U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 5 Station ID: 8639219 PUBLICATION DATE: 07/02/2003 Name: SOUTH END, LAKE RUDEE VA NOAA Chart: 12207 Latitude: 36° 49.5' N ( 36.82500) USGS Quad: VIRGINIA BEACH Longitude: 75° 58.9' W ( -75.98170) To reach the tidal bench marks from the south end of the bridge over Rudee Inlet in Virginia Beach, proceed south on General Booth Boulevard for 1.05 km (0.65 mi) to the entrance of Owl Creek Municipal Boat Ramp. The bench marks are in the vicinity of Owl Creek Municipal Boat Ramp and the bridge over Rudee Inlet. The tide gage and staff were on the end of the westernmost wood pier. T I D A L B E N C H M A R K S PRIMARY BENCH MARK STAMPING: 9219 A 1984 DESIGNATION: 863 9219 A MONUMENTATION: Tidal Station disk VM#: 3522 AGENCY: National Ocean Service (NOS) IDB PID#: SETTING CLASSIFICATION: Concrete monument OPUS PID: LATITUDE: 36° 49.4' N ( 36.82330) LONGITUDE: 75° 58.9' W ( -75.98170) The primary bench mark is a disk set in a concrete monument on the south side of the Owl Creek Municipal Boat Ramp parking lot, near the NW corner of the boat ramp, 18 m (59 ft) NNE of the SW corner piling of the westernmost wood pier, 11.8 m (38.7 ft) NW of the SE corner piling of the westernmost wood pier, 0.3 m (1 ft) west of the west edge of a concrete walk, and 0.1 m (0.3 ft) below ground level. BENCH MARK STAMPING: F 311 RESET 1967 DESIGNATION: 863 9219 F 311 RESET 1967 MONUMENTATION: Bench Mark disk VM#: 3519 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: FW0085 SETTING CLASSIFICATION: Bridge wing wall OPUS PID: LATITUDE: 36° 49.8' N ( 36.83000) LONGITUDE: 75° 58.4' W ( -75.97330) The bench mark is a disk set flush in a bridge wing wall at the SE end of Rudee Inlet Bridge, and 1.07 m (3.5 ft) above the level of the bridge floor.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 5 Station ID: 8639219 PUBLICATION DATE: 07/02/2003 Name: SOUTH END, LAKE RUDEE VA NOAA Chart: 12207 Latitude: 36° 49.5' N ( 36.82500) USGS Quad: VIRGINIA BEACH Longitude: 75° 58.9' W ( -75.98170) T I D A L B E N C H M A R K S BENCH MARK STAMPING: NO 6 1967 DESIGNATION: 863 9219 TIDAL 6 MONUMENTATION: Tidal Station disk VM#: 3520 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: FW0086 SETTING CLASSIFICATION: Concrete monument OPUS PID: LATITUDE: 36° 49.2' N ( 36.82000) LONGITUDE: 75° 58.9' W ( -75.98170) The bench mark is a disk set on top of a concrete monument on the NE side of Rudee Inlet Bridge, 2.90 m (9.5 ft) SW of a 0.2 m (0.5 ft) diameter pine tree, and 0.61 m (2.0 ft) east of the edge of the roadway. BENCH MARK STAMPING: 9219 B 1984 DESIGNATION: 863 9219 B MONUMENTATION: Tidal Station disk VM#: 3523 AGENCY: National Ocean Service (NOS) IDB PID#: SETTING CLASSIFICATION: Stainless steel rod OPUS PID: LATITUDE: 36° 49.4' N ( 36.82330) LONGITUDE: 75° 58.9' W ( -75.98170) The bench mark is a disk set on the south side of the Owl Creek Municipal Boat Ramp parking lot in a small marshy area, 28.65 m (94.0 ft) NW of the NW corner of the westernmost wood pier, 24.38 m (80.0 ft) NW of the NW corner of the boat ramp, 24.08 m (79.0 ft) NW of bench mark 9219 A 1984, 9.75 m (32.0 ft) south of the south edge of the parking lot, and 6.10 m (20.0 ft) west of the west edge of the parking lot. The bench mark crimped to the top of a stainless steel rod driven 12.2 m (40 ft), 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 Station ID: 8639219 PUBLICATION DATE: 07/02/2003 Name: SOUTH END, LAKE RUDEE VA NOAA Chart: 12207 Latitude: 36° 49.5' N ( 36.82500) USGS Quad: VIRGINIA BEACH Longitude: 75° 58.9' W ( -75.98170) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 9219 E 1984 DESIGNATION: 863 9219 E MONUMENTATION: Tidal Station disk VM#: 3526 AGENCY: National Ocean Service (NOS) IDB PID#: SETTING CLASSIFICATION: Stainless steel rod OPUS PID: LATITUDE: 36° 49.4' N ( 36.82330) LONGITUDE: 75° 58.9' W ( -75.98170) The bench mark is a disk set on the north side of the Owl Creek Municipal Boat Ramp parking lot on the edge of a marshy area, 18.59 m (61.0 ft) NE of a 0.1 m (0.3 ft) diameter pine tree, and 10.88 m (35.7 ft) north of the north edge of the parking lot. The bench mark is crimped to the top of a stainless steel rod driven 12.2 m (40 ft), 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 Station ID: 8639219 PUBLICATION DATE: 07/02/2003 Name: SOUTH END, LAKE RUDEE VA NOAA Chart: 12207 Latitude: 36° 49.5' N ( 36.82500) USGS Quad: VIRGINIA BEACH Longitude: 75° 58.9' W ( -75.98170) T I D A L D A T U M S Tidal datums at SOUTH END, LAKE RUDEE based on: LENGTH OF SERIES: 4 MONTHS TIME PERIOD: March 1984 - June 1984 TIDAL EPOCH: 1983-2001 CONTROL TIDE STATION: 8638610 SEWELLS POINT, HAMPTON ROADS Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS: MEAN HIGHER HIGH WATER MHHW = 1.182 MEAN HIGH WATER MHW = 1.079 North American Vertical Datum NAVD88 = 0.711 MEAN SEA LEVEL MSL = 0.569 MEAN TIDE LEVEL MTL = 0.563 MEAN LOW WATER MLW = 0.046 MEAN LOWER LOW WATER MLLW = 0.000 North American Vertical Datum (NAVD88) Bench Mark Elevation Information In METERS above: Stamping or Designation MLLW MHW 9219 A 1984 1.489 0.410 F 311 RESET 1967 11.464 10.385 NO 6 1967 7.998 6.919 9219 B 1984 1.903 0.824 9219 E 1984 1.971 0.892
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 5 Station ID: 8639219 PUBLICATION DATE: 07/02/2003 Name: SOUTH END, LAKE RUDEE VA NOAA Chart: 12207 Latitude: 36° 49.5' N ( 36.82500) USGS Quad: VIRGINIA BEACH Longitude: 75° 58.9' W ( -75.98170) 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.