U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 7
Station ID: 9759394 PUBLICATION DATE: 10/07/2020
Name: MAYAGUEZ, PUERTO RICO
PR
NOAA Chart: 25673 Latitude: 18° 13.1' N ( 18.21889)
USGS Quad: MAYAGUEZ Longitude: 67° 9.7' W ( -67.16250)
To reach the tidal bench marks from the intersection of Puerto Rico Highway 2
and Highway 2 R near the main entrance to the University of Puerto Rico campus
in Mayaguez, go northerly on Highway 2 for 1.29 km (0.8 m) to the intersection
with Highway 102, then go westerly for 0. 32 km (0.2 mi) on Highway 102 to the
shore of Mayaguez Bay, then go northerly for 0.16 km (0.1 mi) to the Port of
Mayaguez compound and the bench marks.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: 9394 A 2006
DESIGNATION: 975 9394 A
MONUMENTATION: Tidal Station disk VM#: 18599
AGENCY: University of Puerto Rico at Mayaguez
(UPRM) IDB PID#: DK7451
SETTING CLASSIFICATION: Concrete pier OPUS PID#: DK7451
LATITUDE: 18° 13.1' N ( 18.21783) LONGITUDE: 67° 9.6' W ( -67.15939)
The primary bench mark is a disk set in the concrete sea wall located in the
Port of Mayag ez compound, just northeasterly of Bullard No. 4, 6.3 m (20.7 ft)
east of a water hydrant,1.1 m (3.6 ft) NE of the SW face of the sea wall, and
0.4 m (1.3 ft) NW of the NW corner of the concrete pad for Bullard No. 4.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 7
Station ID: 9759394 PUBLICATION DATE: 10/07/2020
Name: MAYAGUEZ, PUERTO RICO
PR
NOAA Chart: 25673 Latitude: 18° 13.1' N ( 18.21889)
USGS Quad: MAYAGUEZ Longitude: 67° 9.7' W ( -67.16250)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 9394 B 2008
DESIGNATION: 975 9394 B
MONUMENTATION: Tidal Station disk VM#: 18600
AGENCY: University of Puerto Rico at Mayaguez
(UPRM) IDB PID#: DK7452
SETTING CLASSIFICATION: Concrete pier OPUS PID#: DK7452
LATITUDE: 18° 13.1' N ( 18.21806) LONGITUDE: 67° 9.6' W ( -67.16008)
The bench mark is a disk set in the concrete sea wall located in the Port of
Mayag ez compound, just northeasterly of Bullard No. 8, 8.1 m (59.1 ft) south of
the south corner of the SW wing of an administration building, 1.1 m (3.6 ft) NE
of the SW face of the sea wall, and 0.4 m (1.3 ft) NW of the NW corner of the
concrete pad for Bullard No. 8.
BENCH MARK STAMPING: 9394 C 2008
DESIGNATION: 975 9394 C
MONUMENTATION: Tidal Station disk VM#: 18601
AGENCY: University of Puerto Rico at Mayaguez
(UPRM) IDB PID#: DK7453
SETTING CLASSIFICATION: Concrete pier OPUS PID#: DK7453
LATITUDE: 18° 13.1' N ( 18.21825) LONGITUDE: 67° 9.6' W ( -67.16061)
The bench mark is a disk set in the concrete sea wall located in the Port of
Mayag ez compound, just northerly of Bullard No. 11, 8.8 m (28.9 ft) south of a
security light pole, 1.1 m (3.6 ft) NE of the SW face of the sea wall, and 0.5 m
(1.6 ft) NW of the NW corner of the concrete pad for Bullard No. 11.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 7
Station ID: 9759394 PUBLICATION DATE: 10/07/2020
Name: MAYAGUEZ, PUERTO RICO
PR
NOAA Chart: 25673 Latitude: 18° 13.1' N ( 18.21889)
USGS Quad: MAYAGUEZ Longitude: 67° 9.7' W ( -67.16250)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 9394 D 2008
DESIGNATION: 975 9394 D
MONUMENTATION: Tidal Station disk VM#: 18602
AGENCY: University of Puerto Rico at Mayaguez
(UPRM) IDB PID#: DK7427
SETTING CLASSIFICATION: Concrete pier OPUS PID:
LATITUDE: 18° 13.1' N ( 18.21844) LONGITUDE: 67° 9.7' W ( -67.16125)
The bench mark is a disk set in the concrete sea wall located in the Port of
Mayag ez compound, just northerly of Bullard No. 14, 7.4 m (24.3 ft) SW of the
center of an iron surface drainage grate, 1.0 m (3.28 ft) NE of the SW face of
the sea wall, and 0.4 m (1.3 ft) NW of the NW corner of the concrete pad for
Bullard No. 14.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 7
Station ID: 9759394 PUBLICATION DATE: 10/07/2020
Name: MAYAGUEZ, PUERTO RICO
PR
NOAA Chart: 25673 Latitude: 18° 13.1' N ( 18.21889)
USGS Quad: MAYAGUEZ Longitude: 67° 9.7' W ( -67.16250)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: MHPR 1 1971
DESIGNATION: MHPR 1 1971
MONUMENTATION: Tidal Station disk VM#: 19847
AGENCY: US Army Corp of Engineers IDB PID#: DK7450
SETTING CLASSIFICATION: Conrete pier OPUS PID#: DK7450
LATITUDE: 18° 13.1' N ( 18.21772) LONGITUDE: 67° 9.5' W ( -67.15897)
Mark is a standard Corps Of Engineers bronze disk grouted into concrete pier
flush with the surface, located 27.4 m (90 ft) westerly of port entrance gate,
0.8 m (2.6 ft) northeast of face of concrete bulkhead, 0.65 m (2.1 ft) north of
the second bollard, and .5 m (1.5 ft) north of concrete pedestal for boat lift
on top.
BENCH MARK STAMPING: 9394 G 2010
DESIGNATION: 975 9394 G
MONUMENTATION: Tidal Station disk VM#: 20343
AGENCY: Puerto Rico Seismic Network IDB PID:
SETTING CLASSIFICATION: concrete sidewalk OPUS PID:
LATITUDE: 18° 13.1' N ( 18.21875) LONGITUDE: 67° 9.6' W ( -67.15947)
The mark is located 35.60 m (116.8 ft) SE of the centerline of the Mayaguez Port
entrance gate #2, 8.70 m (28.5 ft) E of the centerline of the road leading to
the Mayaguez Port, and 3.57 m (11.7 ft) NE of the fire hydrant. The bench mark
is flush with the sidewalk.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 7
Station ID: 9759394 PUBLICATION DATE: 10/07/2020
Name: MAYAGUEZ, PUERTO RICO
PR
NOAA Chart: 25673 Latitude: 18° 13.1' N ( 18.21889)
USGS Quad: MAYAGUEZ Longitude: 67° 9.7' W ( -67.16250)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 9394 J 2017
DESIGNATION: 975 9394 J
MONUMENTATION: Tidal Station disk VM#: 22504
AGENCY: National Ocean Service (NOS) IDB PID:
SETTING CLASSIFICATION: Massive concrete bulkhead OPUS PID:
LATITUDE: 18° 13.1' N ( 18.21886) LONGITUDE: 67° 9.7' W ( -67.16247)
The mark is a brass disk set atop a massive concrete bulkhead at the NW corner
of the Port of Mayaguez Port Authority property 59.02 m (193.6 ft) SW of a fire
hydrant, 1.60 (5.2 ft) NW of Bollard Number 21, 1.17 m (3.8 ft) south of the SE
corner of a light pole base.
BENCH MARK STAMPING: 9394 K 2019
DESIGNATION: 975 9394 K
MONUMENTATION: Tidal Station disk VM#: 23047
AGENCY: National Ocean Service (NOS) IDB PID:
SETTING CLASSIFICATION: Concrete slab OPUS PID:
LATITUDE: 18° 13.1' N ( 18.21889) LONGITUDE: 67° 9.7' W ( -67.16133)
The bench mark is a brass disk set flush in the SW corner of the storage
building adjacent to the main terminal at the entrance to the third bay door,
located 81.9 m (268.7 ft) east of the fire hydrant on the west end of the
property, 70.0 (229.7 ft) north of the seawall, and 18.2 m (59.7 ft) west of the
SE corner of the storage building.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 6 of 7
Station ID: 9759394 PUBLICATION DATE: 10/07/2020
Name: MAYAGUEZ, PUERTO RICO
PR
NOAA Chart: 25673 Latitude: 18° 13.1' N ( 18.21889)
USGS Quad: MAYAGUEZ Longitude: 67° 9.7' W ( -67.16250)
T I D A L D A T U M S
Tidal datums at MAYAGUEZ, PUERTO RICO based on:
LENGTH OF SERIES: 2 YEARS
TIME PERIOD: May 2015 - April 2017
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 9755371 SAN JUAN, LA PUNTILLA, SAN JUAN BAY
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
HIGHEST OBSERVED WATER LEVEL (09/20/2017) = 0.753
MEAN HIGHER HIGH WATER MHHW = 0.416
MEAN HIGH WATER MHW = 0.352
MEAN TIDE LEVEL MTL = 0.194
MEAN SEA LEVEL MSL = 0.191
Puerto Rico Vertical Datum of 2002 PRVD02 = 0.149
MEAN LOW WATER MLW = 0.036
MEAN LOWER LOW WATER MLLW = 0.000
LOWEST OBSERVED WATER LEVEL (01/12/2017) = -0.077
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
9394 A 2006 1.640 1.288
9394 B 2008 1.656 1.304
9394 C 2008 1.652 1.300
9394 D 2008 1.660 1.308
MHPR 1 1971 1.624 1.272
9394 G 2010 2.042 1.690
9394 J 2017 1.640 1.288
9394 K 2019 1.413 1.061
Foot Notes:
Bench mark '9394 K 2019' is based on one differential leveling connection and
does not meet the quality control standards of the NOS. Therefore, caution
should be used when deriving elevations for this mark.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 7 of 7
Station ID: 9759394 PUBLICATION DATE: 10/07/2020
Name: MAYAGUEZ, PUERTO RICO
PR
NOAA Chart: 25673 Latitude: 18° 13.1' N ( 18.21889)
USGS Quad: MAYAGUEZ Longitude: 67° 9.7' W ( -67.16250)
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 any other fixed island datum.
This tide station location has a defined island datum (PRVD02). Island datums
are specific fixed geodetic datums whose elevation relationship 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 PRVD02 elevation is shown on the Elevations of Tidal Datums Table Referred
to MLLW only when two or more of the bench marks listed have PRVD02 elevations.
The PRVD02 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, PRVD02 bench mark elevations computed indirectly from the tidal
datums elevation table may differ slightly from PRVD02 elevations listed for
each bench mark in the NGS database.