U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 6 Station ID: 9449911 PUBLICATION DATE: 06/16/2016 Name: UPRIGHT HEAD, PUGET SOUND WA NOAA Chart: 18430 Latitude: 48° 34.3' N ( 48.57170) USGS Quad: SHAW ISLAND Longitude: 122° 53.1' W (-122.88500) To reach the tide station from the Washington State Ferry Terminal in Anacortes, proceed 18.0 km (11.0 mi) NW on the ferry to the Lopez Island ferry terminal, disembark the ferry and proceed 30 m (100 ft) SW to the south end of the ramp and the tide station on the metal platform on the right. The bench mark are along the shoreline and roadway that approaches the Lopez Island ferry terminal. T I D A L B E N C H M A R K S PRIMARY BENCH MARK STAMPING: 2 1947 DESIGNATION: 944 9911 TIDAL 2 MONUMENTATION: Bench Mark disk VM#: 21714 AGENCY: United States Coast and Geodetic SurveyIDB PID#: SETTING CLASSIFICATION: OPUS PID: LATITUDE: 48° 34.2' N ( 48.57083) LONGITUDE: 122° 53.0' W (-122.88378) The primary bench mark is a disk set in a bedrock outcrop on the E half of a sand and gravel beach W of the ferry dock, 46.80 m (153.5 ft) SE of the rock face at the W end of the beach, 36.92 m (121.1 ft) WNW of ferry dock, 22.32 m (73.2 ft) ESE of 'Keep Out Authorized Personnel Only' sign, 6.60 m (21.7 ft) N of tree clump at vegetation line, 1.90 m (6.2 ft) SE of W side of top of rock and 2 m (6.6 ft) above the beach.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 6 Station ID: 9449911 PUBLICATION DATE: 06/16/2016 Name: UPRIGHT HEAD, PUGET SOUND WA NOAA Chart: 18430 Latitude: 48° 34.3' N ( 48.57170) USGS Quad: SHAW ISLAND Longitude: 122° 53.1' W (-122.88500) T I D A L B E N C H M A R K S BENCH MARK STAMPING: TIDAL 5 1964 RESET 1996 DESIGNATION: 944 9911 TIDAL 5 RESET MONUMENTATION: Vertical Control disk VM#: 21716 AGENCY: United States Coast and Geodetic SurveyIDB PID#: SETTING CLASSIFICATION: Concrete base of light post OPUS PID: LATITUDE: 48° 34.2' N ( 48.57017) LONGITUDE: 122° 53.0' W (-122.88378) The mark is a disk set in a concrete base for a light pole S of the ferry terminal building along the sidewalk, 11.37 m (37.3 ft) SSE of a ferry loading sign, 2.98 m (9.8 ft) SSE of a green electric utility box, 2.20 m (7.2 ft) NW of a rock face, 1.83 m (6.0 ft) E of curb face and 0.30 m (1.0 ft) WNW of the light pole.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 6 Station ID: 9449911 PUBLICATION DATE: 06/16/2016 Name: UPRIGHT HEAD, PUGET SOUND WA NOAA Chart: 18430 Latitude: 48° 34.3' N ( 48.57170) USGS Quad: SHAW ISLAND Longitude: 122° 53.1' W (-122.88500) T I D A L B E N C H M A R K S BENCH MARK STAMPING: GP 28-5 1988 DESIGNATION: GP28 5 MONUMENTATION: Survey disk VM#: 21717 AGENCY: Washington Department of TransportationIDB PID#: SETTING CLASSIFICATION: OPUS PID: LATITUDE: 48° 34.1' N ( 48.56906) LONGITUDE: 122° 53.0' W (-122.88411) The bench mark is a disk set in concrete monument beneath a metal WS DOT monument cover that is 0.23 m (0.8 ft) in diameter, 32.01 m (105.0 ft) SSW of a light pole with signs attached, 18.85 m (61.8 ft) NE of a light pole, 14.82 m (48.6 ft) SE of the S end of a wooden lane divider, 3.55 m (11.6 ft) NNE of a small deciduous tree, 0.69 m (2.3 ft) WNW of concrete wall and witness post, and 0.24 m (0.8 ft) below the road. BENCH MARK STAMPING: TIDAL BM 6 1974 DESIGNATION: 944 9911 TIDAL 6 MONUMENTATION: Tidal Station disk VM#: 21718 AGENCY: National Ocean Service IDB PID#: SETTING CLASSIFICATION: OPUS PID: LATITUDE: 48° 34.2' N ( 48.57047) LONGITUDE: 122° 53.0' W (-122.88336) The bench mark is a disk set in bedrock outcrop on the E side of the ferry dock N of the ferry building, 13.42 m (44.0 ft) E of the center of the concrete retaining wall underneath the ferry dock, 11.80 m (38.7 ft) NNE of the bottom of a dirt trail from the ferry building down the bluff, 9.03 m (29.6 ft) SE of a ferry dock piling with concrete footer, and 7.88 m (25.9 ft) NE of vegetation line.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 6 Station ID: 9449911 PUBLICATION DATE: 06/16/2016 Name: UPRIGHT HEAD, PUGET SOUND WA NOAA Chart: 18430 Latitude: 48° 34.3' N ( 48.57170) USGS Quad: SHAW ISLAND Longitude: 122° 53.1' W (-122.88500) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 9911 A 2015 DESIGNATION: 944 9911 A MONUMENTATION: Bench Mark disk VM#: 21719 AGENCY: NOS CO-OPS IDB PID#: SETTING CLASSIFICATION: OPUS PID#: BBDX20 LATITUDE: 48° 34.2' N ( 48.56973) LONGITUDE: 122° 53.0' W (-122.88299) The bench mark is a disk set in a bedrock outcrop in a clearing approximately 0.1 km (0.1 mi) SSE of the ferry dock, 13.7 m (44.9 ft) ESE of a 0.8 m (2.6 ft) diameter evergreen tree whose trunk splits in two, 12.39 m (40.6 ft) N of a 0.5 m (1.6 ft) diameter evergreen tree, 7.4 m (24.3 ft) S of rock ledge above the water, 4.02 m (13.2 ft) WSW of rock ledge above the water, and 2.63 m (8.6 ft) N of the high point of the outcrop.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 6 Station ID: 9449911 PUBLICATION DATE: 06/16/2016 Name: UPRIGHT HEAD, PUGET SOUND WA NOAA Chart: 18430 Latitude: 48° 34.3' N ( 48.57170) USGS Quad: SHAW ISLAND Longitude: 122° 53.1' W (-122.88500) T I D A L D A T U M S Tidal datums at UPRIGHT HEAD, PUGET SOUND based on: LENGTH OF SERIES: 3 MONTHS TIME PERIOD: August 2015 - October 2015 TIDAL EPOCH: 1983-2001 CONTROL TIDE STATION: 9449880 FRIDAY HARBOR, SAN JUAN CHANNEL Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS: MEAN HIGHER HIGH WATER MHHW = 2.389 MEAN HIGH WATER MHW = 2.193 MEAN TIDE LEVEL MTL = 1.447 MEAN SEA LEVEL MSL = 1.408 MEAN LOW WATER MLW = 0.702 MEAN LOWER LOW WATER MLLW = 0.000 North American Vertical Datum (NAVD88) Bench Mark Elevation Information In METERS above: Stamping or Designation MLLW MHW 2 1947 3.849 1.656 TIDAL 5 1964 RESET 1996 12.149 9.956 GP 28-5 1988 20.159 17.966 TIDAL BM 6 1974 2.705 0.512 9911 A 2015 7.726 5.533
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 6 of 6 Station ID: 9449911 PUBLICATION DATE: 06/16/2016 Name: UPRIGHT HEAD, PUGET SOUND WA NOAA Chart: 18430 Latitude: 48° 34.3' N ( 48.57170) USGS Quad: SHAW ISLAND Longitude: 122° 53.1' W (-122.88500) 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.