U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 7
Station ID: 8721191 PUBLICATION DATE: 01/06/2004
Name: EDGEWATER, INDIAN RIVER
FL
NOAA Chart: 11484 Latitude: 28° 59.3' N ( 28.98830)
USGS Quad: EDGEWATER Longitude: 80° 54.0' W ( -80.90000)
To reach the tidal bench marks from the intersection of U.S. Highway 1
(Ridgewood Avenue) and Park Avenue in Edgewater, proceed east on Park Avenue for
0.3 km (0.2 mi) to Riverside Drive, then north on Riverside Drive to the dirt
road leading east to the Recreational area. The bench marks are located along
Ridgewood Avenue and Park Avenue, and near the shuffleboard court on Riverside
Drive. The tide gage and staff were located on the SE corner of the concrete
sea wall which surrounds the recreation area.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: 1191 A 1978 CLB
DESIGNATION: 872 1191 A TIDAL
MONUMENTATION: Bench Mark disk VM#: 5304
AGENCY: Florida Department of Natural Resources
(FLDNR) IDB PID#: AK5410
SETTING CLASSIFICATION: Concrete monument OPUS PID:
LATITUDE: 28° 59.6' N ( 28.99330) LONGITUDE: 80° 54.3' W ( -80.90500)
The primary bench mark is a disk set flush in the top of a concrete monument
located across the street from the eastern end of Park Avenue, 44.20 m (145.0
ft) SE of the SE corner of the Edgewater City Hall, 6.46 m (21.2 ft) east of the
centerline of Riverside Drive, 0.43 m (1.4 ft) north of a power pole, 0.37 m
(1.2 ft) west of a white 1 m (3 ft) high wooden fence that surrounds the area,
0.30 m (1.0 ft) west of a witness post, and 0.09 m (0.3 ft) below ground level.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 7
Station ID: 8721191 PUBLICATION DATE: 01/06/2004
Name: EDGEWATER, INDIAN RIVER
FL
NOAA Chart: 11484 Latitude: 28° 59.3' N ( 28.98830)
USGS Quad: EDGEWATER Longitude: 80° 54.0' W ( -80.90000)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: U 211 1963
DESIGNATION: U 211
MONUMENTATION: Bench Mark disk VM#: 5302
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: AK0500
SETTING CLASSIFICATION: Concrete monument OPUS PID#: AK0500
LATITUDE: 28° 59.9' N ( 28.99830) LONGITUDE: 80° 54.7' W ( -80.91170)
The bench mark is a disk set flush in the top of a concrete monument located in
the median strip of U.S. Highway 1, 0.5 km (0.3 mi) north of the Edgewater
Methodist Church midway between Monson Drive and Rio Vista Drive, 70.41 (231.0
ft) south of the center of Oak Ridge Avenue, 6.31 m (20.7 ft) east of the
centerline of the southbound lanes of the highway, 6.00 m (19.7 ft) west of the
centerline of the nothbound lanes of the highway, 2.29 m (7.5 ft) east of the
east curb of the median, 0.40 m (1.3 ft) south of a witness post.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 7
Station ID: 8721191 PUBLICATION DATE: 01/06/2004
Name: EDGEWATER, INDIAN RIVER
FL
NOAA Chart: 11484 Latitude: 28° 59.3' N ( 28.98830)
USGS Quad: EDGEWATER Longitude: 80° 54.0' W ( -80.90000)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: Y 211 1963
DESIGNATION: Y 211
MONUMENTATION: Bench Mark disk VM#: 5303
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: AK0503
SETTING CLASSIFICATION: Copper-clad steel rod OPUS PID#: AK0503
LATITUDE: 28° 59.2' N ( 28.98670) LONGITUDE: 80° 54.2' W ( -80.90330)
The bench mark is a disk located at the intersection of US Highway 1 and Woodley
Avenue, near the NE corner of the Edgewater cemetery, 10.09 m (33.1 ft) SE of
the extended centerline of Woodley Avenue, 8.60 m (28.2 ft) SW of the centerline
of the southbound lanes of the highway, 1.71 m (5.6 ft) west of utility pole
#46688062005, and 0.30 m (1.0 ft) NE of a witness post. The bench mark is set
0.09 m (0.3 ft) above ground level, crimped to the top of a copper-clad steel
rod driven 32.3 m (106 ft) to refusal, and encased in a 4-inch metal pipe.
BENCH MARK STAMPING: 1191 B 1978 CLB
DESIGNATION: 872 1191 B TIDAL
MONUMENTATION: Bench Mark disk VM#: 5305
AGENCY: Florida Department of Natural Resources
(FLDNR) IDB PID#: AK5409
SETTING CLASSIFICATION: Concrete monument OPUS PID:
LATITUDE: 28° 59.6' N ( 28.99330) LONGITUDE: 80° 54.3' W ( -80.90500)
The bench mark is a disk set flush in the top of a concrete monument located
near the intersection of Park Avenue and Park Place, 9 m (30 ft) south of the
centerline of Park Avenue, 5.55 m (18.2 ft) east of the centerline of Park
Place, 1.01 m (3.3 ft) SSE of the street sign at the intersection of Park Avenue
and Park Place, 0.76 m (2.5 ft) west of a 0.09 m (0.3 ft) high concrete ridge,
0.30 m (1.0 ft) north of a witness post, and 0.09 m (0.3 ft) below ground
level.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 7
Station ID: 8721191 PUBLICATION DATE: 01/06/2004
Name: EDGEWATER, INDIAN RIVER
FL
NOAA Chart: 11484 Latitude: 28° 59.3' N ( 28.98830)
USGS Quad: EDGEWATER Longitude: 80° 54.0' W ( -80.90000)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 1191 C 1978 CLB
DESIGNATION: 872 1191 C TIDAL
MONUMENTATION: Bench Mark disk VM#: 5306
AGENCY: Florida Department of Natural Resources
(FLDNR) IDB PID#: AK5408
SETTING CLASSIFICATION: Concrete monument OPUS PID:
LATITUDE: 28° 59.5' N ( 28.99170) LONGITUDE: 80° 54.7' W ( -80.91170)
The bench mark is a disk set flush in the top of a concrete monument located at
the SW corner of the intersection of Park Avenue and U.S. Highway 1 (Ridgewood
Avenue), 11.80 m (38.7 ft) SE of the centerline of Park Avenue, 7 m (23 ft) SW
of the centerline of the southbound lanes of U.S. Highway 1, 2.77 m (9.1 ft)
SSE of a concrete power pole, 0.40 m (1.3 ft) SE of a utility pole, 0.30 m (1.0
ft) SW of a witness post, and 0.09 m (0.3 ft) below the ground.
BENCH MARK STAMPING: 1191 D 1978 CLB
DESIGNATION: 872 1191 D TIDAL
MONUMENTATION: Bench Mark disk VM#: 5307
AGENCY: Florida Department of Natural Resources
(FLDNR) IDB PID#: AK5407
SETTING CLASSIFICATION: Concrete monument OPUS PID#: AK5407
LATITUDE: 28° 59.3' N ( 28.98830) LONGITUDE: 80° 54.5' W ( -80.90830)
The bench mark is a disk set flush in the top of a concrete monument located
near the intersection of Ridgewood Avenue and East Ocean Avenue, 24.14 m (79.2
ft) ESE of the SE corner of the Edgewater Post Office, 6.86 m (22.5 ft) west of
the centerline of the southbound lane of Ridgewood Avenue, 6.40 m (21.0 ft)
south of the centerline of the south driveway for the Post Office, 1.28 m (4.2
ft) south of a power pole, 0.30 m (1.0 ft) east of a witness post, and 0.27 m
(0.9 ft) below ground level.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 7
Station ID: 8721191 PUBLICATION DATE: 01/06/2004
Name: EDGEWATER, INDIAN RIVER
FL
NOAA Chart: 11484 Latitude: 28° 59.3' N ( 28.98830)
USGS Quad: EDGEWATER Longitude: 80° 54.0' W ( -80.90000)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 1191 JLP 1978
DESIGNATION: 872 1191 JLP TIDAL
MONUMENTATION: Tidal Station disk VM#: 5308
AGENCY: National Ocean Survey (NOS) IDB PID#: AK5411
SETTING CLASSIFICATION: Copper-clad steel rod OPUS PID:
LATITUDE: 28° 59.7' N ( 28.99500) LONGITUDE: 80° 54.2' W ( -80.90330)
The bench mark is a disk located near the basketball court in the Edgewater City
Park across from the City Hall Building, 30 m (100 ft) north of the south edge
of the sea wall, 24 m (79 ft) SW of the centerline of the boat ramp, and 5.67 m
(18.6 ft) SE of the NE corner of the concrete basketball court. The bench mark
is set at ground level, crimped to the top of a copper-clad steel rod driven
14.6 m (48 ft) and encased in a PVC pipe and concrete kickblock. NOTE: Mark not
found in 1991 by National Geodetic Survey.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 6 of 7
Station ID: 8721191 PUBLICATION DATE: 01/06/2004
Name: EDGEWATER, INDIAN RIVER
FL
NOAA Chart: 11484 Latitude: 28° 59.3' N ( 28.98830)
USGS Quad: EDGEWATER Longitude: 80° 54.0' W ( -80.90000)
T I D A L D A T U M S
Tidal datums at EDGEWATER, INDIAN RIVER based on:
LENGTH OF SERIES: 1 MONTH
TIME PERIOD: March 1979 - March 1979
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 8720030 FERNANDINA BEACH, AMELIA RIVER
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
MEAN HIGHER HIGH WATER MHHW = 0.686
MEAN HIGH WATER MHW = 0.624
North American Vertical Datum NAVD88 = 0.460
MEAN TIDE LEVEL MTL = 0.321
MEAN SEA LEVEL MSL = 0.310
MEAN LOW WATER MLW = 0.018
MEAN LOWER LOW WATER MLLW = 0.000
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
1191 A 1978 CLB 1.620 0.996
U 211 1963 4.357 3.733
Y 211 1963 4.947 4.323
1191 B 1978 CLB 3.689 3.065
1191 C 1978 CLB 4.770 4.146
1191 D 1978 CLB 4.009 3.385
1191 JLP 1978 1.403 0.779
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 7 of 7
Station ID: 8721191 PUBLICATION DATE: 01/06/2004
Name: EDGEWATER, INDIAN RIVER
FL
NOAA Chart: 11484 Latitude: 28° 59.3' N ( 28.98830)
USGS Quad: EDGEWATER Longitude: 80° 54.0' W ( -80.90000)
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.