U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 8 Station ID: 8516402 PUBLICATION DATE: 11/24/2014 Name: POINT LOOKOUT, JONES INLET NY NOAA Chart: 12352 Latitude: 40° 35.6' N ( 40.59389) USGS Quad: JONES INLET Longitude: 73° 35.0' W ( -73.58397) To reach the station from the intersection of Loop Parkway and Lido Boulevard on Long Beach Island, proceed E on Lido Boulevard 0.3 km (0.2 mi) to the intersection with Parkside road drive, turn left and proceed N 0.14 km (0.1 mi) on Parkside road drive to the town of Hempstead laboratory and the tide station on the left. Bench marks are near the tide station, along Lido Blvd. And at the US Coast Guard station. T I D A L B E N C H M A R K S PRIMARY BENCH MARK STAMPING: 11E02NAZ DESIGNATION: 11E 02N AZ MONUMENTATION: Flange-encased Rod VM#: 21128 AGENCY: NCDPW IDB PID#: KU4895 SETTING CLASSIFICATION: Stainless steel rod in sleeve OPUS PID#: KU4895 LATITUDE: 40° 35.6' N ( 40.59350) LONGITUDE: 73° 35.0' W ( -73.58386) The primary bench mark is a flange encased rod set in the sidewalk on the W side of Parkside road drive, 11.65 m (38.2 ft) E of the Town of Hempstead department of conservation and waterways laboratory building, 8.79 m (28.8 ft) NNE of the flagpole, 6.56 m (21.5 ft) W of the centerline of Parkside road drive, 3.25 m (10.7 ft) NNW of a power pole with tag Lipa 2-35 and 2.65 m (8.7 ft) SSW of a fire hydrant. The bench mark is set 14 cm (6 inches) below grade being the top of a stainless steel rod encased in a NCDPW logo cover. BENCH MARK STAMPING: 11E 02N 2001 DESIGNATION: 11E 02N RESET MONUMENTATION: Flange-encased Rod VM#: 21129 AGENCY: NCDPW IDB PID#: AM7043 SETTING CLASSIFICATION: Stainless steel rod in sleeve OPUS PID: LATITUDE: 40° 35.3' N ( 40.58797) LONGITUDE: 73° 35.0' W ( -73.58386) The bench mark is a flange encased rod set in the sidewalk on the W side of Parkside road drive, 42.18 m (138.4 ft) N of the stop sign at the intersection with Ocean Boulevard, 17.25 m (56.6 ft) SW of the power pole with metal tag NVT 19, 12.63 m (41.4 ft) S of the speed limit and no parking signs, 1.23 m (4.0 ft) E of a 1.2 m (3.9 ft) tall white stucco wall and 1.17 m (3.8 ft) W of the curb face. The bench mark is set 8 cm (3 inches) below grade being the top of a stainless steel rod encased in a NCDPW logo cover.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 8 Station ID: 8516402 PUBLICATION DATE: 11/24/2014 Name: POINT LOOKOUT, JONES INLET NY NOAA Chart: 12352 Latitude: 40° 35.6' N ( 40.59389) USGS Quad: JONES INLET Longitude: 73° 35.0' W ( -73.58397) T I D A L B E N C H M A R K S BENCH MARK STAMPING: A 493 NC DESIGNATION: A 493 MONUMENTATION: See descriptive text VM#: 21130 AGENCY: Unknown IDB PID#: KU1533 SETTING CLASSIFICATION: Copper plug in a concrete monument OPUS PID: LATITUDE: 40° 35.5' N ( 40.59203) LONGITUDE: 73° 34.8' W ( -73.57978) The bench mark is a copper plug in a concrete monument at the SW corner of the intersection, 8.58 m (28.1 ft) S of the centerline of lido boulevard, 8.03 m (26.3 ft) W of the centerline of Hewlett Avenue, 1.68 m (5.5 ft) E of a deciduous tree, 0.94 m (3.1 ft) S of the face of the curb, 0.67 m (2.2 ft) W of the sidewalk, 0.56 m (1.8 ft) N of the sidewalk and 0.46 m (1.5 ft) SE of a snow emergency and no parking sign.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 8 Station ID: 8516402 PUBLICATION DATE: 11/24/2014 Name: POINT LOOKOUT, JONES INLET NY NOAA Chart: 12352 Latitude: 40° 35.6' N ( 40.59389) USGS Quad: JONES INLET Longitude: 73° 35.0' W ( -73.58397) T I D A L B E N C H M A R K S BENCH MARK STAMPING: GUARD 1934 DESIGNATION: GUARD MONUMENTATION: Triangulation Station disk VM#: 21131 AGENCY: US Coast and Gedetic Survey IDB PID#: KU1530 SETTING CLASSIFICATION: Top of a concrete monument OPUS PID: LATITUDE: 40° 35.5' N ( 40.59144) LONGITUDE: 73° 34.9' W ( -73.58100) The bench mark is a disk in a concrete monument buried beneath the metal tower at the SE corner of the point lookout community church parking lot, 16.88 m (55.4 ft) ENE of the NE corner of the steps to the church, 6.94 m (22.8 ft) NW of the NE corner of the parsonage house, 2.31 m (7.6 ft) SW of the NE metal leg of the tower and 2.28 m (7.5 ft) NW of the SE metal leg of the tower, and 0.23 m (0.8 ft) below grade.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 8 Station ID: 8516402 PUBLICATION DATE: 11/24/2014 Name: POINT LOOKOUT, JONES INLET NY NOAA Chart: 12352 Latitude: 40° 35.6' N ( 40.59389) USGS Quad: JONES INLET Longitude: 73° 35.0' W ( -73.58397) T I D A L B E N C H M A R K S BENCH MARK STAMPING: GUARD NO 1 DESIGNATION: GUARD RM 1 MONUMENTATION: Reference Mark disk VM#: 21132 AGENCY: US Coast and Geodetic Survey IDB PID#: KU1531 SETTING CLASSIFICATION: Concrete apron OPUS PID: LATITUDE: 40° 35.5' N ( 40.59164) LONGITUDE: 73° 34.9' W ( -73.58111) The bench mark is a disk in a concrete apron on the W side of the church office building in the NW quarter of the parking lot, 27.47 m (90.1 ft) NNE of the NE corner of the stairs to the church, 24.20 m (79.4 ft) NNW of triangulation station guard, 3.20 m (10.5 ft) S of the NE corner of the building, 3.17 m (10.4 ft) SE of the SE corner of a storage shed, 1.46 m (4.8 ft) N of the SE Corner of the building, 0.72 m (2.4 ft) W of the building and 0.51 m (1.7 ft) N of the S edge of the concrete apron.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 8 Station ID: 8516402 PUBLICATION DATE: 11/24/2014 Name: POINT LOOKOUT, JONES INLET NY NOAA Chart: 12352 Latitude: 40° 35.6' N ( 40.59389) USGS Quad: JONES INLET Longitude: 73° 35.0' W ( -73.58397) T I D A L B E N C H M A R K S BENCH MARK STAMPING: GUARD NO 2 DESIGNATION: GUARD RM 2 MONUMENTATION: Reference Mark disk VM#: 21133 AGENCY: US Coast and Geodetic Survey IDB PID#: KU1532 SETTING CLASSIFICATION: Concrete pavement OPUS PID: LATITUDE: 40° 35.5' N ( 40.59144) LONGITUDE: 73° 34.9' W ( -73.58092) The bench mark is a disk set in concrete street, 26.50 m (86.9 ft) NNW of a fire hydrant on the E side of the street, 9.45 m (31.0 ft) NE of the NE corner of the parsonage house, 2.94 m (9.6 ft) W of the centerline of Garden City Avenue and 0.98 m (3.2 ft) E of the face of the curb.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 6 of 8 Station ID: 8516402 PUBLICATION DATE: 11/24/2014 Name: POINT LOOKOUT, JONES INLET NY NOAA Chart: 12352 Latitude: 40° 35.6' N ( 40.59389) USGS Quad: JONES INLET Longitude: 73° 35.0' W ( -73.58397) T I D A L B E N C H M A R K S BENCH MARK STAMPING: GAGING STATION DESIGNATION: GAGING STATION MONUMENTATION: Bench Mark disk VM#: 21134 AGENCY: US Geological Survey IDB PID#: SETTING CLASSIFICATION: Concrete slab OPUS PID: LATITUDE: 40° 35.6' N ( 40.59358) LONGITUDE: 73° 35.0' W ( -73.58411) The bench mark is disk set in a concrete slab, 18.88 m (61.9 ft) S of the new bulkhead, 9.87 m (32.4 ft) SW of the fence post on the N side of the vehicle gate, 2.24 m (7.3 ft) WSW of the center of the entrance door and 0.91 m (3.0 ft) N of the N side of the brick building.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 7 of 8 Station ID: 8516402 PUBLICATION DATE: 11/24/2014 Name: POINT LOOKOUT, JONES INLET NY NOAA Chart: 12352 Latitude: 40° 35.6' N ( 40.59389) USGS Quad: JONES INLET Longitude: 73° 35.0' W ( -73.58397) T I D A L D A T U M S Tidal datums at POINT LOOKOUT, JONES INLET based on: LENGTH OF SERIES: 3 MONTHS TIME PERIOD: May 2014 - July 2014 TIDAL EPOCH: 1983-2001 CONTROL TIDE STATION: 8531680 SANDY HOOK Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS: MEAN HIGHER HIGH WATER MHHW = 1.418 MEAN HIGH WATER MHW = 1.319 MEAN TIDE LEVEL MTL = 0.688 MEAN SEA LEVEL MSL = 0.681 MEAN LOW WATER MLW = 0.056 MEAN LOWER LOW WATER MLLW = 0.000 North American Vertical Datum (NAVD88) Bench Mark Elevation Information In METERS above: Stamping or Designation MLLW MHW 11E02NAZ 2.735 1.416 11E 02N 2001 3.748 2.429 A 493 NC 3.073 1.754 GUARD 1934 2.816 1.497 GUARD NO 1 3.108 1.789 GUARD NO 2 2.872 1.553 GAGING STATION 3.149 1.830
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 8 of 8 Station ID: 8516402 PUBLICATION DATE: 11/24/2014 Name: POINT LOOKOUT, JONES INLET NY NOAA Chart: 12352 Latitude: 40° 35.6' N ( 40.59389) USGS Quad: JONES INLET Longitude: 73° 35.0' W ( -73.58397) 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.