U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 5 PUBLICATION DATE: 06/28/1988 Station ID: 8534048 SUPERCEDED DATE: 04/21/2003 Name: BEACH HAVEN CREST, LITTLE EGG HARBOR NEW JERSEY NOAA Chart: 12324 Latitude: 39° 36.8' N USGS Quad: BEACH HAVEN Longitude: 74° 12.6' W To reach the tidal bench marks at Beach Haven Crest, proceed 0.4 mile (0.6 km) SW along Bay Avenue from the Long Beach Township Hall to the intersection of Bay Avenue and Jeannette Street, turn left and continue to the foot of Jeannette Street. The bench marks are in the vicinity of Jeannette Street (Seventy Eighth Street) and the sewage disposal plant. The tide gage and staff were at the Crest Marina pier. T I D A L B E N C H M A R K S PRIMARY BENCH MARK STAMPING: 4048 A 1976 MONUMENTATION: Survey Disk VM#: 2622 AGENCY: PID: SETTING CLASSIFICATION: Copper-clad Steel Rod The bench mark is set at the NW end of Jeannette Street, 60.7 feet (18.5 m) SE of the corner of the bulkhead of the Crest Marina, 21.8 feet (6.6 m) NE of the centerline of Jeannette Street, 16.4 feet (5.0 m) SE of the SE corner of Boat House #147, and 16.2 feet (4.9 m) NW of utility pole #P 10259. The bench mark is 0.2 foot (0.1 m) below ground level, crimped to a copper-clad steel rod driven 50 feet (15 m), and encased in a PVC pipe and concrete kickblock. BENCH MARK STAMPING: Y 66 1964 MONUMENTATION: Survey Disk VM#: 2621 AGENCY: PID#: JU0192 SETTING CLASSIFICATION: Concrete Sewer Foundation The bench mark is set in the top of the south corner of a 7x7 foot (2x2 m) square, 6 feet (2 m) deep concrete sewer outfall on piles, having 1-foot (0.3 m) thick walls and a manhole in the center, 145 feet (44 m) NW of the centerline of Bay Avenue, 13.0 feet (4.0 m) SW of the south corner of the main building of the disposal plant, and level with the road surface.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 5 PUBLICATION DATE: 06/28/1988 Station ID: 8534048 SUPERCEDED DATE: 04/21/2003 Name: BEACH HAVEN CREST, LITTLE EGG HARBOR NEW JERSEY NOAA Chart: 12324 Latitude: 39° 36.8' N USGS Quad: BEACH HAVEN Longitude: 74° 12.6' W T I D A L B E N C H M A R K S BENCH MARK STAMPING: 4048 B 1976 MONUMENTATION: Survey Disk VM#: 2623 AGENCY: PID: SETTING CLASSIFICATION: Copper-clad Steel Rod The bench mark is set at 114 Jeannette Street, 0.2 mile (0.3 km) NW along Jeannette Street from the intersection of Bay Avenue and Jeannette Street, 350 feet (107 m) SE of Bench Mark 4048 A 1976, 53.8 feet (16.4 m) south of utility pole #T 4462, 30.3 feet (9.2 m) SSW of the centerline of Jeannette Street, 24.2 feet (7.4 m) NE of the NW corner, and 11.5 feet (3.5 m) NW of the NE corner of the frame house at #114. The bench mark is 0.2 foot (0.1 m) below ground level, crimped to a copper-clad steel rod driven 50 feet (15 m), and encased in a PVC pipe and concrete kickblock. BENCH MARK STAMPING: 4048 C 1976 MONUMENTATION: Survey Disk VM#: 2624 AGENCY: PID: SETTING CLASSIFICATION: Copper-clad Steel Rod The bench mark is set at 28 Jeannette Street, 400 feet (122 m) NW along Jeannette Street from the intersection of Bay Avenue and Jeannette Street, 47.4 feet (14.4 m) south of utility pole #11317, 26.4 feet (8.0 m) SW of the centerline of the street, and 14.6 feet (4.4 m) east of the NW corner of the house. The bench mark is 0.2 foot (0.1 m) below ground level, crimped to a copper-clad steel rod driven 50 feet (15 m), and encased in a PVC pipe and concrete kickblock.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 5 PUBLICATION DATE: 06/28/1988 Station ID: 8534048 SUPERCEDED DATE: 04/21/2003 Name: BEACH HAVEN CREST, LITTLE EGG HARBOR NEW JERSEY NOAA Chart: 12324 Latitude: 39° 36.8' N USGS Quad: BEACH HAVEN Longitude: 74° 12.6' W T I D A L B E N C H M A R K S BENCH MARK STAMPING: 4048 D 1976 MONUMENTATION: Survey Disk VM#: 2625 AGENCY: PID#: AC7255 SETTING CLASSIFICATION: Copper-clad Steel Rod The bench mark is 400 feet (122 m) east of Bench Mark 4048 C 1976, 21.4 feet (6.5 m) NE of the north curb of Jeannette Street, 20.5 feet (6.2 m) NE of utility pole #P 7478, 11.5 feet (3.5 m) west of the catch basin on the west curb of Bay Avenue, and 6.0 feet (1.8 m) east of the SE corner of Antique Shop at 7712 Bay Avenue. The bench mark is 0.2 foot (0.1 m) below ground level, crimped to a copper-clad steel rod driven 50 feet (15 m), and encased in a PVC pipe and concrete kickblock.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 5 PUBLICATION DATE: 06/28/1988 Station ID: 8534048 SUPERCEDED DATE: 04/21/2003 Name: BEACH HAVEN CREST, LITTLE EGG HARBOR NEW JERSEY NOAA Chart: 12324 Latitude: 39° 36.8' N USGS Quad: BEACH HAVEN Longitude: 74° 12.6' W T I D A L D A T U M S Tidal datums at BEACH HAVEN CREST, LITTLE EGG HARBOR based on: LENGTH OF SERIES: 8 MONTHS TIME PERIOD: AUGUST 1976 - JUNE 1977 TIDAL EPOCH: 1960-1978 CONTROL TIDE STATION: 8557380 LEWES, DE Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in FEET: HIGHEST OBSERVED WATER LEVEL (10/01/1976) = 3.36 MEAN HIGHER HIGH WATER MHHW = 2.18 MEAN HIGH WATER MHW = 1.94 MEAN TIDE LEVEL MTL = 1.01 MEAN LOW WATER MLW = 0.08 MEAN LOWER LOW WATER MLLW = 0.00 LOWEST OBSERVED WATER LEVEL (12/13/1976) = -1.37 North American Vertical Datum (NAVD88) Bench Mark Elevation Information In FEET above: Stamping or Designation MLLW MHW 4048 A 1976 3.74 1.80 Y 66 1964 5.70 3.76 4048 B 1976 3.96 2.02 4048 C 1976 3.48 1.54 4048 D 1976 3.45 1.51
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 5 PUBLICATION DATE: 06/28/1988 Station ID: 8534048 SUPERCEDED DATE: 04/21/2003 Name: BEACH HAVEN CREST, LITTLE EGG HARBOR NEW JERSEY NOAA Chart: 12324 Latitude: 39° 36.8' N USGS Quad: BEACH HAVEN Longitude: 74° 12.6' W 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 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.