U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 8 Station ID: 8516881 PUBLICATION DATE: 12/12/2014 Name: FAR ROCKAWAY, ATLANTIC BEACH NY NOAA Chart: 12350 Latitude: 40° 35.7' N ( 40.59500) USGS Quad: LAWRENCE Longitude: 73° 44.6' W ( -73.74330) To reach the tide station from the toll plaza on the Atlantic Beach bridge, proceed south 0.7 km (0.4 mi) over the bridge to Atlantic Boulevard, turn right and proceed 0.6 km (0.4 mi) W on Atlantic Boulevard to the intersection with El Dorado street, turn right and proceed 0.3 km (0.2 mi) N to the end of El Dorado street and the station on the right. Bench marks are along El Dorado street, Acapulco street, park street and Ocean Boulevard. 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: 8516881 PUBLICATION DATE: 12/12/2014 Name: FAR ROCKAWAY, ATLANTIC BEACH NY NOAA Chart: 12350 Latitude: 40° 35.7' N ( 40.59500) USGS Quad: LAWRENCE Longitude: 73° 44.6' W ( -73.74330) T I D A L B E N C H M A R K S PRIMARY BENCH MARK STAMPING: X 349 1952 DESIGNATION: X 349 MONUMENTATION: Bench Mark disk VM#: 21091 AGENCY: US Coast and Geodetic Survey IDB PID#: KU1331 SETTING CLASSIFICATION: Bridge pier OPUS PID: LATITUDE: 40° 35.5' N ( 40.59197) LONGITUDE: 73° 44.2' W ( -73.73706) The primary bench mark is a disk set vertically in the E side of the E most concrete bridge pier on the S side of the street, 21.15 m (69.4 ft) E of the W most bridge pier in this row, 16.53 m (54.2 ft) N of the NE corner of the bridge abutment, 8.09 m (26.5 ft) WNW of the fence corner, 6.88 m (22.6 ft) S of the road centerline and 0.51 m (1.7 ft) above the ground.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 8 Station ID: 8516881 PUBLICATION DATE: 12/12/2014 Name: FAR ROCKAWAY, ATLANTIC BEACH NY NOAA Chart: 12350 Latitude: 40° 35.7' N ( 40.59500) USGS Quad: LAWRENCE Longitude: 73° 44.6' W ( -73.74330) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 03E02N DESIGNATION: 03E 02N MONUMENTATION: Flange-encased Rod VM#: 21088 AGENCY: New York State Department of Public Works IDB PID#: KU4583 SETTING CLASSIFICATION: Stainless steel rod in sleeve OPUS PID#: KU4583 LATITUDE: 40° 35.2' N ( 40.58664) LONGITUDE: 73° 43.5' W ( -73.72514) The bench mark is a stainless steel rod in a sleeve set near the center of the ocean boulevard, 25.54 m (83.8 ft) W of a parking sign, 20.83 m (68.3 ft) S of a fire hydrant, 17.29 m (56.7 ft) SSW of the Oneida avenue and ocean boulevard street sign and 15.41 m (50.6 ft) NW of a power pole. The bench mark is set 16 cm (6 inches) below the street encased in a pipe with NYDPW logo cap.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 8 Station ID: 8516881 PUBLICATION DATE: 12/12/2014 Name: FAR ROCKAWAY, ATLANTIC BEACH NY NOAA Chart: 12350 Latitude: 40° 35.7' N ( 40.59500) USGS Quad: LAWRENCE Longitude: 73° 44.6' W ( -73.74330) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 03E02NAZ DESIGNATION: 03E 02N AZ MONUMENTATION: Flange-encased Rod VM#: 21089 AGENCY: New York State Department of Public Works IDB PID#: KU4597 SETTING CLASSIFICATION: Stainless steel rod in sleeve OPUS PID: LATITUDE: 40° 35.2' N ( 40.58689) LONGITUDE: 73° 43.7' W ( -73.72817) The bench mark is a stainless steel rod set near the center of ocean boulevard, 18.68 m (61.3 ft) E of a permit parking sign, 17.49 m (57.4 ft) SE of a fire hydrant, 13.73 m (45.0 ft) N of a power pole with light and 11.85 m (38.9 ft) S of the ocean boulevard and kings avenue street sign. The bench mark is set 14 cm (6 inches) below the street being the top of a stainless steel rod encased in a pipe with NYDPW logo cap.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 8 Station ID: 8516881 PUBLICATION DATE: 12/12/2014 Name: FAR ROCKAWAY, ATLANTIC BEACH NY NOAA Chart: 12350 Latitude: 40° 35.7' N ( 40.59500) USGS Quad: LAWRENCE Longitude: 73° 44.6' W ( -73.74330) T I D A L B E N C H M A R K S BENCH MARK STAMPING: Y 349 1952 DESIGNATION: Y 349 MONUMENTATION: Bench Mark disk VM#: 21090 AGENCY: US Coast and Geodetic Survey IDB PID#: KU1336 SETTING CLASSIFICATION: Set in sidewalk OPUS PID: LATITUDE: 40° 35.3' N ( 40.58897) LONGITUDE: 73° 43.7' W ( -73.72900) The bench mark is a disk set in the sidewalk at the SW corner of the intersection, 9.50 m (31.2 ft) W of the center median for Jefferson street, 5.94 m (19.5 ft) N of a fire hydrant, 3.86 m (12.7 ft) N of a power pole, 0.53 m (1.7 ft) N of a metal post for a pedestrian walk button and 0.52 m (1.7 ft) S of the S side of a storm drain in the curb. BENCH MARK STAMPING: 6881 A 2014 DESIGNATION: 851 6881 A MONUMENTATION: Bench Mark disk VM#: 21092 AGENCY: National Ocean Service IDB PID#: SETTING CLASSIFICATION: Concrete loading dock OPUS PID: LATITUDE: 40° 35.5' N ( 40.59222) LONGITUDE: 73° 44.5' W ( -73.74089) The bench mark is a disk set in a concrete loading dock facing on el dorado street, 17.09 m (56.1 ft) S of the E side of a circular concrete water filter pond, 8.28 m (27.2 ft) W of the centerline of El Dorado street, 4.30 m (14.1 ft) S of the NE corner of the brick building the loading dock is attached to, 3.95 m (13.0 ft) NNW of a power pole, 1.34 m (4.4 ft) SW of the center of a chain link gate, 1.10 m (3.6 ft) N of the SE corner of the brick building, 0.30 m (1.0 ft) E of the side of the brick building and 0.90 m (3.0 ft) above the sidewalk.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 6 of 8 Station ID: 8516881 PUBLICATION DATE: 12/12/2014 Name: FAR ROCKAWAY, ATLANTIC BEACH NY NOAA Chart: 12350 Latitude: 40° 35.7' N ( 40.59500) USGS Quad: LAWRENCE Longitude: 73° 44.6' W ( -73.74330) T I D A L B E N C H M A R K S BENCH MARK STAMPING: LONG BEACH NO 3 934 DESIGNATION: LONG BEACH RM 3 MONUMENTATION: Tidal Station disk VM#: 21093 AGENCY: US Coast and Geodetic Survey IDB PID#: SETTING CLASSIFICATION: Concrete apron OPUS PID: LATITUDE: 40° 35.5' N ( 40.59233) LONGITUDE: 73° 44.4' W ( -73.74067) The bench mark is a disk set in the concrete apron for the Atlantic Beach Rescue boat house, 44.37 m (145.6 ft) S of the wooden dock, 13.31 m (43.7 ft) S of the N side of the gate in the fence along the W side of the property, 5.05 m (16.6 ft) WNW of the NE corner of the building and 1.76 m (5.8 ft) NE of the NW corner of the building.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 7 of 8 Station ID: 8516881 PUBLICATION DATE: 12/12/2014 Name: FAR ROCKAWAY, ATLANTIC BEACH NY NOAA Chart: 12350 Latitude: 40° 35.7' N ( 40.59500) USGS Quad: LAWRENCE Longitude: 73° 44.6' W ( -73.74330) T I D A L D A T U M S Tidal datums at FAR ROCKAWAY, ATLANTIC BEACH 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 = 1.493 MEAN HIGH WATER MHW = 1.390 North American Vertical Datum NAVD88 = 0.872 MEAN TIDE LEVEL MTL = 0.724 MEAN SEA LEVEL MSL = 0.720 MEAN LOW WATER MLW = 0.058 MEAN LOWER LOW WATER MLLW = 0.000 North American Vertical Datum (NAVD88) Bench Mark Elevation Information In METERS above: Stamping or Designation MLLW MHW X 349 1952 4.113 2.723 03E02N 4.182 2.792 03E02NAZ 3.838 2.448 Y 349 1952 3.190 1.800 6881 A 2014 4.486 3.096 LONG BEACH NO 3 934 3.642 2.252
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 8 of 8 Station ID: 8516881 PUBLICATION DATE: 12/12/2014 Name: FAR ROCKAWAY, ATLANTIC BEACH NY NOAA Chart: 12350 Latitude: 40° 35.7' N ( 40.59500) USGS Quad: LAWRENCE Longitude: 73° 44.6' W ( -73.74330) 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.