U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 5
Station ID: 8727843 PUBLICATION DATE: 01/06/2004
Name: SPRING WARRIOR CREEK
FL
NOAA Chart: 11407 Latitude: 29° 55.2' N ( 29.92000)
USGS Quad: OKEENOKEE SLOUGH Longitude: 83° 40.3' W ( -83.67170)
To reach the tidal bench marks from the intersection of U.S. Highway 19/98 and
County Road C-361A in Perry, proceed south on County Road C-361A for 21.1 km
(13.1 mi) to a T-junction, then proceed SW for 2.4 km (1.5 mi) to the Spring
Warrior Creek Fish Camp. The bench marks are located near the fish camp and
County Road C-361A. The tide gage and staff were located on a free standing
structure in the creek.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: 7843 A 1978 CLB
DESIGNATION: 872 7843 A TIDAL
MONUMENTATION: Tidal Station disk VM#: 8249
AGENCY: Florida Department of Natural Resources
(FLDNR) IDB PID#: AR1485
SETTING CLASSIFICATION: Concrete monument OPUS PID:
LATITUDE: 29° 55.3' N ( 29.92170) LONGITUDE: 83° 40.3' W ( -83.67170)
The primary bench mark is a disk set in the top of a concrete monument, 63.40 m
(208.0 ft) SE of bench mark 7843 B 1978 CLB, 13.26 m (43.5 ft) NNE of the
shoreline, 8.53 m (28.0 ft) NNE of the centerline of the dirt road along Spring
Warrior Creek in front of the fish camp, 3.35 m (11.0 ft) SE of the centerline
of a dirt road to a residence, 0.82 m (2.7 ft) SW of a witness post, and 0.91 m
(3.0 ft) NW of the SW corner of the fish camp building.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 5
Station ID: 8727843 PUBLICATION DATE: 01/06/2004
Name: SPRING WARRIOR CREEK
FL
NOAA Chart: 11407 Latitude: 29° 55.2' N ( 29.92000)
USGS Quad: OKEENOKEE SLOUGH Longitude: 83° 40.3' W ( -83.67170)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 7843 B 1978 CLB
DESIGNATION: 872 7843 B TIDAL
MONUMENTATION: Tidal Station disk VM#: 8250
AGENCY: Florida Department of Natural Resources
(FLDNR) IDB PID#: AR1484
SETTING CLASSIFICATION: Concrete monument OPUS PID:
LATITUDE: 29° 55.3' N ( 29.92170) LONGITUDE: 83° 40.3' W ( -83.67170)
The bench mark is a disk set in the top of a concrete monument, 63 m (208 ft) NW
of bench mark 7843 A 1978 CLB, 15 m (50 ft) SE of a doubled-trunked oak tree, 12
m (40 ft) east of a utility pole # J7-31-19L with a security light and
transformer, 12 m (39 ft) east of the SE corner of a cottage, 12 m (38 ft) south
of the Y-intersection of the dirt roads near the Spring Warrior Creek Fish Camp,
3.05 m (10.0 ft) north of a cedar tree, 1 m (2 ft) north of a witness post, and
0.06 m (0.2 ft) below ground level.
BENCH MARK STAMPING: 7843 C 1978 CLB
DESIGNATION: 872 7843 C TIDAL
MONUMENTATION: Tidal Station disk VM#: 8251
AGENCY: Florida Department of Natural Resources
(FLDNR) IDB PID#: AR1483
SETTING CLASSIFICATION: Concrete monument OPUS PID:
LATITUDE: 29° 55.3' N ( 29.92170) LONGITUDE: 83° 40.3' W ( -83.67170)
The bench mark is a disk set in the top of a concrete monument, 91 m (297 ft) NE
of bench mark 7843 B 1978 CLB, 12 m (40 ft) SW of the intersection of County
Road C-361A and the southernmost road leading west, 2.29 m (7.5 ft) NW of a
cedar tree, 1.16 m (3.8 ft) SE of a powerline pole with a transformer, 1.16 m
(3.8 ft) NE of a witness post, and 0.06 m (0.2 ft) below ground level.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 5
Station ID: 8727843 PUBLICATION DATE: 01/06/2004
Name: SPRING WARRIOR CREEK
FL
NOAA Chart: 11407 Latitude: 29° 55.2' N ( 29.92000)
USGS Quad: OKEENOKEE SLOUGH Longitude: 83° 40.3' W ( -83.67170)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 7843 D 1978 CLB
DESIGNATION: 872 7843 D TIDAL
MONUMENTATION: Tidal Station disk VM#: 8252
AGENCY: Florida Department of Natural Resources
(FLDNR) IDB PID#: AR1482
SETTING CLASSIFICATION: Concrete monument OPUS PID:
LATITUDE: 29° 55.4' N ( 29.92330) LONGITUDE: 83° 40.2' W ( -83.67000)
The bench mark is a disk set in the top of a concrete monument, 130 m (425 ft)
NE of bench mark 7843 C 1978 CLB, 37 m (123 ft) SW of the intersection of County
Road C-361A and the third to last southern road leading west, 26.12 m (85.7 ft)
SW of a powerline pole, 16 m (54 ft) north of the end of the pavement of County
Road C-361A, 15.42 m (50.6 ft) NW of the centerline of the county road, 4.88 m
(16.0 ft) south of the east corner of a corrugated aluminum building, 1 m (4 ft)
SE of a witness post.
BENCH MARK STAMPING: 7843 E 1978 CLB
DESIGNATION: 872 7843 E TIDAL
MONUMENTATION: Bench Mark disk VM#: 8253
AGENCY: Florida Department of Natural Resources
(FLDNR) IDB PID#: AR1486
SETTING CLASSIFICATION: Rock outcropping OPUS PID:
LATITUDE: 29° 55.3' N ( 29.92170) LONGITUDE: 83° 40.3' W ( -83.67170)
The bench mark is a disk set in projecting bedrock, 33 m (108 ft) NNE of the
centerline of the dirt road along the creek, 31.85 m (104.5 ft) NW of bench mark
7843 A 1978 CLB, 14.14 m (46.4 ft) SW of the SW corner of a private residence,
12.68 m (41.6 ft) west of the centerline of a dirt road to the residence, 2.62 m
(8.6 ft) WNW of a metal witness post, and 0.12 m (0.4 ft) above ground level.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 5
Station ID: 8727843 PUBLICATION DATE: 01/06/2004
Name: SPRING WARRIOR CREEK
FL
NOAA Chart: 11407 Latitude: 29° 55.2' N ( 29.92000)
USGS Quad: OKEENOKEE SLOUGH Longitude: 83° 40.3' W ( -83.67170)
T I D A L D A T U M S
Tidal datums at SPRING WARRIOR CREEK based on:
LENGTH OF SERIES: 6 MONTHS
TIME PERIOD: June 1978 - November 1978
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 8727520 CEDAR KEY, GULF OF MEXICO
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
MEAN HIGHER HIGH WATER MHHW = 1.053
MEAN HIGH WATER MHW = 0.974
MEAN TIDE LEVEL MTL = 0.566
MEAN SEA LEVEL MSL = 0.546
North American Vertical Datum NAVD88 = 0.518
MEAN LOW WATER MLW = 0.158
MEAN LOWER LOW WATER MLLW = 0.000
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
7843 A 1978 CLB 1.563 0.589
7843 B 1978 CLB 1.692 0.718
7843 C 1978 CLB 1.799 0.825
7843 D 1978 CLB 1.758 0.784
7843 E 1978 CLB 1.491 0.517
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 5
Station ID: 8727843 PUBLICATION DATE: 01/06/2004
Name: SPRING WARRIOR CREEK
FL
NOAA Chart: 11407 Latitude: 29° 55.2' N ( 29.92000)
USGS Quad: OKEENOKEE SLOUGH Longitude: 83° 40.3' W ( -83.67170)
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.