U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 6 Station ID: 8722383 PUBLICATION DATE: 03/24/2010 Name: PORT SALERNO FL NOAA Chart: 11474 Latitude: 27° 9.1' N ( 27.15170) USGS Quad: ST. LUCIE INLET Longitude: 80° 11.7' W ( -80.19500) To reach the tidal bench marks from the U.S. Post Office in Port Salerno, proceed 0.08 km (0.05 mi) north on State Highway A1A (SE Dixie Highway) to the intersection with Seaward Street, then 0.40 km (0.25 mi) east on Seaward Street, which becomes SE Park Drive, to the Pirate Cove Marina. The bench marks are located on the Pirate Cove Marina concrete sea wall. The tide gage and staff were located on the north end of an old E shaped wooden dock. T I D A L B E N C H M A R K S PRIMARY BENCH MARK STAMPING: NO 1 1972 DESIGNATION: 872 2383 TIDAL 1 MONUMENTATION: Tidal Station disk VM#: 5459 AGENCY: National Ocean Survey (NOS) IDB PID#: AF6957 SETTING CLASSIFICATION: Concrete sea wall OPUS PID: LATITUDE: 27° 9.0' N ( 27.15000) LONGITUDE: 80° 11.7' W ( -80.19500) The primary bench mark is a disk located 21.24 m (69.7 ft) east of the NE corner of a swimming pool pump house, 5.49 m (18.0 ft) east of the approximate centerline of the dirt road and the marina, 15.24 m (50.0 ft) east of the NE corner of the dockmasters building, and is at boat space 23.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 6 Station ID: 8722383 PUBLICATION DATE: 03/24/2010 Name: PORT SALERNO FL NOAA Chart: 11474 Latitude: 27° 9.1' N ( 27.15170) USGS Quad: ST. LUCIE INLET Longitude: 80° 11.7' W ( -80.19500) T I D A L B E N C H M A R K S BENCH MARK STAMPING: NO 4 1972 DESIGNATION: 872 2383 TIDAL 4 MONUMENTATION: Tidal Station disk VM#: 5462 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: AF6956 SETTING CLASSIFICATION: Concrete sea wall OPUS PID: LATITUDE: 27° 9.0' N ( 27.15000) LONGITUDE: 80° 11.7' W ( -80.19500) The bench mark is a disk located 26.21 m (86.0 ft) south of bench mark NO 1 1972, 22.77 m (74.7 ft) south of the south edge of a 4-foot wide walkway to the fueling pier, 5.18 m (17.0 ft) east of the approximate centerline of a dirt road, and 4.57 m (15.0 ft) south of an 8-foot wide aluminum walkway to a T-Dock. BENCH MARK STAMPING: NO 5 1972 DESIGNATION: 872 2383 TIDAL 5 MONUMENTATION: Tidal Station disk VM#: 5463 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: AF6955 SETTING CLASSIFICATION: Concrete sea wall OPUS PID: LATITUDE: 27° 9.0' N ( 27.15000) LONGITUDE: 80° 11.7' W ( -80.19500) The bench mark is a disk located 23.47 m (77.0 ft) south of bench mark NO 4 1972, 16.73 m (54.9 ft) NE of the SW end of the sea wall, and 5.18 m (17.0 ft) east of the approximate centerline of a dirt road.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 6 Station ID: 8722383 PUBLICATION DATE: 03/24/2010 Name: PORT SALERNO FL NOAA Chart: 11474 Latitude: 27° 9.1' N ( 27.15170) USGS Quad: ST. LUCIE INLET Longitude: 80° 11.7' W ( -80.19500) T I D A L B E N C H M A R K S BENCH MARK STAMPING: GCY D15 2001 DESIGNATION: GCY D15 MONUMENTATION: Flange-encased Rod VM#: 18914 AGENCY: Surveyors & Mappers Inc. (GCYI) IDB PID#: AJ5257 SETTING CLASSIFICATION: Stainless steel rod in sleeve OPUS PID#: AJ5257 LATITUDE: 27° 8.8' N ( 27.14667) LONGITUDE: 80° 12.9' W ( -80.21500) The bench mark is a flange encased rod located 19.51 m (64.0 ft) east of the east edge of the pavement of the northbound lanes of U.S. Highway 1, 7.32 m (24.0 ft) south of a mitered culvert end and 1.07 m (3.5 ft) west of a carsonite witness post. The datum point is set an unspecified depth below ground, being the top of a stainless steel rod driven an unspecified depth to refusal, in a sleeve extending to an unspecified depth and encased in a 5-inch logo cap. Note: There was one magnet placed inside of the PVC collar.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 6 Station ID: 8722383 PUBLICATION DATE: 03/24/2010 Name: PORT SALERNO FL NOAA Chart: 11474 Latitude: 27° 9.1' N ( 27.15170) USGS Quad: ST. LUCIE INLET Longitude: 80° 11.7' W ( -80.19500) T I D A L B E N C H M A R K S BENCH MARK STAMPING: V 232 1965 DESIGNATION: V 232 MONUMENTATION: Bench Mark disk VM#: 18915 AGENCY: US Coast and Geodetic Survey (USC & GS) IDB PID#: AF3106 SETTING CLASSIFICATION: Copper-clad Steel Rod OPUS PID#: AF3106 LATITUDE: 27° 8.8' N ( 27.14667) LONGITUDE: 80° 12.0' W ( -80.20000) The bench mark is a disk located 20.21 m (66.3 ft) NE of the centerline of SE Railway Avenue, 14.11 m (46.3 ft) SW of the near rail, 9.69 m (31.8 ft) NW of and level with the street centerline, 1.01 m (3.3 ft) NW of a utility pole stub, and 0.30 m (1.0 ft) NE of a witness post. The bench mark is set flush with the ground surface crimped to the top of a copper-clad steel rod, driven to an unspecified depth to refusal, and encased in a 4-inch metal pipe. BENCH MARK STAMPING: 2383 A 2005 DESIGNATION: 872 2383 A TIDAL MONUMENTATION: Tidal Station disk VM#: 18916 AGENCY: Florida Department of Environmental Protection IDB PID#: SETTING CLASSIFICATION: Concrete Box Drain OPUS PID: LATITUDE: 27° 9.0' N ( 27.15000) LONGITUDE: 80° 11.8' W ( -80.19667) The bench mark is a disk set flush in the top of a concrete box drain and 0.30 m (1.0 ft) below the level of SE Mulford Lane, 15.12 m (49.6 ft) NNW of the approximate centerline of the northernmost entrance drive of the Pirates Cove Marina, 10.55 m (34.6 ft) NE of the approximate centerline of SE Mulford Lane, 3.87 m (12.7 ft) NNW of the extended centerline of SE Westfield Street and 0.18 m (0.6 ft) NE of a carsonite witness post.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 6 Station ID: 8722383 PUBLICATION DATE: 03/24/2010 Name: PORT SALERNO FL NOAA Chart: 11474 Latitude: 27° 9.1' N ( 27.15170) USGS Quad: ST. LUCIE INLET Longitude: 80° 11.7' W ( -80.19500) T I D A L D A T U M S Tidal datums at PORT SALERNO based on: LENGTH OF SERIES: 2 MONTHS TIME PERIOD: August 1972 - September 1972 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: North American Vertical Datum NAVD88 = 0.481 MEAN HIGHER HIGH WATER MHHW = 0.337 MEAN HIGH WATER MHW = 0.304 MEAN SEA LEVEL MSL = 0.172 MEAN TIDE LEVEL MTL = 0.170 MEAN LOW WATER MLW = 0.036 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 1 1972 1.203 0.899 NO 4 1972 1.216 0.912 NO 5 1972 1.242 0.938 GCY D15 2001 5.625 5.321 V 232 1965 3.196 2.892 2383 A 2005 3.781 3.477 Foot Notes: Geodetic heights of the bench marks meet all NOAA/NOS/NGS quality control standards for Second Order, Class 1 leveling. It is advised that a confirmation set of levels be established for bench marks GCY D15 2001, V 232 1965, and 2383 A 2005 to verify height differences before using tidal bench mark elevation information.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 6 of 6 Station ID: 8722383 PUBLICATION DATE: 03/24/2010 Name: PORT SALERNO FL NOAA Chart: 11474 Latitude: 27° 9.1' N ( 27.15170) USGS Quad: ST. LUCIE INLET Longitude: 80° 11.7' W ( -80.19500) 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.