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Bench Mark Sheet for 8454049, Quonset Point RI
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8454049 Quonset Point, RI
 
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U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 5 Station ID: 8454049 PUBLICATION DATE: 06/03/2020 Name: QUONSET POINT RI NOAA Chart: 13221 Latitude: 41° 35.2' N ( 41.58680) USGS Quad: WICKFORD Longitude: 71° 24.7' W ( -71.41100) To reach the tide station from North Kingstown, RI, proceed to the intersection of U.S. Route 1 north and Roger Williams Way, turn right (east) onto Roger WIlliams Way and proceed 4.3 km (2.7 mi) to the entrance of the American Shipyard Corporation. The tide station is located on the offshore end of the pier on a round concrete docking cell. The tidal bench marks are along the pier and just outside the American Shipyard property. T I D A L B E N C H M A R K S PRIMARY BENCH MARK STAMPING: 4049 D 1999 DESIGNATION: 845 4049 D MONUMENTATION: Tidal Station disk VM#: 16009 AGENCY: National Ocean Service (NOS) IDB PID: SETTING CLASSIFICATION: Concrete pier OPUS PID#: BBDK64 LATITUDE: 41° 35.2' N ( 41.58678) LONGITUDE: 71° 24.7' W ( -71.41089) The primary bench mark is a disk set in the south side of the pier at the American Shipyards Dock in a concrete cap on the seventh yellow bollard from the end, 23.80 m (78.1 ft) south of the north edge of the pier, 0.66 m (2.2 ft) east of the center of the bollard, and 0.55 m (1.8 ft) north of the south edge of the pier on the east side of the bollard.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 5 Station ID: 8454049 PUBLICATION DATE: 06/03/2020 Name: QUONSET POINT RI NOAA Chart: 13221 Latitude: 41° 35.2' N ( 41.58680) USGS Quad: WICKFORD Longitude: 71° 24.7' W ( -71.41100) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 4049 A 1999 DESIGNATION: 845 4049 A MONUMENTATION: Tidal Station disk VM#: 16010 AGENCY: National Ocean Service (NOS) IDB PID: SETTING CLASSIFICATION: Concrete pier OPUS PID: LATITUDE: 41° 35.2' N ( 41.58592) LONGITUDE: 71° 24.4' W ( -71.40719) The bench mark is a disk set in a concrete cap of a large metal cleat at the American Shipyards Dock on the SW side of a round concrete docking cell, 3.84 m (12.6 ft) west of a double bollard, 3.70 m (12.1 ft) south of the center of the catwalk to the cell, and 1.05 m (3.4 ft) east of the edge of the cell. BENCH MARK STAMPING: 4049 E 1999 DESIGNATION: 845 4049 E MONUMENTATION: Tidal Station disk VM#: 16013 AGENCY: National Ocean Service (NOS) IDB PID: SETTING CLASSIFICATION: Concrete slab OPUS PID#: BBDH88 LATITUDE: 41° 35.3' N ( 41.58756) LONGITUDE: 71° 24.8' W ( -71.41253) The bench mark is a disk set in the SE corner of the 2.40 m x 2.40 m (7.9 ft x 7.9 ft) concrete foundation for an electrical transformer at the American Shipyards Dock, 35.15 m (115.3 ft) NNE of the intersection of Roger Williams Way and Zarbo Avenue, 18.20 m (59.7 ft) north of the north post for the gate to the American Shipyards Corporation, and 10.90 m (35.8 ft) south of the centerline of Zarbo Avenue.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 5 Station ID: 8454049 PUBLICATION DATE: 06/03/2020 Name: QUONSET POINT RI NOAA Chart: 13221 Latitude: 41° 35.2' N ( 41.58680) USGS Quad: WICKFORD Longitude: 71° 24.7' W ( -71.41100) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 4049 F 2013 DESIGNATION: 845 4049 F MONUMENTATION: Flange-encased Rod VM#: 21087 AGENCY: National Ocean Service IDB PID: SETTING CLASSIFICATION: Stainless steel rod in sleeve OPUS PID: LATITUDE: 41° 35.2' N ( 41.58717) LONGITUDE: 71° 25.0' W ( -71.41631) The benchmark is a stainless steel rod 91.53 m (300.3 ft) South of South large boulder at parking lot entrance near roger williams parkway, 43.98 m (144.3 ft) West of the North concrete column surrounding trashcans on South end of turnaround, and 28.19 m (92.5 ft) East of the fenced property line for the adjacent general dynamics manufacturing facility. The datum point is the top of a stainless steel rod driven 75.1 ft (22.9 m) to refusal, in a sleeve extending to a depth of 1.00 m (3.28 ft), and encased in a 5- inch nos logo cap, with concrete kick block. BENCH MARK STAMPING: 4049 G 2017 DESIGNATION: 845 4049 G MONUMENTATION: Tidal Station disk VM#: 22471 AGENCY: National Ocean Service (NOS) IDB PID: SETTING CLASSIFICATION: Concrete seawall OPUS PID: LATITUDE: 41° 35.3' N ( 41.58753) LONGITUDE: 71° 24.7' W ( -71.41139) The bench mark is a disk set on the northern seawall of the Senesco Marine Shipyards Dock at the NE most extent of the property near the fenceline, 53.26m (174.77 ft) east of the center of the SE support column for the Senesco Marine office building, 0.72m (2.35 ft) south of the eastern end of fencline along the NE side of the property, and 0.63m (2.07 ft) north of the south edge of the sea wall.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 5 Station ID: 8454049 PUBLICATION DATE: 06/03/2020 Name: QUONSET POINT RI NOAA Chart: 13221 Latitude: 41° 35.2' N ( 41.58680) USGS Quad: WICKFORD Longitude: 71° 24.7' W ( -71.41100) T I D A L D A T U M S Tidal datums at QUONSET POINT based on: LENGTH OF SERIES: 18 YEARS TIME PERIOD: 6/00-5/12, 11/12-10/14, 3/15-2/19 TIDAL EPOCH: 1983-2001 CONTROL TIDE STATION: 8452660 NEWPORT, NARRAGANSETT BAY Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS: HIGHEST OBSERVED WATER LEVEL (04/16/2007) = 2.231 MEAN HIGHER HIGH WATER MHHW = 1.251 MEAN HIGH WATER MHW = 1.176 North American Vertical Datum NAVD88 = 0.680 MEAN TIDE LEVEL MTL = 0.612 MEAN SEA LEVEL MSL = 0.567 MEAN LOW WATER MLW = 0.047 MEAN LOWER LOW WATER MLLW = 0.000 LOWEST OBSERVED WATER LEVEL (02/11/2001) = -0.832 North American Vertical Datum (NAVD88) Bench Mark Elevation Information In METERS above: Stamping or Designation MLLW MHW 4049 D 1999 2.985 1.809 4049 A 1999 2.930 1.754 4049 E 1999 3.021 1.845 4049 F 2013 2.810 1.634 4049 G 2017 2.808 1.632
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 5 Station ID: 8454049 PUBLICATION DATE: 06/03/2020 Name: QUONSET POINT RI NOAA Chart: 13221 Latitude: 41° 35.2' N ( 41.58680) USGS Quad: WICKFORD Longitude: 71° 24.7' W ( -71.41100) 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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