U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 8 Station ID: 8720030 PUBLICATION DATE: 04/21/2003 Name: FERNANDINA BEACH, AMELIA RIVER FL NOAA Chart: 11502 Latitude: 30° 40.3' N ( 30.67170) USGS Quad: FERNANDINA BEACH Longitude: 81° 27.9' W ( -81.46500) To reach the tidal bench marks from City Park in Fernandina Beach, proceed NW on Atlantic Avenue to the Fernandina Beach Marina. The bench marks are in the area between Beach and Alachua Streets going north to south, and 10th Street to City Dock going east to west. The tide station is on the Florida Petroleum Corporation dock near the foot of Calhoun Street. T I D A L B E N C H M A R K S PRIMARY BENCH MARK STAMPING: 34 1923 DESIGNATION: 872 0030 TIDAL 34 MONUMENTATION: Tidal Station disk VM#: 636 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: BC0166 SETTING CLASSIFICATION: Building OPUS PID: LATITUDE: 30° 40.4' N ( 30.67269) LONGITUDE: 81° 27.8' W ( -81.46378) The primary bench mark is a disk set vertically in the east face of the Standard Marine Supply Corporation building (101 North 2nd Street) at the intersection of North 2nd and Alachua Streets, 9.91 m (32.5 ft) north of the centerline of Alachua Street, 9.20 m (30.2 ft) west of the centerline of North 2nd Street, 0.30 (1.0 ft) north of the SW corner of the building, and 1.19 m (3.9 ft) above street level.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 8 Station ID: 8720030 PUBLICATION DATE: 04/21/2003 Name: FERNANDINA BEACH, AMELIA RIVER FL NOAA Chart: 11502 Latitude: 30° 40.3' N ( 30.67170) USGS Quad: FERNANDINA BEACH Longitude: 81° 27.9' W ( -81.46500) T I D A L B E N C H M A R K S BENCH MARK STAMPING: DESIGNATION: 872 0030 TIDAL 22 ALIAS: NO STAMPING 1 MONUMENTATION: Stone Monument VM#: 639 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: BC0171 SETTING CLASSIFICATION: Granite monument OPUS PID: LATITUDE: 30° 40.1' N ( 30.66833) LONGITUDE: 81° 27.6' W ( -81.46056) The bench mark is the top of a granite monument with USCS cut into the top, at the NE corner of 6th and Beach Streets, 14.39 m (47.2 ft) east of the centerline of 6th Street, 2.90 m (9.5 ft) north of the north edge of a sidewalk, 2.19 m (7.2 ft) east of the SW corner of the porch at No. 130 6th Street, 0.30 m (1.0 ft) SE of the SW corner of the house, and 0.06 m (0.2 ft) below ground level. NOTE: The mark was originally known as Tidal 22.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 8 Station ID: 8720030 PUBLICATION DATE: 04/21/2003 Name: FERNANDINA BEACH, AMELIA RIVER FL NOAA Chart: 11502 Latitude: 30° 40.3' N ( 30.67170) USGS Quad: FERNANDINA BEACH Longitude: 81° 27.9' W ( -81.46500) T I D A L B E N C H M A R K S BENCH MARK STAMPING: E 3 1916 18.989 DESIGNATION: E 3 MONUMENTATION: Bench Mark disk VM#: 642 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: BC0167 SETTING CLASSIFICATION: Post Office OPUS PID: LATITUDE: 30° 40.3' N ( 30.67117) LONGITUDE: 81° 27.7' W ( -81.46194) The bench mark is a disk set vertically in the south face of the Post Office at 401 Centre Street, 15.61 m (51.2 ft) north of the centerline of Centre Street, 0.09 m (0.3 ft) east of the SW corner of the building, and1.49 m (4.9 ft) above street level. BENCH MARK STAMPING: 38 1923 DESIGNATION: 872 0030 TIDAL 38 MONUMENTATION: Tidal Station disk VM#: 644 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: BC0175 SETTING CLASSIFICATION: School house OPUS PID: LATITUDE: 30° 40.2' N ( 30.67044) LONGITUDE: 81° 27.5' W ( -81.45753) The bench mark is a disk set vertically in the north face of a school house (vacant) at 914 Atlantic Avenue, 15.79 m (51.8 ft) south of the avenue centerline, 0.40 m (1.3 ft) east of the NW corner of the building, and 2.01 m (6.6 ft) above the level of the avenue. NOTE--The stamping is barely legible.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 8 Station ID: 8720030 PUBLICATION DATE: 04/21/2003 Name: FERNANDINA BEACH, AMELIA RIVER FL NOAA Chart: 11502 Latitude: 30° 40.3' N ( 30.67170) USGS Quad: FERNANDINA BEACH Longitude: 81° 27.9' W ( -81.46500) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 37 RESET 1970 DESIGNATION: 872 0030 TIDAL 37 RESET MONUMENTATION: Tidal Station disk VM#: 645 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: BC0174 SETTING CLASSIFICATION: Concrete parapet OPUS PID: LATITUDE: 30° 40.3' N ( 30.67086) LONGITUDE: 81° 27.5' W ( -81.45844) The bench mark is a disk set in the east parapet at the south entrance to the Bell Tower for the St. Peters Episcopal Church at the intersection of 8th Street and Atlantic Avenue, 33.71 m (110.6 ft) north of the centerline of 8th Street, 15.70 m (51.5 ft) north of the centerline of Atlantic Avenue, 1.40 m (4.6 ft) east of the center of the entrance, and 1.19 m (3.9 ft) above the level of the avenue. BENCH MARK STAMPING: NO 1 1972 DESIGNATION: 872 0030 TIDAL 1 MONUMENTATION: Tidal Station disk VM#: 646 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: BC1542 SETTING CLASSIFICATION: Concrete sea wall OPUS PID: LATITUDE: 30° 40.3' N ( 30.67117) LONGITUDE: 81° 27.9' W ( -81.46544) The bench mark is a disk set in top of a concrete sea wall at No. 1 South Front Street, 42.21 m (138.5 ft) west of and level with the centerline of Front Street, 5.79 m (19.0 ft) SW of the SE corner of Brets Waterway Cafe at No. 1 South Front Street, 0.91 m (3.0 ft) south of the south face of a bulkhead, and 0.09 m (0.3 ft) east of the west edge of the the sea wall
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 8 Station ID: 8720030 PUBLICATION DATE: 04/21/2003 Name: FERNANDINA BEACH, AMELIA RIVER FL NOAA Chart: 11502 Latitude: 30° 40.3' N ( 30.67170) USGS Quad: FERNANDINA BEACH Longitude: 81° 27.9' W ( -81.46500) T I D A L B E N C H M A R K S BENCH MARK STAMPING: NO 2 1974 DESIGNATION: 872 0030 TIDAL 2 MONUMENTATION: Tidal Station disk VM#: 648 AGENCY: National Ocean Survey (NOS) IDB PID#: BC1543 SETTING CLASSIFICATION: Concrete retaining wall OPUS PID: LATITUDE: 30° 40.2' N ( 30.67042) LONGITUDE: 81° 27.9' W ( -81.46536) The bench mark is a disk set in a concrete retaining wall along the east bank of Amelia River at No. 3 South Front Street, 81.11 m (266.1 ft) south of Bench Mark NO 1 1972, 3.41 m (11.2 ft) north of the north edge of a boat ramp, 2.99 m (9.8 ft) NW of the SW corner of the Amelia Island Charter Boat Office at No. 3 South Front Street, and 1.01 m (3.3 ft) above the level of the street.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 6 of 8 Station ID: 8720030 PUBLICATION DATE: 04/21/2003 Name: FERNANDINA BEACH, AMELIA RIVER FL NOAA Chart: 11502 Latitude: 30° 40.3' N ( 30.67170) USGS Quad: FERNANDINA BEACH Longitude: 81° 27.9' W ( -81.46500) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 36 1923 DESIGNATION: 872 0030 TIDAL 36 ALIAS: NO STAMPING 2 MONUMENTATION: Tidal Station disk VM#: 649 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: BC0160 SETTING CLASSIFICATION: Building OPUS PID: LATITUDE: 30° 40.2' N ( 30.66944) LONGITUDE: 81° 27.8' W ( -81.46361) The bench mark is a disk set vertically in the north wall of City Hall at the SE corner of Ash and Second Streets, 11.70 m (38.4 ft) south of the centerline of Ash Street, 4.60 m (15.1 ft) east of the NW corner of the building, and 1.19 m (3.9 ft) above street level. NOTE: the stamping is illegible. BENCH MARK STAMPING: 0030 L 1987 DESIGNATION: 872 0030 L TIDAL MONUMENTATION: Tidal Station disk VM#: 1771 AGENCY: National Ocean Service (NOS) IDB PID#: BC2522 SETTING CLASSIFICATION: Stainless steel rod OPUS PID#: BC2522 LATITUDE: 30° 40.3' N ( 30.67131) LONGITUDE: 81° 27.9' W ( -81.46472) The bench mark is a disk located at the intersection of Front and Centre Streets, 17.80 m (58.4 ft) NW of the NW corner of the Chamber of Commerce building, 15.09 m (49.5 ft) east of the center of Front Street, 10.21 m (33.5 ft) south of the centerline of Centre Street, and 0.21 m (0.7 ft) north of a witness post. The bench mark is crimped to the top of a stainless steel rod driven 12.80 m (42.0 ft) to refusal, and encased in a 5-inch PVC pipe and concrete kickblock.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 7 of 8 Station ID: 8720030 PUBLICATION DATE: 04/21/2003 Name: FERNANDINA BEACH, AMELIA RIVER FL NOAA Chart: 11502 Latitude: 30° 40.3' N ( 30.67170) USGS Quad: FERNANDINA BEACH Longitude: 81° 27.9' W ( -81.46500) T I D A L D A T U M S Tidal datums at FERNANDINA BEACH, AMELIA RIVER based on: LENGTH OF SERIES: 17 Years TIME PERIOD: 1/1983-12/1994 ; 1/1997-12/2001 TIDAL EPOCH: 1983-2001 CONTROL TIDE STATION: Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS: HIGHEST OBSERVED WATER LEVEL (10/02/1898) = 4.115 MEAN HIGHER HIGH WATER MHHW = 1.999 MEAN HIGH WATER MHW = 1.892 North American Vertical Datum NAVD88 = 1.165 MEAN SEA LEVEL MSL = 1.004 MEAN TIDE LEVEL MTL = 0.975 MEAN LOW WATER MLW = 0.057 MEAN LOWER LOW WATER MLLW = 0.000 LOWEST OBSERVED WATER LEVEL (01/24/1940) = -1.250 North American Vertical Datum (NAVD88) Bench Mark Elevation Information In METERS above: Stamping or Designation MLLW MHW 34 1923 4.252 2.360 872 0030 TIDAL 22 6.791 4.899 E 3 1916 18.989 6.613 4.721 38 1923 9.330 7.438 37 RESET 1970 9.115 7.223 NO 1 1972 2.802 0.910 NO 2 1974 2.785 0.893 36 1923 4.932 3.040 0030 L 1987 2.950 1.058 Foot Notes:
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 8 of 8 Station ID: 8720030 PUBLICATION DATE: 04/21/2003 Name: FERNANDINA BEACH, AMELIA RIVER FL NOAA Chart: 11502 Latitude: 30° 40.3' N ( 30.67170) USGS Quad: FERNANDINA BEACH Longitude: 81° 27.9' W ( -81.46500) 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.