U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 5 Station ID: 8539058 PUBLICATION DATE: 08/11/2004 Name: ASSISCUNK CREEK, DELAWARE RIVER NJ NOAA Chart: 12314 Latitude: 40° 4.4' N ( 40.07330) USGS Quad: BRISTOL Longitude: 74° 50.9' W ( -74.84830) To reach the tidal bench marks from John F. Kennedy Lake in Burlington, NJ, proceed NE on U.S. Route 130 to the highway bridge over Assiscunk Creek. The bench marks are located on the bridge abutments of three adjacent bridges over Assiscunk Creek. The tide gage and staff were located on the NE concrete wing wall of the bridge. T I D A L B E N C H M A R K S PRIMARY BENCH MARK STAMPING: 9058 A 1977 DESIGNATION: 853 9058 A TIDAL MONUMENTATION: Tidal Station disk VM#: 2880 AGENCY: National Ocean Survey (NOS) IDB PID#: KV6660 SETTING CLASSIFICATION: Concrete bridge abutment OPUS PID: LATITUDE: 40° 4.5' N ( 40.07500) LONGITUDE: 74° 50.9' W ( -74.84830) The primary bench mark is a disk set flush in the concrete abutment wing wall, 17.71 m (58.1 ft) SW of its NE extremity, 7.65 m (25.1 ft) south of wood utility pole #2916, 2.47 m (8.1 ft) SE of the easterly concrete curb of the bridge, and 0.40 m (1.3 ft) east of the corner of the concrete bridge railing.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 5 Station ID: 8539058 PUBLICATION DATE: 08/11/2004 Name: ASSISCUNK CREEK, DELAWARE RIVER NJ NOAA Chart: 12314 Latitude: 40° 4.4' N ( 40.07330) USGS Quad: BRISTOL Longitude: 74° 50.9' W ( -74.84830) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 9058 B 1977 DESIGNATION: 853 9058 B TIDAL MONUMENTATION: Tidal Station disk VM#: 2881 AGENCY: National Ocean Survey (NOS) IDB PID#: KV6661 SETTING CLASSIFICATION: Concrete bridge abutment OPUS PID: LATITUDE: 40° 4.4' N ( 40.07330) LONGITUDE: 74° 50.9' W ( -74.84830) The bench mark is a disk set flush in the concrete abutment wing wall, 27.61 m (90.6 ft) NNE of a steel sign reading "Right Lane Ends," 2.44 m (8.0 ft) NW of the west curb of the bridge, 0.76 m (2.5 ft) SW of the southernmost inside corner of the concrete bridge railing, and 0.67 m (2.2 ft) NW of the steel guard rail. BENCH MARK STAMPING: 9058 C 1977 DESIGNATION: 853 9058 C TIDAL MONUMENTATION: Tidal Station disk VM#: 2882 AGENCY: National Ocean Survey (NOS) IDB PID#: KV6662 SETTING CLASSIFICATION: Concrete bridge abutment OPUS PID#: KV6662 LATITUDE: 40° 4.5' N ( 40.07500) LONGITUDE: 74° 50.9' W ( -74.84830) The bench mark is a disk set flush in the western extremity of the concrete abutment wing wall, 37 m (120 ft) north of bench mark 9058 B 1977, 13.62 m (44.7 ft) WSW of wood utility pole #1246 BC, 2.29 m (7.5 ft) south of the NE end of the concrete bridge railing, and 0.94 m (3.1 ft) south of the NE end of an iron pipe rail fence.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 5 Station ID: 8539058 PUBLICATION DATE: 08/11/2004 Name: ASSISCUNK CREEK, DELAWARE RIVER NJ NOAA Chart: 12314 Latitude: 40° 4.4' N ( 40.07330) USGS Quad: BRISTOL Longitude: 74° 50.9' W ( -74.84830) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 9058 D 1977 DESIGNATION: 853 9058 D TIDAL MONUMENTATION: Tidal Station disk VM#: 2883 AGENCY: National Ocean Survey (NOS) IDB PID#: KV6663 SETTING CLASSIFICATION: Concrete bridge abutment OPUS PID: LATITUDE: 40° 4.5' N ( 40.07500) LONGITUDE: 74° 50.9' W ( -74.84830) The bench mark is a disk set flush in lower abutment at the NW end of the US Highway 130 southbound bridge, 43 m (140 ft) west of bench mark 9058 C 1977, 4.21 m (13.8 ft) north of wood utility pole #PS 2660 BC, 1.07 m (3.5 ft) NW of the SW extremity of the bridge railing, and 0.49 m (1.6 ft) NW of the abutment wall.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 5 Station ID: 8539058 PUBLICATION DATE: 08/11/2004 Name: ASSISCUNK CREEK, DELAWARE RIVER NJ NOAA Chart: 12314 Latitude: 40° 4.4' N ( 40.07330) USGS Quad: BRISTOL Longitude: 74° 50.9' W ( -74.84830) T I D A L D A T U M S Tidal datums at ASSISCUNK CREEK, DELAWARE RIVER based on: LENGTH OF SERIES: 2 MONTHS TIME PERIOD: October 1977 - November 1977 TIDAL EPOCH: 1983-2001 CONTROL TIDE STATION: 8545530 PHILADELPHIA (PIER 11 NORTH), DEL. RIVER Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS: MEAN HIGHER HIGH WATER MHHW = 2.205 MEAN HIGH WATER MHW = 2.108 MEAN SEA LEVEL MSL = 1.094 MEAN TIDE LEVEL MTL = 1.080 North American Vertical Datum NAVD88 = 0.903 MEAN LOW WATER MLW = 0.051 MEAN LOWER LOW WATER MLLW = 0.000 North American Vertical Datum (NAVD88) Bench Mark Elevation Information In METERS above: Stamping or Designation MLLW MHW 9058 A 1977 4.692 2.584 9058 B 1977 5.358 3.250 9058 C 1977 3.793 1.685 9058 D 1977 2.988 0.880
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 5 Station ID: 8539058 PUBLICATION DATE: 08/11/2004 Name: ASSISCUNK CREEK, DELAWARE RIVER NJ NOAA Chart: 12314 Latitude: 40° 4.4' N ( 40.07330) USGS Quad: BRISTOL Longitude: 74° 50.9' W ( -74.84830) 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.