U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 5
PUBLICATION DATE: 12/09/1987
Station ID: 8722125 SUPERCEDED DATE: 04/21/2003
Name: VERO BEACH, INDIAN RIVER
FLORIDA
NOAA Chart: 11474 Latitude: 27° 38.0' N
USGS Quad: VERO BEACH Longitude: 80° 22.5' W
To reach the tidal bench marks from the intersection of U.S. Highway 1 and 17th
Street in Vero Beach, proceed 0.85 mile (1.37 km) east on 17th Street to the
Vero Beach Municipal Power Plant gate, then 0.15 mile (0.24 km) east to the oil
barge basin. The bench marks are in the vicinity of the power plant. The tide
gage and staff were located on the power plant barge basin bulkhead.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: NO 1 1972
MONUMENTATION: Survey Disk VM#: 5411
AGENCY: PID#: AF6802
SETTING CLASSIFICATION: Concrete Sea Wall
The bench mark is set on the south concrete wall of the power plant water intake
structure, 80.3 feet (24.5 m) SSW of the NW corner of the north sea wall of the
barge basin, 9.4 feet (2.9 m) east of the junction of the sluice gate wall and
the concrete platform supporting the pumps, 3.2 feet (1.0 m) east of the sluice
gate, 0.9 foot (0.3 m) east of the west end of the sluice gate wall, and 2 feet
(1 m) above ground level.
BENCH MARK STAMPING: NO 2 1972
MONUMENTATION: Survey Disk VM#: 5412
AGENCY: PID#: AF6801
SETTING CLASSIFICATION: Concrete Sea Wall
The bench mark is set flush in the north sea wall of the barge basin, 81.5 feet
(24.8 m) NNE of Bench Mark NO 1 1972, 10.0 feet (3.0 m) south of the centerline
of the paved dockside loading area, and 1.6 feet (0.5 m) east of the west end of
the north seawall.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 5
PUBLICATION DATE: 12/09/1987
Station ID: 8722125 SUPERCEDED DATE: 04/21/2003
Name: VERO BEACH, INDIAN RIVER
FLORIDA
NOAA Chart: 11474 Latitude: 27° 38.0' N
USGS Quad: VERO BEACH Longitude: 80° 22.5' W
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 2125 A 1980 BSM
MONUMENTATION: Survey Disk VM#: 5413
AGENCY: PID#: AF6931
SETTING CLASSIFICATION: Concrete Monument
The bench mark is set in the top of a concrete monument, 63.4 feet (19.3 m) east
of the SW corner of a fence, 25.3 feet (7.7 m) north of the westbound lane of
17th Street, 4.6 feet (1.4 m) south of the south side of the power plant fence,
1.8 feet (0.5 m) north of the north side of a 3-foot (1 m) high concrete rail,
1.6 feet (0.5 m) north of a witness post, and level with the ground.
BENCH MARK STAMPING: 2125 B 1980 BSM
MONUMENTATION: Survey Disk VM#: 5414
AGENCY: PID#: AF6932
SETTING CLASSIFICATION: Concrete Monument
The bench mark is set in the top of a concrete monument, 83.7 feet (25.5 m) east
of the centerline of the northbound lane of Indian River Boulevard, 39.5 feet
(12.0 m) NE of a fire hydrant, 33.6 feet (10.2 m) south of the centerline of the
eastbound lane of 17th Street, 13.9 feet (4.2 m) west of the NW corner of the
sewage treatment plant fence, 6.8 feet (2.1 m) east of a 2-foot (1 m) square
concrete utility pole, 1.5 feet (0.5 m) north of a witness post, and 0.5 foot
(0.2 m) below the ground.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 5
PUBLICATION DATE: 12/09/1987
Station ID: 8722125 SUPERCEDED DATE: 04/21/2003
Name: VERO BEACH, INDIAN RIVER
FLORIDA
NOAA Chart: 11474 Latitude: 27° 38.0' N
USGS Quad: VERO BEACH Longitude: 80° 22.5' W
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 2125 C 1980 BSM
MONUMENTATION: Survey Disk VM#: 5415
AGENCY: PID#: AF6933
SETTING CLASSIFICATION: Concrete Monument
The bench mark is set flush in the top of a concrete guardrail, 259.0 feet (78.9
m) east of Bench Mark 2125 B 1980 BSM, 23.4 feet (7.1 m) south of the centerline
of the eastbound lane of the 17th Street bridge, 45.8 feet (14.0 m) SSW of the
first street light on the west end of the bridge, 1.1 feet (0.3 m) east of the
SW corner of the bridge, and 2.8 feet (0.9 m) above the road surface.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 5
PUBLICATION DATE: 12/09/1987
Station ID: 8722125 SUPERCEDED DATE: 04/21/2003
Name: VERO BEACH, INDIAN RIVER
FLORIDA
NOAA Chart: 11474 Latitude: 27° 38.0' N
USGS Quad: VERO BEACH Longitude: 80° 22.5' W
T I D A L D A T U M S
Tidal datums at VERO BEACH, INDIAN RIVER based on:
LENGTH OF SERIES: 3 MONTHS
TIME PERIOD: JUNE-AUGUST 1972
TIDAL EPOCH: 1960-1978
CONTROL TIDE STATION: 8722029 SEBASTIAN
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in FEET:
HIGHEST OBSERVED WATER LEVEL (05/27/1972) = 1.82
MEAN HIGHER HIGH WATER MHHW = 1.03
MEAN HIGH WATER MHW = 0.91
MEAN TIDE LEVEL MTL = 0.51
MEAN LOW WATER MLW = 0.11
MEAN LOWER LOW WATER MLLW = 0.00
LOWEST OBSERVED WATER LEVEL (07/30/1972) = -0.56
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In FEET above:
Stamping or Designation MLLW MHW
NO 1 1972 8.08 7.17
NO 2 1972 7.04 6.13
2125 A 1980 BSM 6.65 5.74
2125 B 1980 BSM 6.68 5.77
2125 C 1980 BSM 15.69 14.78
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 5
PUBLICATION DATE: 12/09/1987
Station ID: 8722125 SUPERCEDED DATE: 04/21/2003
Name: VERO BEACH, INDIAN RIVER
FLORIDA
NOAA Chart: 11474 Latitude: 27° 38.0' N
USGS Quad: VERO BEACH Longitude: 80° 22.5' 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.