Bench mark positions only appear on the map if their coordinates in the CO-OPS database are at the precision of degrees/minutes/seconds/and tenths of seconds. If the coordinates are less precise, the mark will not appear.

Printable version

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
Datums Page                                                        Page  1 of  9

                                                                                
Station ID: 9755371                         PUBLICATION DATE:  10/24/2011
Name:       SAN JUAN, LA PUNTILLA, SAN JUAN BAY               
            PR
NOAA Chart: 25670                           Latitude:   18° 27.5' N (  18.45894)
USGS Quad:  SAN JUAN                        Longitude:  66°  7.0' W ( -66.11642)


To reach the tidal bench marks from the Cruise Ship Terminal in Old San Juan,
proceed to the US Custom Service building, turn left and proceed 0.5 km (0.3 mi)
to the US Coast Guard Base entrance. The bench marks are on the U.S. Coast Guard
compound. The tide gage and staff are on the southern tip of the U.S. Coast
Guard compound.


                         T I D A L   B E N C H   M A R K S


                 PRIMARY BENCH MARK STAMPING:  5371 A 1977
                         DESIGNATION:          975 5371 A TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         1386
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  TV1513
SETTING CLASSIFICATION:  Concrete sea wall                     OPUS PID:        
LATITUDE:   18° 27.5' N (  18.45894)          LONGITUDE:  66°  7.0' W ( -66.11642)


The primary bench mark is a disk set in the top of the concrete sea wall at the
SW corner of the U.S. Coast Guard Compound, 16.58 m (54.4 ft) SE of the concrete
steps leading to the water, 5.30 m (17.4 ft) west of the SW corner of the NOS
Tide House, 0.94 m (3.1 ft) north of the south face of the sea wall, and 0.24 m
(0.8 ft) above the ground.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  2 of  9

                                                                                
Station ID: 9755371                         PUBLICATION DATE:  10/24/2011
Name:       SAN JUAN, LA PUNTILLA, SAN JUAN BAY               
            PR
NOAA Chart: 25670                           Latitude:   18° 27.5' N (  18.45894)
USGS Quad:  SAN JUAN                        Longitude:  66°  7.0' W ( -66.11642)


                         T I D A L   B E N C H   M A R K S


                         BENCH MARK STAMPING:  5371 B 1977
                         DESIGNATION:          975 5371  B TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         1390
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  AA7649
SETTING CLASSIFICATION:  Concrete slab                         OPUS PID:        
LATITUDE:   18° 27.7' N (  18.46175)          LONGITUDE:  66°  7.0' W ( -66.11611)


The bench mark is a disk set in a concrete slab at the SE side of the U.S. Coast
Guard Compound, 22.25 m (73.0 ft) NW of the concrete sea wall of Berth 3, 8.84 m
(29.0 ft) east of the SE corner of a small boat repair shop, and 0.79 m (2.6 ft)
south of the SW corner of a transformer shelter.



                         BENCH MARK STAMPING:  5371 J 1977
                         DESIGNATION:          975 5371 J TIDAL

MONUMENTATION:           Tidal Station disk                    VM#:         1397
AGENCY:                  National Ocean Survey (NOS)           IDB PID#:  AA7652
SETTING CLASSIFICATION:  Concrete step                         OPUS PID:        
LATITUDE:   18° 27.7' N (  18.46122)          LONGITUDE:  66°  7.0' W ( -66.11667)


The bench mark is a disk set in the lower concrete step at the east entrance to
Building No. 36 (Health Services), 26.91 m (88.3 ft) south of the west entrance
gate, 14.75 m (48.4 ft) SSE of the entrance to the Engineering Department
Building, and 9.75 m (32.0 ft) west of the centerline of the road and flush with
the ground.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  3 of  9

                                                                                
Station ID: 9755371                         PUBLICATION DATE:  10/24/2011
Name:       SAN JUAN, LA PUNTILLA, SAN JUAN BAY               
            PR
NOAA Chart: 25670                           Latitude:   18° 27.5' N (  18.45894)
USGS Quad:  SAN JUAN                        Longitude:  66°  7.0' W ( -66.11642)


                         T I D A L   B E N C H   M A R K S


                         BENCH MARK STAMPING:  SJH-44 COE 1991
                         DESIGNATION:          975 5371 SJH-44

MONUMENTATION:           Survey disk                           VM#:        13768
AGENCY:                  US Army Corps of Engineers (USE)      IDB PID#:  DE5461
SETTING CLASSIFICATION:  Concrete bulkhead                     OPUS PID:        
LATITUDE:   18° 27.5' N (  18.45894)          LONGITUDE:  66°  7.0' W ( -66.11642)


The bench mark is a disk set in a concrete bulkhead at the NW corner of the NOS
tide house, 5.00 m (16.4 ft) south of the SW corner of a chainlink fence, 3.05 m
(10.0 ft) SE of bench mark 5371 A 1977, 1.10 m (3.6 ft) ENE of the south face of
the bulkhead, 1.10 m (3.6 ft) NW of the NW corner of the tide house, and at
ground level.



                         BENCH MARK STAMPING:  5371 L 1998
                         DESIGNATION:          975 5371 L

MONUMENTATION:           Tidal Station disk                    VM#:        13951
AGENCY:                  National Ocean Service (NOS)          IDB PID#:  DE5462
SETTING CLASSIFICATION:  Concrete stonewall                    OPUS PID:        
LATITUDE:   18° 27.6' N (  18.45986)          LONGITUDE:  66°  7.0' W ( -66.11664)


The bench mark is a disk set in a concrete stone wall on the west side of the
U.S. Coast Guard base near the Engineering building, 28.50 M (93.50 FT) SE of a
flag pole on the south side of a two story white building with wrap around the
balcony, 22.90 M (75.13 FT) north of a red fire hydrant and 6.00 M (19.68 FT)
NNW of the NW corner of the engineering building, and 0.70 M (2.30 FT) above the
parking lot.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  4 of  9

                                                                                
Station ID: 9755371                         PUBLICATION DATE:  10/24/2011
Name:       SAN JUAN, LA PUNTILLA, SAN JUAN BAY               
            PR
NOAA Chart: 25670                           Latitude:   18° 27.5' N (  18.45894)
USGS Quad:  SAN JUAN                        Longitude:  66°  7.0' W ( -66.11642)


                         T I D A L   B E N C H   M A R K S


                         BENCH MARK STAMPING:  5371 M 2000
                         DESIGNATION:          975 5371 M

MONUMENTATION:           Tidal Station disk                    VM#:        16270
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Concrete bulkhead                     OPUS PID#: DO1557
LATITUDE:   18° 27.6' N (  18.45917)          LONGITUDE:  66°  7.0' W ( -66.11606)


The bench mark is a disk set in the concrete bulkhead on the south side of the
base near the NOAA tide Station, 17.80 m (58.4 ft) SSE of the south side of the
tank storage shelter, 15.00 m (49.2 ft) west of the 4th bollard from the SW
corner of the dock, 4.57 m (15.00 ft) NE of the 3rd bollard from the SW end of
the dock, 0.80 m (2.6 ft) NW of the south side of the bulkhead face, and 0.26 m
(0.9 ft) above the concrete deck.



                         BENCH MARK STAMPING:  5371 N 2005
                         DESIGNATION:          975 5371 N

MONUMENTATION:           Tidal Station disk                    VM#:        17809
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Concrete bulkhead                     OPUS PID:        
LATITUDE:   18° 27.6' N (  18.46006)          LONGITUDE:  66°  6.9' W ( -66.11558)


The bench mark is a disk set in a concrete bulkhead cap located on the east side
of the coast guard property, 55.82 m (183.1 ft) ESE from the SE corner of the
mat building, 55.0 m (180.4 ft) west of the end of Finger Pier, 32.45 m (106.5
ft) north of the centerline of the most southern Finger Pier, and 2.85 m (9.4
ft) south of the centerline of the second Finger Pier.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  5 of  9

                                                                                
Station ID: 9755371                         PUBLICATION DATE:  10/24/2011
Name:       SAN JUAN, LA PUNTILLA, SAN JUAN BAY               
            PR
NOAA Chart: 25670                           Latitude:   18° 27.5' N (  18.45894)
USGS Quad:  SAN JUAN                        Longitude:  66°  7.0' W ( -66.11642)


                         T I D A L   B E N C H   M A R K S


                         BENCH MARK STAMPING:  5371 P 2005
                         DESIGNATION:          975 5371 P

MONUMENTATION:           Tidal Station disk                    VM#:        17810
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Concrete pad                          OPUS PID:        
LATITUDE:   18° 27.6' N (  18.46075)          LONGITUDE:  66°  7.0' W ( -66.11589)


The bench mark is a disk set in the SW corner of the concrete pad for a
generator and storage tanks for Bildge Oil located on the NE corner of the US
Coast Guard station property, 41.40 m (135.8 ft) WSW from the bulkhead face on
the east side of the Coast Guard base, 16.36 m (53.7 ft) ESE from the NE corner
of the Response building, 14.22 m (46.6 ft) ENE from the east face of the
Response building,  11.90 m (39.0 ft) SSE of the chain link fence running along
the north side of the property, and 0.32 m (1.0 ft) above the ground.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  6 of  9

                                                                                
Station ID: 9755371                         PUBLICATION DATE:  10/24/2011
Name:       SAN JUAN, LA PUNTILLA, SAN JUAN BAY               
            PR
NOAA Chart: 25670                           Latitude:   18° 27.5' N (  18.45894)
USGS Quad:  SAN JUAN                        Longitude:  66°  7.0' W ( -66.11642)


                         T I D A L   B E N C H   M A R K S


                         BENCH MARK STAMPING:  15 1992
                         DESIGNATION:          USCG 15

MONUMENTATION:           Tidal Station disk                    VM#:        18069
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Road                                  OPUS PID:        
LATITUDE:   18° 27.6' N (  18.46042)          LONGITUDE:  66°  7.0' W ( -66.11672)


The bench mark is a disk set with the road surface located in the entrance road
leading into the base and near the SW corner of the Navy Exchange Building,
18.56 m (68.9 ft) NW of the NW end of a concrete and stone wall, 6.11 m (20.0
ft) WSW of a concrete lamp post, and 2.90 m (9.5 ft) east of the SW corner of
the exchange building.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  7 of  9

                                                                                
Station ID: 9755371                         PUBLICATION DATE:  10/24/2011
Name:       SAN JUAN, LA PUNTILLA, SAN JUAN BAY               
            PR
NOAA Chart: 25670                           Latitude:   18° 27.5' N (  18.45894)
USGS Quad:  SAN JUAN                        Longitude:  66°  7.0' W ( -66.11642)


                         T I D A L   B E N C H   M A R K S


                         BENCH MARK STAMPING:  USCG 4 1992
                         DESIGNATION:          USCG 4

MONUMENTATION:           Survey disk                           VM#:        18286
AGENCY:                  US Army Corps of Engineers (USE)      IDB PID#:        
SETTING CLASSIFICATION:  Bulkhead                              OPUS PID:        
LATITUDE:   18° 27.6' N (  18.45919)          LONGITUDE:  66°  7.0' W ( -66.11669)


The bench mark is a disk set in the top of a concrete retaining wall by the
water's edge at the SW corner of the US Coast Guard compound, ESE of concrete
boat ramp, 18.92 m (62.1 ft) north of the bottom southern step of concrete boat
landing steps, 9.0 m (29.5 ft) west of the west face of fire hydrant east of a
concrete sea wall, 2.75 m (9.0 ft) WSW of the west face of a 40 foot (12.2 m)
concrete camra pole, 0.11 m (0.36 ft) east of the west face of a concrete
retaining sea wall that is running north-south and near the northern end of sea
wall, 0.18 m (0.59 ft) above ground.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  8 of  9

                                                                                
Station ID: 9755371                         PUBLICATION DATE:  10/24/2011
Name:       SAN JUAN, LA PUNTILLA, SAN JUAN BAY               
            PR
NOAA Chart: 25670                           Latitude:   18° 27.5' N (  18.45894)
USGS Quad:  SAN JUAN                        Longitude:  66°  7.0' W ( -66.11642)


                            T I D A L   D A T U M S 


Tidal datums at SAN JUAN, LA PUNTILLA, SAN JUAN BAY based on:

     LENGTH OF SERIES:      19 YEARS
     TIME PERIOD:           January 1983 - December 2001
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:   


Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:

     HIGHEST OBSERVED WATER LEVEL (09/18/1989)         =  1.324
     MEAN HIGHER HIGH WATER                     MHHW   =  0.480
     MEAN HIGH WATER                            MHW    =  0.400
     MEAN SEA LEVEL                             MSL    =  0.234
     Puerto Rico Vertical Datum of 2002         PRVD02 =  0.234
     MEAN TIDE LEVEL                            MTL    =  0.232
     MEAN LOW WATER                             MLW    =  0.063
     MEAN LOWER LOW WATER                       MLLW   =  0.000
     LOWEST  OBSERVED WATER LEVEL (12/20/1968)         = -0.331



Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     5371 A 1977                                 1.568    1.168
     5371 B 1977                                 1.656    1.256
     5371 J 1977                                 1.749    1.349
     SJH-44 COE 1991                             1.533    1.133
     5371 L 1998                                 2.536    2.136
     5371 M 2000                                 1.704    1.304
     5371 N 2005                                 1.843    1.443
     5371 P 2005                                 2.110    1.710
     15 1992                                     1.487    1.087
     USCG 4 1992                                 1.595    1.195

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  9 of  9

                                                                                
Station ID: 9755371                         PUBLICATION DATE:  10/24/2011
Name:       SAN JUAN, LA PUNTILLA, SAN JUAN BAY               
            PR
NOAA Chart: 25670                           Latitude:   18° 27.5' N (  18.45894)
USGS Quad:  SAN JUAN                        Longitude:  66°  7.0' W ( -66.11642)


                             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.