U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 6 Station ID: 8546252 PUBLICATION DATE: 11/20/2020 Name: BRIDESBURG PA NOAA Chart: 12313 Latitude: 39° 59.0' N ( 39.98333) USGS Quad: CAMDEN Longitude: 75° 4.5' W ( -75.07500) To reach the station from the intersection of Aramingo Ave and E Venango Ave in Port Richmond, PA, proceed southeast on E Venango Ave for 1.64 km (1.0 mi) to the intersection with N Delaware Ave, then northeast on N Delaware Ave for 0.1 km (0.06 mi) to the entrance of Tioga Marine Terminal. The bench marks are located along the south side of N Delaware Ave and within the terminal. The tide gauge is located on the first dolphin east of the main dock within the terminal. T I D A L B E N C H M A R K S PRIMARY BENCH MARK STAMPING: 6252 G 2015 DESIGNATION: 854 6252 G MONUMENTATION: Flange-encased Rod VM#: 21822 AGENCY: NOS IDB PID: SETTING CLASSIFICATION: Stainless steel rod OPUS PID#: BBDZ58 LATITUDE: 39° 59.0' N ( 39.98308) LONGITUDE: 75° 5.0' W ( -75.08253) The primary bench mark is a deep rod mark located along the S side of N Delaware Avenue in Port Richmond PA, 44.5 m (146 ft) NE of the NE corner of the green electrical box 678 on S side of Delaware Avenue, 8.2 m (27 ft) N of an orange survey mark witness post affixed to the chain link fence for Tioga Marine Terminal, and 5.0 m (16.5 ft) S of the centerline of Delaware Avenue, recessed 6 cm (2 inches) below grade, encased in a 5 inch NOS logo cap.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 6 Station ID: 8546252 PUBLICATION DATE: 11/20/2020 Name: BRIDESBURG PA NOAA Chart: 12313 Latitude: 39° 59.0' N ( 39.98333) USGS Quad: CAMDEN Longitude: 75° 4.5' W ( -75.07500) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 6252 A 2015 DESIGNATION: 854 6252 A MONUMENTATION: Tidal Station disk VM#: 21823 AGENCY: NOS IDB PID: SETTING CLASSIFICATION: Concrete dolphin OPUS PID: LATITUDE: 39° 58.8' N ( 39.97972) LONGITUDE: 75° 4.8' W ( -75.07950) The bench mark is a brass disk surface mark located in the Tioga Marine Terminal on the first concrete dolphin east of the main dock, located 6.55 m (21.5 ft) north of the southern edge of the dolphin, 0.61 m (2 ft) east of the western edge of the dolphin, and 0.3 m (1.0 ft) south of the northern edge of the dolphin, set flush with the concrete surface. BENCH MARK STAMPING: 6252 B 2015 DESIGNATION: 854 6252 B MONUMENTATION: Tidal Station disk VM#: 21824 AGENCY: NOS IDB PID: SETTING CLASSIFICATION: Concrete OPUS PID: LATITUDE: 39° 58.8' N ( 39.97961) LONGITUDE: 75° 4.8' W ( -75.07997) The bench mark is a brass disk surface mark located in the Tioga Marine Terminal on the southeastern edge of the main dock, 3.65 m (12.0 ft) east of the eastern end of the crane track, 0.76 m (2.5 ft) south of the southern handrail for the catwalk leading to the tide station, and 0.60 m (2 ft) north of the southern edge of the main pier, set flush with the concrete surface.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 6 Station ID: 8546252 PUBLICATION DATE: 11/20/2020 Name: BRIDESBURG PA NOAA Chart: 12313 Latitude: 39° 59.0' N ( 39.98333) USGS Quad: CAMDEN Longitude: 75° 4.5' W ( -75.07500) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 6252 C 2015 DESIGNATION: 854 6252 C MONUMENTATION: Tidal Station disk VM#: 21825 AGENCY: NOS IDB PID: SETTING CLASSIFICATION: Concrete seawall OPUS PID: LATITUDE: 39° 58.8' N ( 39.98031) LONGITUDE: 75° 4.8' W ( -75.08044) The bench mark is a brass disk surface mark located in the Tioga Marine Terminal on the eastern edge of the main dock, 90 m (295 ft) north of the northern handrail for the catwalk leading to the tide station, 23.5 m (77 ft) NE of the NE corner of the security shack on the eastern side of the main dock, and 0.6 m (2 ft) west of the eastern edge of the main pier, set flush with the concrete surface. BENCH MARK STAMPING: 6252 E 2015 DESIGNATION: 854 6252 E MONUMENTATION: Flange-encased Rod VM#: 21827 AGENCY: NOS IDB PID: SETTING CLASSIFICATION: Stainless steel rod OPUS PID: LATITUDE: 39° 58.9' N ( 39.98083) LONGITUDE: 75° 5.2' W ( -75.08706) The bench mark is a deep rod mark located along the south side of North Delaware Avenue in Port Richmond, PA, 39 m (128 ft) SSW of the 'crosswalk ahead' sign on the south side of Delaware Avenue, 9.44 m (31 ft) north of the orange survey witness post affixed to the chain link fence for Tioga Marine Terminal, and 9.40 m (31 ft) south of the centerline for Delaware Ave, recessed 6 cm (2 inches) below grade, encased in a 5 inch NOS logo cap.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 6 Station ID: 8546252 PUBLICATION DATE: 11/20/2020 Name: BRIDESBURG PA NOAA Chart: 12313 Latitude: 39° 59.0' N ( 39.98333) USGS Quad: CAMDEN Longitude: 75° 4.5' W ( -75.07500) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 6252 F 2015 DESIGNATION: 854 6252 F MONUMENTATION: Flange-encased Rod VM#: 21828 AGENCY: NOS IDB PID: SETTING CLASSIFICATION: Stainless steel rod OPUS PID: LATITUDE: 39° 58.9' N ( 39.98122) LONGITUDE: 75° 5.1' W ( -75.08583) The bench mark is a deep rod mark located along the south side of North Delaware Avenue in Port Richmond, PA, 9.44 m (31 ft) north of the orange survey witness post affixed to the chain link fence for Tioga Marine Terminal, 9.30 m (30 ft) south of the centerline for Delaware Avenue, and 5.48 m (18 ft) SW of the 'bicycle yield to pedestrians' sign on the south side of Delaware Ave, recessed 6 cm (2 inches) below grade, encased in a 5 inch nos logo cap.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 6 Station ID: 8546252 PUBLICATION DATE: 11/20/2020 Name: BRIDESBURG PA NOAA Chart: 12313 Latitude: 39° 59.0' N ( 39.98333) USGS Quad: CAMDEN Longitude: 75° 4.5' W ( -75.07500) T I D A L D A T U M S Tidal datums at BRIDESBURG based on: LENGTH OF SERIES: 3 YEARS TIME PERIOD: February 2016 - January 2019 TIDAL EPOCH: 1983-2001 CONTROL TIDE STATION: 8545240 PHILADELPHIA (USCG STA.), DELAWARE RIVER Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS: HIGHEST OBSERVED WATER LEVEL (11/26/2018) = 3.038 MEAN HIGHER HIGH WATER MHHW = 2.124 MEAN HIGH WATER MHW = 2.006 MEAN SEA LEVEL MSL = 1.094 MEAN TIDE LEVEL MTL = 1.032 MEAN LOW WATER MLW = 0.058 MEAN LOWER LOW WATER MLLW = 0.000 LOWEST OBSERVED WATER LEVEL (01/07/2018) = -1.107 North American Vertical Datum (NAVD88) Bench Mark Elevation Information In METERS above: Stamping or Designation MLLW MHW 6252 G 2015 4.048 2.042 6252 A 2015 4.493 2.487 6252 B 2015 3.761 1.755 6252 C 2015 3.777 1.771 6252 E 2015 3.768 1.762 6252 F 2015 3.248 1.242
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 6 of 6 Station ID: 8546252 PUBLICATION DATE: 11/20/2020 Name: BRIDESBURG PA NOAA Chart: 12313 Latitude: 39° 59.0' N ( 39.98333) USGS Quad: CAMDEN Longitude: 75° 4.5' W ( -75.07500) 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.