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.