U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 8 Station ID: 8531991 PUBLICATION DATE: 04/21/2003 Name: LONG BRANCH,FISHING PIER NJ NOAA Chart: 12324 Latitude: 40° 18.2' N ( 40.30330) USGS Quad: LONG BRANCH EAST Longitude: 73° 58.6' W ( -73.97670) To reach the tidal bench marks from the post office in Long Branch, proceed south on Third Avenue to Chelsea Avenue, turn left on Chelsea Avenue and go east to Ocean Avenue, turn left on Ocean Avenue and go north for 0.3 km (0.2 mi) to Long Branch Fishing Pier. The bench marks are located in the vicinity of the pier along Ocean Avenue, Chelsea Avenue, and Third Avenue. The tide station was located at the end of the fishing pier. T I D A L B E N C H M A R K S
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 8 Station ID: 8531991 PUBLICATION DATE: 04/21/2003 Name: LONG BRANCH,FISHING PIER NJ NOAA Chart: 12324 Latitude: 40° 18.2' N ( 40.30330) USGS Quad: LONG BRANCH EAST Longitude: 73° 58.6' W ( -73.97670) T I D A L B E N C H M A R K S PRIMARY BENCH MARK STAMPING: TIDAL NO 1 1948 DESIGNATION: TIDAL 1 STA 28 MONUMENTATION: Tidal Station disk VM#: 329 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: KU0805 SETTING CLASSIFICATION: Concrete step OPUS PID#: KU0805 LATITUDE: 40° 18.1' N ( 40.30170) LONGITUDE: 73° 59.0' W ( -73.98330) The primary bench mark is a disk set in the top concrete step at the Second Avenue entrance to Our Lady Star of the Sea church at the corner of Second and Chelsea Avenues, 32 m (105 ft) north of the centerline of Chelsea Avenue, 10.18 m (33.4 ft) west of the centerline of Second Avenue, 6.49 m (21.3 ft) east of the east face of the church, 0.24 m (0.8 ft) south of the north edge of the concrete slab. BENCH MARK STAMPING: CE 1 1930 DESIGNATION: 853 1991 TIDAL CE 1 MONUMENTATION: Tidal Station disk VM#: 330 AGENCY: US Coast & Geodetic Survey (USC&GS) IDB PID#: KU0804 SETTING CLASSIFICATION: Granite foundation OPUS PID: LATITUDE: 40° 18.2' N ( 40.30330) LONGITUDE: 73° 58.7' W ( -73.97830) The bench mark is a disk set vertically in the west face of the south column of the John A. Garfield Monument along Ocean Avenue just north of the fishing pier, 21.6 m (70.1 ft) west of the west curb of Ocean Avenue, 2.32 m (7.6 ft) west of the east face of the monument base, 0.34 m (1.1 ft) north of the south face of the monument base, and 0.21 m (0.7 ft) above ground.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 8 Station ID: 8531991 PUBLICATION DATE: 04/21/2003 Name: LONG BRANCH,FISHING PIER NJ NOAA Chart: 12324 Latitude: 40° 18.2' N ( 40.30330) USGS Quad: LONG BRANCH EAST Longitude: 73° 58.6' W ( -73.97670) T I D A L B E N C H M A R K S BENCH MARK STAMPING: L5 1930 ELEV 28.228 DESIGNATION: L 5 MONUMENTATION: Tidal Station disk VM#: 331 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: KU0807 SETTING CLASSIFICATION: Building foundation OPUS PID: LATITUDE: 40° 18.2' N ( 40.30330) LONGITUDE: 73° 59.3' W ( -73.98830) The bench mark is a disk set vertically in the NE corner of the post office building at the intersection of Third and Garfield Avenues, 16.00 m (52.5 ft) north of the centerline of the entrance to the post office, 13.29 m (43.6 ft) west of the centerline of Third Avenue, 0.24 m (0.8 ft) south of the NE corner of the building, and 0.58 m (1.9 ft) above ground.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 8 Station ID: 8531991 PUBLICATION DATE: 04/21/2003 Name: LONG BRANCH,FISHING PIER NJ NOAA Chart: 12324 Latitude: 40° 18.2' N ( 40.30330) USGS Quad: LONG BRANCH EAST Longitude: 73° 58.6' W ( -73.97670) T I D A L B E N C H M A R K S BENCH MARK STAMPING: TIDAL NO 2 1948 DESIGNATION: TIDAL 2 STA 28 MONUMENTATION: Tidal Station disk VM#: 332 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: KU0806 SETTING CLASSIFICATION: Flagpole foundation OPUS PID: LATITUDE: 40° 18.1' N ( 40.30170) LONGITUDE: 73° 59.2' W ( -73.98670) The bench mark is a disk set in the concrete flagpole base at the corner of Third and Chelsea Avenues, 24.29 m (79.7 ft) east of the centerline of Third Avenue, 19.99 m (65.6 ft) NNE of the centerline of Chelsea Avenue, and 8.32 m (27.3 ft) west of the centerline of the school entrance sidewalk. BENCH MARK STAMPING: 1991 B 1977 DESIGNATION: 853 1991 B MONUMENTATION: Tidal Station disk VM#: 335 AGENCY: National Ocean Survey (NOS) IDB PID#: SETTING CLASSIFICATION: Concrete walkway OPUS PID: LATITUDE: 40° 18.2' N ( 40.30330) LONGITUDE: 73° 58.6' W ( -73.97670) The bench mark is a disk set in the concrete walkway at the south side entrance to the fishing pier, 7.44 m (24.4 ft) SSW of the north face of the pier entrance, 5.97 m (19.6 ft) ESE of the west edge of the boardwalk, and 0.21 m (0.7 ft) NNE of the south face of the pier entrance.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 8 Station ID: 8531991 PUBLICATION DATE: 04/21/2003 Name: LONG BRANCH,FISHING PIER NJ NOAA Chart: 12324 Latitude: 40° 18.2' N ( 40.30330) USGS Quad: LONG BRANCH EAST Longitude: 73° 58.6' W ( -73.97670) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 1991 L 1978 DESIGNATION: 853 1991 L MONUMENTATION: Tidal Station disk VM#: 336 AGENCY: National Ocean Survey (NOS) IDB PID#: SETTING CLASSIFICATION: Concrete slab OPUS PID: LATITUDE: 40° 18.2' N ( 40.30330) LONGITUDE: 73° 58.7' W ( -73.97830) The bench mark is a disk set in a concrete slab on the west side of Ocean Avenue just south of the John A. Garfield Monument, 81.81 m (268.4 ft) north of the centerline of Laird Street, 33.68 m (110.5 ft) south of the SE corner the monument, 17.28 m (56.7 ft) west of the centerline of Ocean Avenue, and 7.53 m (24.7 ft) west of the west curb of Ocean Avenue. BENCH MARK STAMPING: 1991 M 1979 DESIGNATION: 853 1991 M MONUMENTATION: Tidal Station disk VM#: 337 AGENCY: National Ocean Survey (NOS) IDB PID#: SETTING CLASSIFICATION: Concrete wall foundation OPUS PID: LATITUDE: 40° 18.1' N ( 40.30170) LONGITUDE: 73° 58.8' W ( -73.98000) The bench mark is a disk set in the east wall foundation of the Tideaway Manor Restaurant on the south side of Chelsea Avenue, 18.35 m (60.2 ft) north of the north side of the steel door entrance on the east side of the restaurant, 15.70 m (51.5 ft) south of the centerline of Chelsea Avenue, 0.15 m (0.5 ft) east of the east wall of the building, and 0.21 m (0.7 ft) above ground.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 6 of 8 Station ID: 8531991 PUBLICATION DATE: 04/21/2003 Name: LONG BRANCH,FISHING PIER NJ NOAA Chart: 12324 Latitude: 40° 18.2' N ( 40.30330) USGS Quad: LONG BRANCH EAST Longitude: 73° 58.6' W ( -73.97670) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 1991 D 1980 DESIGNATION: 853 1991 D MONUMENTATION: Tidal Station disk VM#: 338 AGENCY: National Ocean Survey (NOS) IDB PID#: SETTING CLASSIFICATION: Stainless steel rod OPUS PID: LATITUDE: 40° 18.1' N ( 40.30170) LONGITUDE: 73° 59.1' W ( -73.98500) The bench mark is a disk located at the intersection of Chelsea Avenue and Memorial Parkway, 11.49 m (37.7 ft) north of the centerline of Chelsea Avenue, 8.56 m (28.1 ft) west of the centerline of Memorial Parkway, and 0.82 m (2.7 ft) east of the east face of the sidewalk. The bench mark is 6 cm (0.2 ft) below ground, crimped to a stainless steel rod driven 9.1 m (30 ft) to refusal, and encased in a 4 inch PVC pipe with concrete kickblock.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 7 of 8 Station ID: 8531991 PUBLICATION DATE: 04/21/2003 Name: LONG BRANCH,FISHING PIER NJ NOAA Chart: 12324 Latitude: 40° 18.2' N ( 40.30330) USGS Quad: LONG BRANCH EAST Longitude: 73° 58.6' W ( -73.97670) T I D A L D A T U M S Tidal datums at LONG BRANCH,FISHING PIER based on: LENGTH OF SERIES: 8 Years TIME PERIOD: January 1979 - December 1986 TIDAL EPOCH: 1983-2001 CONTROL TIDE STATION: 8531680 SANDY HOOK Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS: HIGHEST OBSERVED WATER LEVEL (01/02/1987) = 2.479 MEAN HIGHER HIGH WATER MHHW = 1.504 MEAN HIGH WATER MHW = 1.399 North American Vertical Datum NAVD88 = 0.819 MEAN SEA LEVEL MSL = 0.744 MEAN TIDE LEVEL MTL = 0.729 MEAN LOW WATER MLW = 0.058 MEAN LOWER LOW WATER MLLW = 0.000 LOWEST OBSERVED WATER LEVEL (01/10/1978) = -1.401 North American Vertical Datum (NAVD88) Bench Mark Elevation Information In METERS above: Stamping or Designation MLLW MHW TIDAL NO 1 1948 4.756 3.357 CE 1 1930 7.222 5.823 L5 1930 ELEV 28.228 9.052 7.653 TIDAL NO 2 1948 8.079 6.680 1991 B 1977 6.634 5.235 1991 L 1978 6.895 5.496 1991 M 1979 5.996 4.597 1991 D 1980 6.540 5.141
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 8 of 8 Station ID: 8531991 PUBLICATION DATE: 04/21/2003 Name: LONG BRANCH,FISHING PIER NJ NOAA Chart: 12324 Latitude: 40° 18.2' N ( 40.30330) USGS Quad: LONG BRANCH EAST Longitude: 73° 58.6' W ( -73.97670) 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.