, 11.27 m (37.0 ft) NNW of the
top concrete step of steps leading down to the beach, 6.26 m (20.5 ft) N of the
corner of the chimney, 4.65 m (15.3 ft) WNW of the center of the E garden gate,
2.90 m (9.5 ft) NE of the NE corner of the house, 2.37 m (7.8 ft) SSE of the N
edge of the concrete block wall and recessed 0.53 m (1.7 ft)  below the top of a
27 cm (11 inch) diameter pipe.



                         BENCH MARK STAMPING:  NO 3 1935
                         DESIGNATION:          944 6291 TIDAL 3

MONUMENTATION:           Tidal Station disk                    VM#:        21776
AGENCY:                  CGS                                   IDB PID#:        
SETTING CLASSIFICATION:                                        OPUS PID:        
LATITUDE:   47° 22.8' N (  47.37969)          LONGITUDE: 122° 38.5' W (-122.64231)


The mark is a disk set in a concrete block behind a concrete retaining wall near
the intersection of Goodrich Dr. NW and WA 302, 23.21 m (76.1 ft) WNW of the
street sign for Goodrich Dr. NW, 4.91 m (16.1 ft) NE of a wooden electric pole,
4.67 m (15.3 ft) WNW of the center of the driveway, 2.21 m (7.3 ft) ESE of the
1.1 m (3.6 ft) tall cement wall for old garage footprint, 0.35 m (1.1 ft) N of
the outer edge of the 40 cm (16 inch) tall concrete retaining wall and 40 cm (16
inches) above the driveway level.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  4 of  8

                                                                                
Station ID: 9446291                         PUBLICATION DATE:  05/19/2016
Name:       WAUNA, CARR INLET, PUGET SOUND                    
            WA
NOAA Chart: 18445                           Latitude:   47° 22.7' N (  47.37830)
USGS Quad:  GIG HARBOR                      Longitude: 122° 38.0' W (-122.63403)


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


                         BENCH MARK STAMPING:  WAUNA NO 6 1952
                         DESIGNATION:          944 6291 TIDAL 6

MONUMENTATION:           Tidal Station disk                    VM#:        21777
AGENCY:                  CGS                                   IDB PID#:        
SETTING CLASSIFICATION:  Concrete footing                      OPUS PID:        
LATITUDE:   47° 23.0' N (  47.38350)          LONGITUDE: 122° 37.8' W (-122.62981)


The mark is a disk set in the concrete foundation for a steel electrical
transmission tower N of WA 302 and W of the bridge, 20.87 m (68.5 ft) W of the
western end of the bridge guardrail on the N side of WA 302, 8.29 m (27.2 ft)
SSE of the northern most leg of the electrical tower, 7.83 m (25.7 ft) NNW of
the centerline of WA 302, 0.29 m (1.0 ft) S of the southern most leg of the
tower and 1.10 m (3.6 ft) below the level of the highway.



                         BENCH MARK STAMPING:  14 52 GWM 1951
                         DESIGNATION:          52 GWM

MONUMENTATION:           Bench Mark disk                       VM#:        21778
AGENCY:                                                        IDB PID#:        
SETTING CLASSIFICATION:  Concrete footing                      OPUS PID:        
LATITUDE:   47° 23.0' N (  47.38339)          LONGITUDE: 122° 37.8' W (-122.62967)


The mark is a disk set in a concrete footing for a steel electrical transmission
tower S of WA 302 and W of the Purdy Bridge, 39.68 m (130.2 ft) WSW of the
western end of the Purdy Bridge pedestrian handrail, 9.14 m (30.0 ft) SSE of the
centerline of WA 302, 7.17 m (23.5 ft) NNW of the southernmost leg of the
electrical tower, 3.19 m (10.5 ft) SSE of the asphalt curb of WA 302, and 1.1 m
(4 ft) below the level of the highway.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  5 of  8

                                                                                
Station ID: 9446291                         PUBLICATION DATE:  05/19/2016
Name:       WAUNA, CARR INLET, PUGET SOUND                    
            WA
NOAA Chart: 18445                           Latitude:   47° 22.7' N (  47.37830)
USGS Quad:  GIG HARBOR                      Longitude: 122° 38.0' W (-122.63403)


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


                         BENCH MARK STAMPING:  WAUNA NO 7 1952
                         DESIGNATION:          944 6291 TIDAL 7

MONUMENTATION:           Tidal Station disk                    VM#:        21779
AGENCY:                  CGS                                   IDB PID#:        
SETTING CLASSIFICATION:  Concrete sea wall                     OPUS PID:        
LATITUDE:   47° 23.0' N (  47.38344)          LONGITUDE: 122° 37.6' W (-122.62656)


The mark is a disk set in a concrete bulkhead on the W side of Purdy Dr. NW,
34.08 m (111.8 ft) NW of the NW corner of 13720 Purdy Dr. NW, 20.81 m (68.3 ft)
WSW of the metal lamp post in the parking lot near Purdy Dr. NW, 17.24 m (56.6
ft) WNW of the wooden lamp post, 5.12 m (16.8 ft) SE of where a fence meets the
wooden sea wall, 0.51 m (1.7 ft) S of the N end of the concrete bulkhead and 2.2
m (7.2 ft) above the beach.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  6 of  8

                                                                                
Station ID: 9446291                         PUBLICATION DATE:  05/19/2016
Name:       WAUNA, CARR INLET, PUGET SOUND                    
            WA
NOAA Chart: 18445                           Latitude:   47° 22.7' N (  47.37830)
USGS Quad:  GIG HARBOR                      Longitude: 122° 38.0' W (-122.63403)


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


                         BENCH MARK STAMPING:  PURDY 1935
                         DESIGNATION:          PURDY RM

MONUMENTATION:           Reference Mark disk                   VM#:        21780
AGENCY:                  CGS                                   IDB PID#:        
SETTING CLASSIFICATION:  Concrete bulkhead                     OPUS PID:        
LATITUDE:   47° 23.0' N (  47.38296)          LONGITUDE: 122° 37.6' W (-122.62629)


The mark is a disk set in a concrete bulkhead on the W side of Purdy Dr. NW,
55.83 m (183.2 ft) SSE of bench mark Wauna NO 7 1952 at the N end of the same
concrete bulkhead, 4.29 m (14.1 ft) WSW of the SW corner of the house at 13718
Purdy Dr. NW, 4.26 m (14.0 ft) WNW of nearest tree on S end of property at 13718
Purdy Dr. NW, 1.46 m (4.8 ft) SW of face of concrete block retaining wall, 0.34
m (1.1 ft) NNW of S end of concrete bulkhead, and 1.39 m (4.6 ft) above the
beach.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  7 of  8

                                                                                
Station ID: 9446291                         PUBLICATION DATE:  05/19/2016
Name:       WAUNA, CARR INLET, PUGET SOUND                    
            WA
NOAA Chart: 18445                           Latitude:   47° 22.7' N (  47.37830)
USGS Quad:  GIG HARBOR                      Longitude: 122° 38.0' W (-122.63403)


                            T I D A L   D A T U M S 


Tidal datums at WAUNA, CARR INLET, PUGET SOUND based on:

     LENGTH OF SERIES:      3 MONTHS
     TIME PERIOD:           September 2015 - November 2015
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  9446484 TACOMA, COMMENCEMENT BAY


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

     MEAN HIGHER HIGH WATER                     MHHW   =  4.116
     MEAN HIGH WATER                            MHW    =  3.832
     MEAN TIDE LEVEL                            MTL    =  2.363
     MEAN SEA LEVEL                             MSL    =  2.327
     MEAN LOW WATER                             MLW    =  0.895
     MEAN LOWER LOW WATER                       MLLW   =  0.000

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     KP-A WAUNA                                  7.502    3.670
     4 1944                                      5.092    1.260
     NO 1 1917                                   5.563    1.731
     NO 3 1935                                   8.930    5.098
     WAUNA NO 6 1952                             6.306    2.474
     14 52 GWM 1951                              6.303    2.471
     WAUNA NO 7 1952                             5.510    1.678
     PURDY 1935                                  5.535    1.703


                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  8 of  8

                                                                                
Station ID: 9446291                         PUBLICATION DATE:  05/19/2016
Name:       WAUNA, CARR INLET, PUGET SOUND                    
            WA
NOAA Chart: 18445                           Latitude:   47° 22.7' N (  47.37830)
USGS Quad:  GIG HARBOR                      Longitude: 122° 38.0' W (-122.63403)


                             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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Products available at 9446291 Wauna, WA

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