U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 6
Station ID: 8729332 PUBLICATION DATE: 03/22/2005
Name: JOLLY BAY, CHOCTAWHATCHEE BAY
FL
NOAA Chart: 11388 Latitude: 30° 25.7' N ( 30.42830)
USGS Quad: FREEPORT Longitude: 86° 8.2' W ( -86.13670)
To reach the tidal bench marks from the east junction of State Highway 20 and
U.S. Highway 331 in Freeport, proceed SW along U.S. Highway 331 for 8.7 km (5.4
mi) to Jolly Bay Road, then turn left and proceed east on Jolly Bay Road for 1.6
km (1.0 mi) to a T-junction, then turn left and proceed south on Fluffy Landing
Road for 0.3 km (0.2 mi) to the residence of John L. Miller. The bench marks
are west of the Miller residence and along Fluffy Landing Road. The tide gage
and staff were located on a private dock in the rear of the residence.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: 2 1939
DESIGNATION: 872 9332 TIDAL 2
MONUMENTATION: Tidal Station disk VM#: 10082
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: BG2209
SETTING CLASSIFICATION: Concrete monument OPUS PID:
LATITUDE: 30° 25.8' N ( 30.43000) LONGITUDE: 86° 8.2' W ( -86.13670)
The primary bench mark is a disk set in the top of a concrete monument, 52.12 m
(171.0 ft) west of the extended centerline of Fluffy Landing Road, 40 m (131 ft)
north of the shoreline, 38.25 m (125.5 ft) south of the centerline of the
east-west dirt road, and 0.09 m (0.3 ft) above ground level.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 6
Station ID: 8729332 PUBLICATION DATE: 03/22/2005
Name: JOLLY BAY, CHOCTAWHATCHEE BAY
FL
NOAA Chart: 11388 Latitude: 30° 25.7' N ( 30.42830)
USGS Quad: FREEPORT Longitude: 86° 8.2' W ( -86.13670)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 3 1939
DESIGNATION: 872 9332 TIDAL 3
MONUMENTATION: Tidal Station disk VM#: 10083
AGENCY: US Coast & Geodetic Survey
(USC&GS) IDB PID#: BG2205
SETTING CLASSIFICATION: Concrete post OPUS PID:
LATITUDE: 30° 25.9' N ( 30.43170) LONGITUDE: 86° 8.1' W ( -86.13500)
The bench mark is a disk set in the top of a concrete post 0.21 m (0.7 ft), 50 m
(164 ft) north of the shoreline, 30 m (100 ft) west of the centerline of the
dirt road, 19.05 m (62.5 ft) south of the centerline of the driveway leading
west, and 3 m (10 ft) NE of the center of three 0.76 m (2.5 ft) diameter pine
trees. The bench mark is set in top of a concrete post projecting 0.09 m (0.3
ft) above ground level.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 6
Station ID: 8729332 PUBLICATION DATE: 03/22/2005
Name: JOLLY BAY, CHOCTAWHATCHEE BAY
FL
NOAA Chart: 11388 Latitude: 30° 25.7' N ( 30.42830)
USGS Quad: FREEPORT Longitude: 86° 8.2' W ( -86.13670)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: B 300 1967
DESIGNATION: B 300
MONUMENTATION: Bench Mark disk VM#: 10085
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: BG2204
SETTING CLASSIFICATION: Copper-clad steel rod OPUS PID:
LATITUDE: 30° 26.0' N ( 30.43330) LONGITUDE: 86° 8.1' W ( -86.13500)
The bench mark is a disk located 4.42 m (14.5 ft) SE of a powerline pole with 3
guy wires, 11 m (36 ft) SE of the centerline of a dirt road leading SW, 0.37 m
(1.2 ft) SW of a metal witness post and 0.24 m (0.8 ft) NE of the anchor at the
gorund end of the short one of two guy wires. The bench mark is set 0.09 m (0.3
ft) above ground level, crimped to the top of a copper coated rod driven 19.5 m
(64.0 ft) to refusal, encased in 4-inch PVC pipe and concrete kickblock.
BENCH MARK STAMPING: 9332 F 1985
DESIGNATION: 872 9332 F TIDAL
MONUMENTATION: Tidal Station disk VM#: 10086
AGENCY: National Ocean Service (NOS) IDB PID#: BG4613
SETTING CLASSIFICATION: Concrete monumet OPUS PID:
LATITUDE: 30° 25.8' N ( 30.43000) LONGITUDE: 86° 8.2' W ( -86.13670)
The bench mark is a disk set in the top of a concrete monument, 5.39 m (17.7 ft)
south of the centerline of the east-west dirt road, 8.90 m (29.2 ft) west of the
extended centerline of Fluffy Landing Road, 17.07 m (56.0 ft) ESE of powerline
pole #C3-8-1-3 with a transformer, 0.43 m (1.4 ft) north of a witness post, and
at ground level.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 6
Station ID: 8729332 PUBLICATION DATE: 03/22/2005
Name: JOLLY BAY, CHOCTAWHATCHEE BAY
FL
NOAA Chart: 11388 Latitude: 30° 25.7' N ( 30.42830)
USGS Quad: FREEPORT Longitude: 86° 8.2' W ( -86.13670)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 9332 G 1985
DESIGNATION: 872 9332 G TIDAL
MONUMENTATION: Tidal Station disk VM#: 10087
AGENCY: National Ocean Service (NOS) IDB PID#: BG4614
SETTING CLASSIFICATION: Concrete monumet OPUS PID:
LATITUDE: 30° 25.9' N ( 30.43170) LONGITUDE: 86° 8.2' W ( -86.13670)
The bench mark is a disk set in the top of a concrete monument, 0.2 km (0.1 mi)
north of bench mark 9332 F 1985, 19.20 m (63.0 ft) north of the centerline of
Sunset Drive, 5.33 m (17.5 ft) ESE of the centerline of Jolly Bay Road, 3.63 m
(11.9 ft) north of a powerline pole, 0.49 m (1.6 ft) west of a witness post, and
at ground level.
BENCH MARK STAMPING: 9332 H 1985
DESIGNATION: 872 9332 H TIDAL
MONUMENTATION: Tidal Station disk VM#: 10088
AGENCY: National Ocean Service (NOS) IDB PID#: BG4615
SETTING CLASSIFICATION: Concrete monument OPUS PID:
LATITUDE: 30° 25.9' N ( 30.43170) LONGITUDE: 86° 8.1' W ( -86.13500)
The bench mark is a disk set in the top of a concrete monument, 97.54 m (320.0
ft) SW of bench mark B 300 1967, 7.10 m (23.3 ft) SE of the centerline of Jolly
Bay Road, 3.66 m (12.0 ft) east of a 0.37 m (1.2 ft) diameter blazed pine tree,
0.40 m (1.3 ft) NW of a witness post, and at ground level. NOTE: Mark not found
in 1994 by US Power Squadron.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 6
Station ID: 8729332 PUBLICATION DATE: 03/22/2005
Name: JOLLY BAY, CHOCTAWHATCHEE BAY
FL
NOAA Chart: 11388 Latitude: 30° 25.7' N ( 30.42830)
USGS Quad: FREEPORT Longitude: 86° 8.2' W ( -86.13670)
T I D A L D A T U M S
Tidal datums at JOLLY BAY, CHOCTAWHATCHEE BAY based on:
LENGTH OF SERIES: 2 MONTHS
TIME PERIOD: December 1992 - January 1993
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 8729840 PENSACOLA, PENSACOLA BAY
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
MEAN HIGHER HIGH WATER MHHW = 0.170
MEAN HIGH WATER MHW = 0.168
MEAN TIDE LEVEL MTL = 0.089
MEAN SEA LEVEL MSL = 0.086
MEAN LOW WATER MLW = 0.009
MEAN LOWER LOW WATER MLLW = 0.000
North American Vertical Datum NAVD88 = -0.051
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
2 1939 1.355 1.187
3 1939 1.492 1.324
B 300 1967 1.384 1.216
9332 F 1985 1.479 1.311
9332 G 1985 1.408 1.240
9332 H 1985 1.490 1.322
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 6 of 6
Station ID: 8729332 PUBLICATION DATE: 03/22/2005
Name: JOLLY BAY, CHOCTAWHATCHEE BAY
FL
NOAA Chart: 11388 Latitude: 30° 25.7' N ( 30.42830)
USGS Quad: FREEPORT Longitude: 86° 8.2' W ( -86.13670)
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.