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.