U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 8
Station ID: 8722212 PUBLICATION DATE: 01/04/2010
Name: FORT PIERCE, SOUTH JETTY
FL
NOAA Chart: 11474 Latitude: 27° 28.2' N ( 27.47000)
USGS Quad: FORT PIERCE Longitude: 80° 17.3' W ( -80.28830)
To reach the tidal bench marks from the intersection of U.S. Highway 1 and State
Road A1A South in Fort Pierce; proceed 4.02 km (2.5 mi) east on State Road A1A
to Fort Pierce Inlet and Jetty Park. The bench marks are located at Jetty Park.
The tide gage and staff were located on the south jetty about midway between
the shoreline and the ocean end of the jetty.
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: 8722212 PUBLICATION DATE: 01/04/2010
Name: FORT PIERCE, SOUTH JETTY
FL
NOAA Chart: 11474 Latitude: 27° 28.2' N ( 27.47000)
USGS Quad: FORT PIERCE Longitude: 80° 17.3' W ( -80.28830)
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: PIERCE 2 1963
DESIGNATION: PIERCE 2
MONUMENTATION: Bench Mark disk VM#: 5422
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: AF3220
SETTING CLASSIFICATION: Concrete monument OPUS PID:
LATITUDE: 27° 28.2' N ( 27.47000) LONGITUDE: 80° 17.5' W ( -80.29083)
The primary bench mark is a disk set in the top of the east edge of the concrete
sidewalk, about 0.18 m (0.6 ft) above the level of the road.50.90 m (167.0 ft)
south of the north bank of the park, 11.95 m (39.2 ft) NE of the SE corner of
the concrete foundation of the old Coast Guard lookout tower (tower is gone),
12.01 m (39.4 ft) east of R 34 34, 10.70 m (35.1 ft) east of the NE corner of
the concrete foundation, 3.75 m (12.3 ft) west of the approximate centerline of
Seaway Drive, and 0.30 m (1.0 ft) west of the east edge of the sidewalk.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 8
Station ID: 8722212 PUBLICATION DATE: 01/04/2010
Name: FORT PIERCE, SOUTH JETTY
FL
NOAA Chart: 11474 Latitude: 27° 28.2' N ( 27.47000)
USGS Quad: FORT PIERCE Longitude: 80° 17.3' W ( -80.28830)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: PIERCE 2 1963 NO 4 1971
DESIGNATION: PIERCE 2 RM 4
MONUMENTATION: Bench Mark disk VM#: 5421
AGENCY: National Geodetic Survey (NGS) IDB PID#: AF3223
SETTING CLASSIFICATION: Concrete monument OPUS PID:
LATITUDE: 27° 28.2' N ( 27.47028) LONGITUDE: 80° 17.4' W ( -80.29056)
The bench mark is a disk set in the top of a concrete monument projecting 0.40 m
(1.3 ft) above the level of the ground, 46.63 m (153.0 ft) north of Pierce 2,
36.36 m (119.3 ft) north of the approximate centerline of Seaway Drive, 3.44 m
(11.3 ft) NW of a concrete power pole, and 0.30 m (1.0 ft) south of a concrete
road barrier post.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 8
Station ID: 8722212 PUBLICATION DATE: 01/04/2010
Name: FORT PIERCE, SOUTH JETTY
FL
NOAA Chart: 11474 Latitude: 27° 28.2' N ( 27.47000)
USGS Quad: FORT PIERCE Longitude: 80° 17.3' W ( -80.28830)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: R 34 34
DESIGNATION: R 34
MONUMENTATION: Bench Mark disk VM#: 5423
AGENCY: Florida Department of Natural Resources
(FLDNR) IDB PID#: AF6644
SETTING CLASSIFICATION: Concrete monument OPUS PID:
LATITUDE: 27° 28.2' N ( 27.47000) LONGITUDE: 80° 17.5' W ( -80.29083)
The bench mark is a disk set in the top of a concrete monument projecting 0.30 m
(1.0 ft) above the level of the ground, 16.25 m (53.3 ft) west of the
approximate centerline of Seaway Drive, 12.01 m (39.4 ft) west of PIERCE 2, 7.16
m (23.5 ft) west of a light pole, and 1.43 m (4.7 ft) NW of the NE corner of the
old coast guard lookout towers concrete foundation (tower is now gone).
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 8
Station ID: 8722212 PUBLICATION DATE: 01/04/2010
Name: FORT PIERCE, SOUTH JETTY
FL
NOAA Chart: 11474 Latitude: 27° 28.2' N ( 27.47000)
USGS Quad: FORT PIERCE Longitude: 80° 17.3' W ( -80.28830)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: PIERCE 2 1963 NO 5 1971
DESIGNATION: PIERCE 2 RM 5
MONUMENTATION: Bench Mark disk VM#: 17204
AGENCY: National Geodetic Survey (NGS) IDB PID#: AF3221
SETTING CLASSIFICATION: Concrete curb OPUS PID:
LATITUDE: 27° 28.2' N ( 27.47000) LONGITUDE: 80° 17.4' W ( -80.29028)
The bench mark is a disk set in the top of the north concrete curb of Seaway
Drive projecting about 0.18 m (0.6 ft) above the level of the road, 19.20 m
(63.0 ft) WSW of a set of flag poles, 11.52 m (37.8 ft) west of a manhole cover,
9.78 m (32.1 ft) NE of another manhole cover, and 6.40 m (21.0 ft) north of the
approximate centerline of Seaway Drive.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 6 of 8
Station ID: 8722212 PUBLICATION DATE: 01/04/2010
Name: FORT PIERCE, SOUTH JETTY
FL
NOAA Chart: 11474 Latitude: 27° 28.2' N ( 27.47000)
USGS Quad: FORT PIERCE Longitude: 80° 17.3' W ( -80.28830)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: X 307 1970
DESIGNATION: X 307
MONUMENTATION: Bench Mark disk VM#: 19408
AGENCY: US Coast and Geodetic Survey
(NGS&GS) IDB PID#: AF3210
SETTING CLASSIFICATION: Concrete monument OPUS PID:
LATITUDE: 27° 26.8' N ( 27.44611) LONGITUDE: 80° 17.1' W ( -80.28556)
The bench mark is a disk set in the top of a concrete monument flush with the
ground and South Ocean Drive, 14.93 m (49.0 ft) west of the approximate
centerline of South Ocean Drive, 6.10 m (20.0 ft) south of the approximate
centerline of Coconut Drive, 0.61 m (2.0 ft) west of a wood power pole, and 0.30
m (1.0 ft) north of a carsonite witness post.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 7 of 8
Station ID: 8722212 PUBLICATION DATE: 01/04/2010
Name: FORT PIERCE, SOUTH JETTY
FL
NOAA Chart: 11474 Latitude: 27° 28.2' N ( 27.47000)
USGS Quad: FORT PIERCE Longitude: 80° 17.3' W ( -80.28830)
T I D A L D A T U M S
Tidal datums at FORT PIERCE, SOUTH JETTY based on:
LENGTH OF SERIES: 6 MONTHS
TIME PERIOD: June 1972 - November 1972
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 8723170 MIAMI BEACH (CITY PIER)
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
MEAN HIGHER HIGH WATER MHHW = 0.908
MEAN HIGH WATER MHW = 0.842
North American Vertical Datum NAVD88 = 0.824
MEAN SEA LEVEL MSL = 0.465
MEAN TIDE LEVEL MTL = 0.451
MEAN LOW WATER MLW = 0.061
MEAN LOWER LOW WATER MLLW = 0.000
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
PIERCE 2 1963 2.771 1.929
PIERCE 2 1963 NO 4 1971 2.656 1.814
R 34 34 2.937 2.095
PIERCE 2 1963 NO 5 1971 2.777 1.936
X 307 1970 1.891 1.049
Foot Notes:
Geodetic heights of the bench marks meet all NOAA/NOS/NGS quality control
standards for Second Order, Class 1 leveling. It is advised that a confirmation
set of levels be established for bench mark X 307 1970 to verify height
differences before using tidal bench mark elevation information.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 8 of 8
Station ID: 8722212 PUBLICATION DATE: 01/04/2010
Name: FORT PIERCE, SOUTH JETTY
FL
NOAA Chart: 11474 Latitude: 27° 28.2' N ( 27.47000)
USGS Quad: FORT PIERCE Longitude: 80° 17.3' W ( -80.28830)
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.