U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 1 of 5
Station ID: 8726924 PUBLICATION DATE: 06/02/2003
Name: ANCLOTE RIVER
FLORIDA
NOAA Chart: 11412 Latitude: 28ø 10.3' N
USGS Quad: TARPON SPRINGS Longitude: 82ø 47.1' W
To reach the tidal bench marks from the city hall in Tarpon Springs, proceed 3.2
km (2.0 mi) north on U.S. Highway 19 (ALT) to Anclote Road, continue west along
Anclote Road 2.9 km (1.8 mi) to Oceola Street, then south on Osceola Street to
"Paul's Fish Camp." The bench marks are in the vicinity along the roads leading
to the pier by Pauls Fish Camp, and the gage site was across Riverside on the
pier at the extended foot of Hickory Road.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: NO 1 1973
DESIGNATION: 872 6924 TIDAL 1
MONUMENTATION: Tidal Station disk VM#: 7667
AGENCY: National Ocean Survey (NOS) PID#: AL6626
SETTING CLASSIFICATION: Concrete culvert headwall
The primay bench mark is a disk set in the top of the inside corner of a
concrete culvert headwall at the SE corner of the intersection of Anclote
Boulevard and Oceola Street, 7.62 m (25.0 ft) SE of the centerline of Oceola
Street, 7.01 m (23.0 ft) NE of the centerline of Anclote Boulevard, 3.96 m
(13.0 ft) SW of the NE end of the headwall, and 3.20 m (10.5 ft) south of
powerpole pole No. 2-14086, and 2.90 m (9.5 ft) NW of the SE end of the
headwall.
BENCH MARK STAMPING: LEISNER 1952
DESIGNATION: LEISNER
MONUMENTATION: Triangulation Station disk VM#: 7666
AGENCY: US Coast and Geodetic Survey (USC&GS) PID#: AL6628
SETTING CLASSIFICATION: Concrete monument
The bench mark is a disk set on top of a 0.18 m (0.6 ft) square concrete
monument, 25.91 m (85.0 ft) NW of the center of the intersection of Oceola
Street and Riverside, 5.49 m (18.0 ft) SW of the centerline of Riverside, and
2.44 m (8.0 ft) NE of the seawall.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 5
Station ID: 8726924 PUBLICATION DATE: 06/02/2003
Name: ANCLOTE RIVER
FLORIDA
NOAA Chart: 11412 Latitude: 28ø 10.3' N
USGS Quad: TARPON SPRINGS Longitude: 82ø 47.1' W
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 6924 B 1979 CLB
DESIGNATION: 872 6924 B TIDAL FLDNR
MONUMENTATION: Tidal Station disk VM#: 7668
AGENCY: Florida Department of Natural Resources (FLDNR)PID#: AL7357
SETTING CLASSIFICATION: Copper-clad steel rod
The bench mark is a disk located at the NE corner of the intersection of County
road 76 (Anclote Boulevard) and Calvary Road, 34.23 m (112.3 ft) ESE of the SE
corner of Calvary Baptist Church, 20.18 m (66.2 ft) north of the centerline of
Anclote Boulevard, 4.05 m (13.3 ft) east of the centerline of Calvary Road,
1.46 m (4.8 ft) east of a utility pole, and 0.91 m (3.0 ft) south of a witness
post. The bench mark is set 6 cm (0.2 ft) above the ground, crimped to a 5/8
inch diameter copper-clad steel rod driven 4.6 m (15 ft) and encased in a
protector pipe.
BENCH MARK STAMPING: 6924 C 1979 CLB
DESIGNATION: 872 6924 C TIDAL FLDNR
MONUMENTATION: Tidal Station disk VM#: 7669
AGENCY: Florida Department of Natural Resources (FLDNR)PID#: AL7358
SETTING CLASSIFICATION: Copper-clad steel rod
The bench mark is a disk located 95.10 m (312.0 ft) SW along Calvary Road from
the intersection of Anclote Boulevard and Calvary Road, 7.89 m (25.9 ft) NNE of
a corner fence post, 6.25 m (20.5 ft) WNW of the centerline of Calvary Road,
4.39 m (14.4 ft) ENE of an end fence post, 1.52 m (5.0 ft) SW of a witness
post, and 1.28 m (4.2 ft) SSW of a utility pole. The bench mark is crimped to
a 5/8-inch diameter copper-clad steel rod driven 4.6 m (15 ft) and encased in a
protector pipe.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 5
Station ID: 8726924 PUBLICATION DATE: 06/02/2003
Name: ANCLOTE RIVER
FLORIDA
NOAA Chart: 11412 Latitude: 28ø 10.3' N
USGS Quad: TARPON SPRINGS Longitude: 82ø 47.1' W
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: Y 141
DESIGNATION: Y 141
MONUMENTATION: Bench Mark disk VM#: 7670
AGENCY: Florida Geodetic Survey (FLGS) PID#: AL7359
SETTING CLASSIFICATION: Concrete and brick road
The bench mark is a disk set in the road at the center of Calvary Road and
County Road 47, 0.2 km (0.1 mi) SW along Calvary Road from the intersection of
Calvary Road and Anclote Boulevard, 8.53 m (28.0 ft) SSW of utility pole NO
12A-1491R, and 7.01 m (23.0 ft) east of a fence corner.
BENCH MARK STAMPING: FLORIDA SRD
DESIGNATION: FLA SRD
MONUMENTATION: Survey disk VM#: 12417
AGENCY: Florida Department of Transportation (FLDT)PID#: AL6627
SETTING CLASSIFICATION: Culvert
The bench mark is a disk set flush in the top of a 0.24 m (0.8 ft), 5 m (15 ft)
long culvert abutment located near the center of the inside curve on the east
side of Anclote Boulevard, 84 m (275 ft) north of the centerline of Hickory
Road, and 6 m (20 ft) west of power pole No. 60282, and 0.30 m (1.0 ft) below
the road.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 5
Station ID: 8726924 PUBLICATION DATE: 06/02/2003
Name: ANCLOTE RIVER
FLORIDA
NOAA Chart: 11412 Latitude: 28ø 10.3' N
USGS Quad: TARPON SPRINGS Longitude: 82ø 47.1' W
T I D A L D A T U M S
Tidal datums at ANCLOTE RIVER based on:
LENGTH OF SERIES: 11 MONTHS
TIME PERIOD: April 1975 - February 1976
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 8726724 CLEARWATER BEACH, GULF OF MEXICO
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
MEAN HIGHER HIGH WATER (MHHW) = 0.936
MEAN HIGH WATER (MHW) = 0.826
NORTH AMERICAN VERTICAL DATUM-1988 (NAVD) = 0.606
MEAN SEA LEVEL (MSL) = 0.506
MEAN TIDE LEVEL (MTL) = 0.497
MEAN LOW WATER (MLW) = 0.168
MEAN LOWER LOW WATER (MLLW) = 0.000
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
NO 1 1973 3.182 2.356
LEISNER 1952 1.771 0.945
6924 B 1979 CLB 2.448 1.622
6924 C 1979 CLB 2.539 1.713
Y 141 2.253 1.427
FLORIDA SRD 2.066 1.240
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 5
Station ID: 8726924 PUBLICATION DATE: 06/02/2003
Name: ANCLOTE RIVER
FLORIDA
NOAA Chart: 11412 Latitude: 28ø 10.3' N
USGS Quad: TARPON SPRINGS Longitude: 82ø 47.1' 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 (NAVD 88).
NGVD 29 is a fixed datum adopted as a national standard geodetic reference for
heights but is now considered superseded. NGVD 29 is sometimes referred to as
Sea Level Datum of 1929 or as Mean Sea Level on some early issues of Geological
Survey Topographic Quads. NGVD 29 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 NGVD 29 are available from the National
Geodetic Survey (NGS) data base via the World Wide Web at
National Geodetic Survey.
NAVD 88 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. NAVD 88 replaces NGVD 29 as the national
standard geodetic reference for heights. Bench mark elevations relative to
NAVD 88 are available from NGS through the World Wide Web at
National Geodetic Survey.
NGVD 29 and NAVD 88 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 NAVD 88 elevation is shown on the Elevations of Tidal Datums Table Referred
to MLLW only when two or more of the bench marks listed have NAVD 88 elevations.
The NAVD 88 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, NAVD 88 bench mark elevations computed indirectly from the tidal
datums elevation table may differ slightly from NAVD 88 elevations listed for
each bench mark in the NGS database.