U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 5
Station ID: 8720554 PUBLICATION DATE: 08/25/2011
Name: VILANO BEACH (ICWW)
FL
NOAA Chart: 11488 Latitude: 29° 55.0' N ( 29.91670)
USGS Quad: ST AUGUSTINE Longitude: 81° 18.0' W ( -81.30000)
To reach the tidal bench marks from the intersection of Florida Highway 5A
(Marco Avenue) and Florida Highway A1A in St. Augustine, proceed 2.1 km (1.3 mi)
east on Florida Highway A1A to the east end of the A1A bridge over the Tolomato
River, thence to the Riverside Fish Camp on the north side of the highway. The
bench marks are located along Highway A1A. The tide gage and staff were located
on the Fish Camp Pier.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: 0554 A 1996
DESIGNATION: 872 0554 A
MONUMENTATION: Flange-encased Rod VM#: 17743
AGENCY: National Ocean Service (NOS) IDB PID#: DL5783
SETTING CLASSIFICATION: Stainless steel rod OPUS PID:
LATITUDE: 29° 55.0' N ( 29.91639) LONGITUDE: 81° 17.8' W ( -81.29667)
The primary bench mark is a flange-encased rod located 35.66 m (117.0 ft) NE of
the approximate centerline of Ferrol Road, 13.11 m (43.0 ft) south of the
centerline of Vilano Road, 5.18 m (17.0 ft) west of concrete light pole Number
36155199101 and 0.30 m (1.0 ft) north of a carsonite witness post. The datum
point is recessed 0.06 m (0.2 ft) below the level of the NOS logo cap, being the
top of a stainless steel rod driven into the ground, and encased in a 5-inch NGS
logo cap recessed 0.24 m (0.8 ft) below the level of the ground and below the
level of Vilano Road.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 5
Station ID: 8720554 PUBLICATION DATE: 08/25/2011
Name: VILANO BEACH (ICWW)
FL
NOAA Chart: 11488 Latitude: 29° 55.0' N ( 29.91670)
USGS Quad: ST AUGUSTINE Longitude: 81° 18.0' W ( -81.30000)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 78 79 A 39 RM NO 1
DESIGNATION: 78 79 A 39 RM 1
MONUMENTATION: Reference Mark disk VM#: 5200
AGENCY: Florida Department of Natural Resources
(FLDNR) IDB PID#: AQ2619
SETTING CLASSIFICATION: Concrete monument OPUS PID:
LATITUDE: 29° 55.2' N ( 29.92000) LONGITUDE: 81° 17.6' W ( -81.29361)
The bench mark is a disk set in the top of a 4-inch square prefabricated
concrete post imbedded in the ground, 0.30 m (1.0 ft) below the level of the
ground and below the level of State Road A1A (Coastal Highway), 55.47 m (182.0
ft) south of the centerline of Oak Avenue, 37.19 m (122.0 ft) north of the
centerline of Cedar Avenue, 8.53 m (28.0 ft) west of the centerline of State
Road A1A (Coastal Highway), 13.05 m (42.8 ft) south of survey mark 78 79 A39,
and 1.22 m (4.0 ft) east of a carsonite witness post.
BENCH MARK STAMPING: 0554 B 1996
DESIGNATION: 872 0554 B
MONUMENTATION: Bench Mark disk VM#: 17744
AGENCY: National Ocean Service (NOS) IDB PID#: DL5712
SETTING CLASSIFICATION: Concrete walkway OPUS PID:
LATITUDE: 29° 55.0' N ( 29.91611) LONGITUDE: 81° 17.8' W ( -81.29667)
The bench mark a disk set flush in the concrete walkway of the NW end of the
Vilano Beach fishing pier, located 208.48 m (684.0 ft) west of the east end of
the pier, 9.75 m (32.0 ft) NE of 872 0554 AQUA TRAK, 3.35 m (11.0 ft) north of
the centerline of the fishing pier and 1.22 m (4.0 ft) east of the NW end of the
pier.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 5
Station ID: 8720554 PUBLICATION DATE: 08/25/2011
Name: VILANO BEACH (ICWW)
FL
NOAA Chart: 11488 Latitude: 29° 55.0' N ( 29.91670)
USGS Quad: ST AUGUSTINE Longitude: 81° 18.0' W ( -81.30000)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 78 79 A38
DESIGNATION: 78 79 A 38
MONUMENTATION: Triangulation Station disk VM#: 19393
AGENCY: FL Department of Natural Resources
(FLDNR) IDB PID#: AJ4720
SETTING CLASSIFICATION: Concrete monument OPUS PID#: AJ4720
LATITUDE: 29° 55.6' N ( 29.92722) LONGITUDE: 81° 17.8' W ( -81.29583)
The bench mark is a disk set in the top of a concrete monument located 27.92 m
(91.6 ft) south of the approximate centerline of a drive at 3260, 9.78 m (32.1
ft) east of the centerline of State Road A1A (Coastal Highway) and 0.30 m (1.0
ft) west of a carsonite witness post, and recessed 0.24 m (0.8 ft) below the
level of the ground and below the level of State Road A1A (Coastal Highway).
BENCH MARK STAMPING: 78 79 A39
DESIGNATION: 78 79 A 39
MONUMENTATION: Triangulation Station disk VM#: 19394
AGENCY: FL Department of Natural Resources
(FLDNR) IDB PID#: AJ4719
SETTING CLASSIFICATION: Concrete monument OPUS PID:
LATITUDE: 29° 55.2' N ( 29.92000) LONGITUDE: 81° 17.6' W ( -81.29361)
The bench mark is a disk set in the top of a concrete monument recessed 0.30 m
(1.0 ft) below the level of the ground and below the level of State Road A1A
(Coastal Highway), 49.99 m (164.0 ft) north of the centerline of Cedar Avenue,
32.52 m (139.5 ft) south of the centerline of Oak Avenue, 13.05 m (42.8 ft)
north of survey mark 78 79 A39 RM NO 1, 7.77 m (25.5 ft) west of the centerline
of State Road A1A (Coastal Highway), 1.83 m (6.0 ft) ESE of power pole Number
36156391600, and 0.46 m (1.5 ft) east of a carsonite witness post.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 5
Station ID: 8720554 PUBLICATION DATE: 08/25/2011
Name: VILANO BEACH (ICWW)
FL
NOAA Chart: 11488 Latitude: 29° 55.0' N ( 29.91670)
USGS Quad: ST AUGUSTINE Longitude: 81° 18.0' W ( -81.30000)
T I D A L D A T U M S
Tidal datums at VILANO BEACH (ICWW) based on:
LENGTH OF SERIES: 10 MONTHS
TIME PERIOD: October 2003 - July 2004
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 8720218 BAR PILOTS DOCK, ST JOHNS RIVER
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
MEAN HIGHER HIGH WATER MHHW = 1.449
MEAN HIGH WATER MHW = 1.347
North American Vertical Datum NAVD88 = 0.880
MEAN SEA LEVEL MSL = 0.710
MEAN TIDE LEVEL MTL = 0.701
MEAN LOW WATER MLW = 0.054
MEAN LOWER LOW WATER MLLW = 0.000
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
0554 A 1996 2.451 1.104
78 79 A 39 RM NO 1 2.997 1.650
0554 B 1996 4.728 3.381
78 79 A38 4.157 2.810
78 79 A39 3.032 1.685
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 5
Station ID: 8720554 PUBLICATION DATE: 08/25/2011
Name: VILANO BEACH (ICWW)
FL
NOAA Chart: 11488 Latitude: 29° 55.0' N ( 29.91670)
USGS Quad: ST AUGUSTINE Longitude: 81° 18.0' W ( -81.30000)
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.