U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 7
Station ID: 8722329 PUBLICATION DATE: 12/18/2023
Name: JENSEN BEACH CAUSEWAY PARK
FL
NOAA Chart: 11474 Latitude: 27° 15.1' N ( 27.25170)
USGS Quad: EDEN Longitude: 80° 13.1' W ( -80.21830)
THE GAUGE IS LOCATED ABOUT 6.9 MI (11.1 KM) SOUTH-SOUTHEAST OF ANKONA, 6.4 MI
(10.3 KM) NORTH-NORTHEAST OF PALM CITY AND 2.1 MI (3.4 KM) SOUTHEAST OF EDEN IN
THE JENSEN BEACH CAUSEWAY PARK, IN SECTION 15, TOWNSHIP 37 SOUTH, RANGE 41 EAST.
TO REACH THE GAUGE FROM THE ROUND-ABOUT AT THE INTERSECTION OF STATE ROAD 707
(NE INDIAN RIVER DRIVE AND STATE ROAD 732 (NE CAUSEWAY BOULEVARD) IN JENSEN
BEACH, GO EAST ON STATE ROAD 732 (NE CAUSEWAY BOULEVARD) FOR 0.1 MI (0.2 KM) TO
THE ENTRANCE OF THE JENSEN BEACH CAUSEWAY PARK ON THE RIGHT. TURN RIGHT INTO
THE PARK THEN CURVE LEFT AND GO EAST FOR 0.10 MI (0.16 KM) PARALLELING STATE
ROAD 732 (NE CAUSEWAY BOULEVARD) TO THE WEST END OF A WALL BENEATH THE BRIDGE
ABUTMENT AT THE SOUTHWEST CORNER OF THE BRIDGE SPANNING THE INDIAN RIVER
INTRACOASTAL WATERWAY AND THE GAUGE ON THE RIGHT. BENCH MARKS ARE LOCATED IN
THE VICINITY TO THE NORTHEAST AND NORTHWEST ALONG THE CAUSEWAY. THE GAUGE IS
LOCATED ON THE WEST SIDE OF A WOODEN PIER THAT IS AND BEHIND JENSEN BEACH
MOORING FACILITY BUILDING. THERE IS A LOCKED GATE THAT WILL REQUIRE A CODE FROM
THE HARBOR MASTER TO ACCESS.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: 2329 H 2006
DESIGNATION: 872 2329 H
MONUMENTATION: Flange-encased Rod VM#: 19441
AGENCY: NGS IDB PID#:
SETTING CLASSIFICATION: Stainless steel rod OPUS PID#: DM3742
LATITUDE: 27° 15.1' N ( 27.25183) LONGITUDE: 80° 13.4' W ( -80.22367)
The bench mark is a flange-encased rod located 31.1 m (102.0 ft) east of the
west end of the south guardrail of the bridge, 26.1 m (85.5 ft) NW of the NE
corner of a 11.6 m (38.0 ft) x 7.9 m (26.0 ft) concrete slab of the easternmost
of four picnic pavilions, 4.4 m (14.5 ft) north of the centerline of the asphalt
access road and 0.4 m (1.2 ft) south of a carsonite witness post. The datum
point is the top of a stainless steel rod driven 8.8 m (29.0 ft) to refusal
encased in a NGS logo cap.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 7
Station ID: 8722329 PUBLICATION DATE: 12/18/2023
Name: JENSEN BEACH CAUSEWAY PARK
FL
NOAA Chart: 11474 Latitude: 27° 15.1' N ( 27.25170)
USGS Quad: EDEN Longitude: 80° 13.1' W ( -80.21830)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: R 517 2002
DESIGNATION: R 517
MONUMENTATION: Flange-encased Rod VM#: 19437
AGENCY: GCYI IDB PID#:
SETTING CLASSIFICATION: Stainless steel rod OPUS PID:
LATITUDE: 27° 13.5' N ( 27.22528) LONGITUDE: 80° 12.8' W ( -80.21361)
The primary bench mark is a flange-encased rod located 16.15 m (53.0 ft) north
of the centerline of the entrance road into Indian Riverside Park, 9.14 m (30.0
ft) east of the centerline of Indian River Drive and 4.82 m (15.8 ft) west of
the new corner of the sign base, and between the sidewalk and the east edge of
pavement of Indian River Drive. The datum point is the top of a stainless steel
rod driven to refusal at a depth of 24.4 m (80.1 ft), and encased in a 5-inch
NGS logo cap. A magnet was placed inside the access cover.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 7
Station ID: 8722329 PUBLICATION DATE: 12/18/2023
Name: JENSEN BEACH CAUSEWAY PARK
FL
NOAA Chart: 11474 Latitude: 27° 15.1' N ( 27.25170)
USGS Quad: EDEN Longitude: 80° 13.1' W ( -80.21830)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: Q 517 2002
DESIGNATION: Q 517
MONUMENTATION: Survey disk VM#: 19438
AGENCY: GCYI IDB PID#:
SETTING CLASSIFICATION: Concrete monument OPUS PID:
LATITUDE: 27° 14.4' N ( 27.24000) LONGITUDE: 80° 13.3' W ( -80.22222)
The bench mark is a disk set in the top of a concrete monument, located 10 m
(33.0 ft) west of the centerline of Indian River Drive, 11.3 m (37.2 ft) SE of a
flag pole, 25.6 m (84.0 ft) south of the centerline of the entrance road into
the Environmental Studies Center, and 24.7 m (81.0 ft) north of the centerline
of the exit road from the Environmental Studies Center. A magnet was buried at
the north side of the mark.
BENCH MARK STAMPING: 2329 J 2006
DESIGNATION: 872 2329 J
MONUMENTATION: Survey disk VM#: 19439
AGENCY: FLDEP IDB PID#:
SETTING CLASSIFICATION: Top of concrete monument imbedded in
ground OPUS PID#: DM3740
LATITUDE: 27° 15.1' N ( 27.25203) LONGITUDE: 80° 13.4' W ( -80.22403)
The bench mark is a survey disk set in the top of a concrete monument located
12.8 m (42.0 ft) NE of the west end of the guardrail at the NW corner of the
bridge, 3.6 m (11.9 ft) south of the asphalt access road and 0.9 m (3.0 ft)
north of a carsonite witness post in the timber guardrail.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 7
Station ID: 8722329 PUBLICATION DATE: 12/18/2023
Name: JENSEN BEACH CAUSEWAY PARK
FL
NOAA Chart: 11474 Latitude: 27° 15.1' N ( 27.25170)
USGS Quad: EDEN Longitude: 80° 13.1' W ( -80.21830)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 2329 G 2006
DESIGNATION: 872 2329 G
MONUMENTATION: Survey disk VM#: 19440
AGENCY: FLDEP IDB PID#:
SETTING CLASSIFICATION: Top of concrete monument embedded in the
ground OPUS PID#: DM3741
LATITUDE: 27° 15.1' N ( 27.25228) LONGITUDE: 80° 13.4' W ( -80.22303)
The bench mark is a survey disk set in the top of a concrete monument located
29.7 m (97.5 ft) WNW of the NE corner of the bridge wall beneath the NW abutment
of the bridge, 4.0 m (13.0 ft) south of the centerline of the asphalt access
road, 3.1 ft (0.9 m) north of a no parking sign at the base of a timber
guardrail and 0.9 m (3.0 ft) north of a carsonite witness post.
BENCH MARK STAMPING: 2329 F 2006
DESIGNATION: 872 2329 F
MONUMENTATION: Survey disk VM#: 19442
AGENCY: FLDEP IDB PID#:
SETTING CLASSIFICATION: Top of a concrete monument embedded in
the ground. OPUS PID:
LATITUDE: 27° 15.1' N ( 27.25217) LONGITUDE: 80° 13.4' W ( -80.22269)
The bench mark is a survey disk set in the top of a concrete monument located
50.6 m (166.0 ft) NE of the NE corner of the boat ramp on the south side of the
park, 4.6 m (15.0 ft) north of the centerline of the asphalt access road, 3.5 m
(11.6 ft) SW of the SE corner of the bridge wall, 1.7 m (5.6 ft) south of the
south face of the bridge wall and 1.5 m (5.0 ft) south of a carsonite witness
post.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 7
Station ID: 8722329 PUBLICATION DATE: 12/18/2023
Name: JENSEN BEACH CAUSEWAY PARK
FL
NOAA Chart: 11474 Latitude: 27° 15.1' N ( 27.25170)
USGS Quad: EDEN Longitude: 80° 13.1' W ( -80.21830)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 2329 E 2006
DESIGNATION: 872 2329 E
MONUMENTATION: Flange-encased Rod VM#: 19443
AGENCY: NGS IDB PID#:
SETTING CLASSIFICATION: Stainless steel rod OPUS PID#: DM3744
LATITUDE: 27° 15.2' N ( 27.25278) LONGITUDE: 80° 13.2' W ( -80.22028)
The bench mark is a flange-encased rod located 30.5 m (100.2 ft) SE of the
easterly face of the fourth bridge piling west of the channel of the Indian
River Intracoastal waterway, 24.9 m (81.7 ft) SSE of the centerline of the
fishing pier, 4.4 m (14.4 ft) NW of a point of intersection in the concrete
seawall cap, 0.5 m (1.6 ft) NW of a 4 x 4 wooden post with a plastic trash can
chained to it and 0.5 m (1.5 ft) NW of a carsonite witness post. The datum point
is the top of a stainless steel rod driven 24.1 m (79.0 ft) to refusal encased
in an NGS logo cap.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 6 of 7
Station ID: 8722329 PUBLICATION DATE: 12/18/2023
Name: JENSEN BEACH CAUSEWAY PARK
FL
NOAA Chart: 11474 Latitude: 27° 15.1' N ( 27.25170)
USGS Quad: EDEN Longitude: 80° 13.1' W ( -80.21830)
T I D A L D A T U M S
Tidal datums at JENSEN BEACH CAUSEWAY PARK based on:
LENGTH OF SERIES: 10 MONTHS
TIME PERIOD: November 2021 - August 2022
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 8723214 VIRGINIA KEY, BISCAYNE BAY
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
North American Vertical Datum NAVD88 = 0.566
MEAN HIGHER HIGH WATER MHHW = 0.486
MEAN HIGH WATER MHW = 0.439
MEAN TIDE LEVEL MTL = 0.239
MEAN SEA LEVEL MSL = 0.235
MEAN LOW WATER MLW = 0.040
MEAN LOWER LOW WATER MLLW = 0.000
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
2329 H 2006 2.091 1.652
R 517 2002 6.443 6.004
Q 517 2002 1.981 1.542
2329 J 2006 1.769 1.330
2329 G 2006 1.875 1.436
2329 F 2006 2.096 1.657
2329 E 2006 1.839 1.400
Foot Notes:
Bench mark Q 517 and R 517 are based on one differential leveling connection and
do not meet the quality control standards of the NOS. Therefore, caution should
be used when deriving elevations for these marks.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 7 of 7
Station ID: 8722329 PUBLICATION DATE: 12/18/2023
Name: JENSEN BEACH CAUSEWAY PARK
FL
NOAA Chart: 11474 Latitude: 27° 15.1' N ( 27.25170)
USGS Quad: EDEN Longitude: 80° 13.1' W ( -80.21830)
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.