U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 8 Station ID: 8722971 PUBLICATION DATE: 05/23/2003 Name: SOUTH DANIA SOUND FL NOAA Chart: 11470 Latitude: 26° 3.3' N ( 26.05500) USGS Quad: PORT EVERGLADES Longitude: 80° 6.8' W ( -80.11330) To reach the tidal bench marks from the intersection of State Highway A1A and U.S. Highway 1 in Dania, proceed east on State Highway A1A for 3.2 km (2.0 mi) to a paved road leading to John V. Lloyd State Recreation Area, then north on the paved road for 0.24 km (0.15 mi) to the bridge over Whiskey Creek. The bench marks are in the vicinity of the bridge. The tide gage and staff were under the bridge, on the south seawall east of the bridge. T I D A L B E N C H M A R K S PRIMARY BENCH MARK STAMPING: NO 2 1973 DESIGNATION: 872 2971TIDAL 2 MONUMENTATION: Tidal Station disk VM#: 5718 AGENCY: National Ocean Survey (NOS) IDB PID#: AD5887 SETTING CLASSIFICATION: Concrete sea wall OPUS PID: LATITUDE: 26° 3.3' N ( 26.05500) LONGITUDE: 80° 6.9' W ( -80.11500) The primary bench mark is a disk set in the concrete seawall under the south end of the bridge over Whiskey Creek, 14 m (45 ft) east of the centerline of the bridge. BENCH MARK STAMPING: NO 4 1973 DESIGNATION: 872 2971 TIDAL 4 MONUMENTATION: Tidal Station disk VM#: 5719 AGENCY: National Ocean Survey (NOS) IDB PID#: AD5888 SETTING CLASSIFICATION: Concrete sea wall OPUS PID: LATITUDE: 26° 3.3' N ( 26.05500) LONGITUDE: 80° 6.9' W ( -80.11500) The bench mark is a disk set in the concrete seawall under the south end of the bridge over Whiskey Creek, 35 m (115 ft) west of bench mark NO 2 1973, and 21 m (70 ft) west of the centerline of the bridge.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 8 Station ID: 8722971 PUBLICATION DATE: 05/23/2003 Name: SOUTH DANIA SOUND FL NOAA Chart: 11470 Latitude: 26° 3.3' N ( 26.05500) USGS Quad: PORT EVERGLADES Longitude: 80° 6.8' W ( -80.11330) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 86 71 B19 DESIGNATION: 86 71 B19 MONUMENTATION: Bench Mark disk VM#: 5722 AGENCY: Florida Department of Transportation (FLDT) IDB PID#: AD8072 SETTING CLASSIFICATION: Concrete bridge walkway OPUS PID: LATITUDE: 26° 3.2' N ( 26.05333) LONGITUDE: 80° 6.9' W ( -80.11500) The bench mark is a disk set in the concrete walkway of the State Highway A1A Bridge over the Intracoastal Waterway, 0.24 km (0.15 mi) south of the bridge over Whiskey Creek, 34 m (110 ft) west of the NE corner of the bridge, and 4 m (13 ft) north of the centerline of the westbound lane of the highway.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 8 Station ID: 8722971 PUBLICATION DATE: 05/23/2003 Name: SOUTH DANIA SOUND FL NOAA Chart: 11470 Latitude: 26° 3.3' N ( 26.05500) USGS Quad: PORT EVERGLADES Longitude: 80° 6.8' W ( -80.11330) T I D A L B E N C H M A R K S BENCH MARK STAMPING: DANIA 3 1985 DESIGNATION: DANIA 3 MONUMENTATION: Triangulation Station disk VM#: 5723 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: AD7812 SETTING CLASSIFICATION: Concrete sidewalk OPUS PID: LATITUDE: 26° 3.2' N ( 26.05333) LONGITUDE: 80° 6.8' W ( -80.11333) The bench mark is a disk set in a concrete sidewalk, 42.92 m (140.8 ft) east of the SE corner of the State Highway A1A bridge over the Intracoastal Waterway, 6.25 m (20.5 ft) south of the centerline of the east bound lane of the highway, and 1.31 m (4.3 ft) south of a witness post.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 8 Station ID: 8722971 PUBLICATION DATE: 05/23/2003 Name: SOUTH DANIA SOUND FL NOAA Chart: 11470 Latitude: 26° 3.3' N ( 26.05500) USGS Quad: PORT EVERGLADES Longitude: 80° 6.8' W ( -80.11330) T I D A L B E N C H M A R K S BENCH MARK STAMPING: DANIA 3 1985 (AZI) DESIGNATION: DANIA 3 AZ MK 2 MONUMENTATION: Azimuth Mark disk VM#: 5724 AGENCY: National Geodetic Survey (NGS) IDB PID#: AD7812 SETTING CLASSIFICATION: Concrete bridge gutter OPUS PID: LATITUDE: 26° 3.3' N ( 26.05500) LONGITUDE: 80° 6.9' W ( -80.11500) The bench mark is a disk set in the corner gutter of the bridge over Whiskey Creek, 10.82 m (35.5 ft) WSW of bench mark 24.71, 4.51 m (14.8 ft) west of the centerline of the road, and 0.82 m (2.7 ft) east of the SW corner of the bridge.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 8 Station ID: 8722971 PUBLICATION DATE: 05/23/2003 Name: SOUTH DANIA SOUND FL NOAA Chart: 11470 Latitude: 26° 3.3' N ( 26.05500) USGS Quad: PORT EVERGLADES Longitude: 80° 6.8' W ( -80.11330) T I D A L B E N C H M A R K S BENCH MARK STAMPING: DANIA 3 NO 5 1985 DESIGNATION: DANIA 3 RM 5 MONUMENTATION: Reference Mark disk VM#: 5725 AGENCY: National Geodetic Survey (NGS) IDB PID#: AD7813 SETTING CLASSIFICATION: Concrete sidewalk OPUS PID: LATITUDE: 26° 3.2' N ( 26.05333) LONGITUDE: 80° 6.8' W ( -80.11333) The bench mark is a disk set in a concrete sidewalk, 67 m (220 ft) east of the SE corner of the State Highway A1A bridge over the Intracoastal Waterway, 24.51 m (80.4 ft) east of bench mark DANIA 3 1985 (AZI), 7.19 m (23.6 ft) south of the centerline of the eastbound lane of the highway, and 0.27 m (0.9 ft) north of the south edge of the sidewalk.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 6 of 8 Station ID: 8722971 PUBLICATION DATE: 05/23/2003 Name: SOUTH DANIA SOUND FL NOAA Chart: 11470 Latitude: 26° 3.3' N ( 26.05500) USGS Quad: PORT EVERGLADES Longitude: 80° 6.8' W ( -80.11330) T I D A L B E N C H M A R K S BENCH MARK STAMPING: DANIA 3 NO 6 1985 DESIGNATION: DANIA 3 RM 6 MONUMENTATION: Bench Mark disk VM#: 5726 AGENCY: Florida Department of Transportation (FLDT) IDB PID#: AD8073 SETTING CLASSIFICATION: Concrete bridge abutment OPUS PID: LATITUDE: 26° 3.2' N ( 26.05333) LONGITUDE: 80° 6.9' W ( -80.11500) The bench mark is a disk set in the east abutment at the NE corner of the State Highway A1A bridge over the Intracoastal Waterway, 34 m (110 ft) east of bench mark 86 71 B19, and 5 m (15 ft) north of the centerline of the westbound lane of the highway.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 7 of 8 Station ID: 8722971 PUBLICATION DATE: 05/23/2003 Name: SOUTH DANIA SOUND FL NOAA Chart: 11470 Latitude: 26° 3.3' N ( 26.05500) USGS Quad: PORT EVERGLADES Longitude: 80° 6.8' W ( -80.11330) T I D A L D A T U M S Tidal datums at SOUTH DANIA SOUND based on: LENGTH OF SERIES: 1 MONTH TIME PERIOD: August 1973 - August 1973 TIDAL EPOCH: 1983-2001 CONTROL TIDE STATION: 8723170 MIAMI BEACH (CITY PIER) Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS: MEAN HIGHER HIGH WATER MHHW = 0.750 MEAN HIGH WATER MHW = 0.723 North American Vertical Datum NAVD88 = 0.623 MEAN TIDE LEVEL MTL = 0.386 MEAN SEA LEVEL MSL = 0.381 MEAN LOW WATER MLW = 0.049 MEAN LOWER LOW WATER MLLW = 0.000 North American Vertical Datum (NAVD88) Bench Mark Elevation Information In METERS above: Stamping or Designation MLLW MHW NO 2 1973 1.298 0.575 NO 4 1973 1.301 0.578 86 71 B19 8.095 7.372 DANIA 3 1985 6.948 6.225 DANIA 3 1985 (AZI) 6.557 5.834 DANIA 3 NO 5 1985 7.496 6.773 DANIA 3 NO 6 1985 6.638 5.915 Foot Notes: Bench marks 86 71 B19, Dania 3 1985, Dania 3 (AZI), Dania 3 NO5 1985, and Dania 3 NO6 1985 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 8 of 8 Station ID: 8722971 PUBLICATION DATE: 05/23/2003 Name: SOUTH DANIA SOUND FL NOAA Chart: 11470 Latitude: 26° 3.3' N ( 26.05500) USGS Quad: PORT EVERGLADES Longitude: 80° 6.8' W ( -80.11330) 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.