U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 5 Station ID: 8530278 PUBLICATION DATE: 02/07/2005 Name: HACKENSACK, HACKENSACK RIVER NJ NOAA Chart: 12337 Latitude: 40° 52.8' N ( 40.88000) USGS Quad: HACKENSACK Longitude: 74° 2.4' W ( -74.04000) To reach the tidal bench marks from Bergen County Courthouse in Hackensack, proceed east for 0.3 km (0.2 mi) on Court Street to the Court Street Bridge. The bench marks are in the area in the vicinity of the bridge and along River Street. The tide gage and staff were located on the NW fender of the bridge. T I D A L B E N C H M A R K S PRIMARY BENCH MARK STAMPING: 0278 B 1976 DESIGNATION: 853 0278 B MONUMENTATION: Tidal Station disk VM#: 2431 AGENCY: National Ocean Survey (NOS) IDB PID#: SETTING CLASSIFICATION: Copper-clad steel rod OPUS PID: LATITUDE: 40° 52.8' N ( 40.88000) LONGITUDE: 74° 2.4' W ( -74.04000) The primary bench mark is a disk set 0.3 km (0.2 mi) south along River Street from its intersection with River and Anderson Streets to the YMCA parking area, 21.88 m (71.8 ft) SE of the most easterly SE corner of the main 4-story brick YMCA building, 9.51 m (31.2 ft) NW of utility pole #63755 HS, and 3.60 m (11.8 ft) west of the west curb of River Street. The bench mark is set 6 cm (0.2 ft) below ground level, crimped to the top of a copper-clad steel rod driven 15.2 m (50 ft), and encased in a PVC pipe and concrete.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 5 Station ID: 8530278 PUBLICATION DATE: 02/07/2005 Name: HACKENSACK, HACKENSACK RIVER NJ NOAA Chart: 12337 Latitude: 40° 52.8' N ( 40.88000) USGS Quad: HACKENSACK Longitude: 74° 2.4' W ( -74.04000) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 803 DESIGNATION: 853 0278 803 MONUMENTATION: Tidal Station disk VM#: 12929 AGENCY: New Jersey State Survey (NJSS) IDB PID#: SETTING CLASSIFICATION: Concrete monument OPUS PID: LATITUDE: 40° 52.8' N ( 40.88000) LONGITUDE: 74° 2.4' W ( -74.04000) The bench mark is a disk set in a concrete monument on the east side of River Road just north of the NYSW railroad threstle overpass, 24.29 m (79.7 ft) SE of Utility Pole 59973, 19.60 m (64.3 ft) NE of the NW corner of the concrete abutment of the railroad, and 0.09 m (0.3 ft) below sidewalk level in a square cutout section. BENCH MARK STAMPING: U.S.H.L. MON. HK-75 DESIGNATION: 853 0278 HK-75 MONUMENTATION: Survey disk VM#: 12930 AGENCY: US Army Corps of Engineers (USE) IDB PID#: SETTING CLASSIFICATION: Concrete bridge walkway OPUS PID: LATITUDE: 40° 52.8' N ( 40.88000) LONGITUDE: 74° 2.4' W ( -74.04000) The bench mark is a disk set in the south concrete bridge walkway on the east end of the Court Street (Dillard Memorial) Bridge, 7.19 m (23.6 ft) WNW of a concrete rail, 5.49 m (18.0 ft) south of the Court Street centerline, and 1.40 m (4.6 ft) south of the southern curb of Court Street.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 5 Station ID: 8530278 PUBLICATION DATE: 02/07/2005 Name: HACKENSACK, HACKENSACK RIVER NJ NOAA Chart: 12337 Latitude: 40° 52.8' N ( 40.88000) USGS Quad: HACKENSACK Longitude: 74° 2.4' W ( -74.04000) T I D A L B E N C H M A R K S BENCH MARK STAMPING: U.S.H.L. HK-76 DESIGNATION: 853 0278 HK-76 MONUMENTATION: Survey disk VM#: 12931 AGENCY: US Army Corps of Engineers (USE) IDB PID#: SETTING CLASSIFICATION: Concrete bridge walkway OPUS PID: LATITUDE: 40° 52.8' N ( 40.88000) LONGITUDE: 74° 2.4' W ( -74.04000) The bench mark is a disk set in the south concrete bridge walkway on the west end of the Court Street (Dillard Memorial) Bridge, 22.01 m (72.2 ft.) WSW of the SW steel bridge girder, 13.11 m (43.0 ft.) SSE of the SE corner of the bridge tender building, 5.49 m (18.0 ft.) south of the Court Street centerline, and 4.30 m (14.1 ft.) ENE of the SW concrete cornerstone of the bridge.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 5 Station ID: 8530278 PUBLICATION DATE: 02/07/2005 Name: HACKENSACK, HACKENSACK RIVER NJ NOAA Chart: 12337 Latitude: 40° 52.8' N ( 40.88000) USGS Quad: HACKENSACK Longitude: 74° 2.4' W ( -74.04000) T I D A L D A T U M S Tidal datums at HACKENSACK, HACKENSACK RIVER based on: LENGTH OF SERIES: 3 MONTHS TIME PERIOD: August 1994 - October 1994 TIDAL EPOCH: 1983-2001 CONTROL TIDE STATION: 8518750 THE BATTERY, NEW YORK HARBOR Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS: MEAN HIGHER HIGH WATER MHHW = 2.019 MEAN HIGH WATER MHW = 1.920 MEAN SEA LEVEL MSL = 1.088 MEAN TIDE LEVEL MTL = 1.004 MEAN LOW WATER MLW = 0.088 MEAN LOWER LOW WATER MLLW = 0.000 North American Vertical Datum (NAVD88) Bench Mark Elevation Information In METERS above: Stamping or Designation MLLW MHW 0278 B 1976 3.577 1.657 803 2.103 0.183 U.S.H.L. MON. HK-75 3.561 1.641 U.S.H.L. HK-76 3.416 1.496
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 5 Station ID: 8530278 PUBLICATION DATE: 02/07/2005 Name: HACKENSACK, HACKENSACK RIVER NJ NOAA Chart: 12337 Latitude: 40° 52.8' N ( 40.88000) USGS Quad: HACKENSACK Longitude: 74° 2.4' W ( -74.04000) 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.