U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 7 PUBLICATION DATE: 06/27/2001 Station ID: 8720587 SUPERCEDED DATE: 04/21/2003 Name: ST. AUGUSTINE BEACH, ATLANTIC OCEAN FLORIDA NOAA Chart: 11486 Latitude: 29° 51.4' N USGS Quad: ST AUGUSTINE BEACH Longitude: 81° 15.8' W To reach the tidal bench marks from the intersection of State Highway A1A and Anastasia Boulevard in St. Augustine Beach, proceed south on State Highway A1A for 0.3 km (0.2 mile) to the St. Johns County Municipal Fishing Pier. The bench marks are located in the vicinity of the pier and along Highway A1A. The tide gauge is located near the seaward end of the pier. T I D A L B E N C H M A R K S PRIMARY BENCH MARK STAMPING: D 322 1970 DESIGNATION: D 322 MONUMENTATION: Bench Mark disk VM#: 5216 AGENCY: US Coast and Geodetic Survey (USC&GS) PID#: AQ0346 SETTING CLASSIFICATION: Concrete monument The primary bench mark is a disk set in a concrete monument north of the bait shop at the St. Johns County Municipal Fishing Pier, near the east end of a grass median in the parking lot, 21.00 m (68.9 ft) NW of the NW corner of the pier, 13.01 M (42.7 ft) east of a utility pole, 10.49 m (34.4 ft) north of the road center, 7.99 m (26.2 ft) west of the east end of the median, 1.58 m (5.2 ft) south of the north curb of the median, 1.49 m (4.9 ft) north of the south curb of the midian, 0.30 m (1.0 ft) above the level of the road, and at ground level. BENCH MARK STAMPING: 0587 E 1993 DESIGNATION: 872 0587 E MONUMENTATION: Tidal Station disk VM#: 85 AGENCY: National Ocean Service (NOS) PID: SETTING CLASSIFICATION: Stainless steel rod The bench mark is a disk located at the entrance to the St. Johns County Municipal Fishing Pier parking lot, 18.75 m (61.5 ft) east of the centerline of State Highway A1A, 9.80 m (32.1 ft) north of the centerline of the most northerly entrance to the pier parking lot, and 12.20 (40.0 ft) NW of the center of a drain in the parking lot. The bench mark is crimped to a stainless steel rod driven 8.5 m (28 ft) to refusal, and encased in a five-inch diameter PVC pipe and concrete kickblock.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 7 PUBLICATION DATE: 06/27/2001 Station ID: 8720587 SUPERCEDED DATE: 04/21/2003 Name: ST. AUGUSTINE BEACH, ATLANTIC OCEAN FLORIDA NOAA Chart: 11486 Latitude: 29° 51.4' N USGS Quad: ST AUGUSTINE BEACH Longitude: 81° 15.8' W T I D A L B E N C H M A R K S BENCH MARK STAMPING: H 322 1970 DESIGNATION: H 322 MONUMENTATION: Survey disk VM#: 5212 AGENCY: US Army Corps of Engineers (USE) PID#: AQ0345 SETTING CLASSIFICATION: Concrete monument The bench mark is a disk set in a concrete monument 0.24 km (0.15 mi) north along State Highway A1A from the St. Augustine Beach Fire Station, near the intersection of Highway A1A and Pope Road, 14.90 m (48.9 ft) west of the centerline of Highway A1A, 15.00 m (49.2ft) south of the centerline of Pope Road, 15.01 m (49.2 ft) west of the centerline of Highway A1A, 12.70 m (41.7 ft) NE of the corner of a deck on the house at A 301, 1.94 m (6.4 ft) south of a utility pole, 0.30 m (1.0 ft) below the level of the highway, and 0.09 m (0.3 ft) above ground level. NOTE: the number 1939 is precast in the disk. BENCH MARK STAMPING: C 322 1970 DESIGNATION: C 322 MONUMENTATION: Bench Mark disk VM#: 5215 AGENCY: US Coast and Geodetic Survey (USC&GS) PID#: AQ0347 SETTING CLASSIFICATION: Concrete monument The bench mark is a disk in St. Augustine Beach at No. 370 South A1A, 40.10 m (131.6 ft) east of and level with the highway centerline, 7.40 m (24.3 ft) NE of the NE corner of a fire station at No. 370 South A1A, 6.60 m (21.7 ft) NW of the NW corner of the Fire Station garage, 0.6 m (2.0 ft) south of a utility light pole, and at ground level.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 7 PUBLICATION DATE: 06/27/2001 Station ID: 8720587 SUPERCEDED DATE: 04/21/2003 Name: ST. AUGUSTINE BEACH, ATLANTIC OCEAN FLORIDA NOAA Chart: 11486 Latitude: 29° 51.4' N USGS Quad: ST AUGUSTINE BEACH Longitude: 81° 15.8' W T I D A L B E N C H M A R K S BENCH MARK STAMPING: R-142 RESET 1995 DESIGNATION: 872 0587 R-142 RESET MONUMENTATION: Survey disk VM#: 13349 AGENCY: US Army Corps of Engineers (USE) PID: SETTING CLASSIFICATION: Concrete monument The bench mark is a disk set in a concrete monument, near the foot of the St. Johns County Municipal Fishing Pier, on the south side of the pier, 29.41 m (96.5 ft) east of the east face of the pier house, 7.99 m (26.2 ft) west of the west side of a concrete seawall, 1.98 m (6.5 ft) south of the south side of the pier, and at ground level. BENCH MARK STAMPING: 0587 F 1997 DESIGNATION: 872 0587 F MONUMENTATION: Flange-encased Rod VM#: 13702 AGENCY: National Ocean Service (NOS) PID: SETTING CLASSIFICATION: Stainless steel rod in sleeve The bench mark is a flange-encased rod set near the St. Johns County Municipal Pier in the SE corner of the parking lot, 26.70 m (87.6 ft) SSW of the SW corner of the bathrooms for the pier, 26.70 m (87.6 ft) NW of the NW corner of the City Office Building, 26.20 m (86.0 ft) ESE of a cement power pole No. 1156, and 10.15 m (33.3 ft) NNE of a cement power pole No. 1254. The datum point is the top of a stainless steel rod driven 18.1 m (59 ft) to refusal, encased in a grease-filled sleeve and 5-inch NOS logo cap.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 7 PUBLICATION DATE: 06/27/2001 Station ID: 8720587 SUPERCEDED DATE: 04/21/2003 Name: ST. AUGUSTINE BEACH, ATLANTIC OCEAN FLORIDA NOAA Chart: 11486 Latitude: 29° 51.4' N USGS Quad: ST AUGUSTINE BEACH Longitude: 81° 15.8' W T I D A L B E N C H M A R K S BENCH MARK STAMPING: 0587 G 1997 DESIGNATION: 872 0587 G MONUMENTATION: Flange-encased Rod VM#: 13703 AGENCY: National Ocean Service (NOS) PID: SETTING CLASSIFICATION: Stainless steel rod in sleeve The bench mark is a flange-encased rod set near the intersection of Highway A1A and 15th Street in St. Augustine Beach, 32.45 m (106.5 ft) south of the sign for Better Homes Realty, 28.80 m (94.5 ft) west of a telephone pole with transformer on 15th Street, 12.30 m (40.6 ft) east of the centerline of Highway A1A, and 5.80 m (19.0 ft) north of the centerline of 15th Street. The datum point is the top of a stainless steel rod driven 15.5 m (51 ft) to refusal, encased in a grease-filled sleeve and 5-inch NOS logo cap. BENCH MARK STAMPING: R 141 R 19 1972 DESIGNATION: 872 0587 R 141 MONUMENTATION: Bench Mark disk VM#: 13952 AGENCY: Florida Dept. of Natural Resources (FDNR) PID: SETTING CLASSIFICATION: Stainless steel rod The bench mark is a disk near the intersection of Popes Street and Highway A1A at a curve in the road, 42.98 m (141.0 ft) north of the centerline of an access road next to the Howard Johnson Hotel, 27.65 m (90.7 ft) south of the center of a metal gate for access to the beach, 15.21 m (49.9 ft) east of the centerline of Highway A1A, 0.88 m (2.9 ft) east of a metal post, and just west of a metal witness post. The bench mark is about 0.3 m (1 ft) below ground level in a depression, set on top of a metal rod driven an unspecified depth.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 7 PUBLICATION DATE: 06/27/2001 Station ID: 8720587 SUPERCEDED DATE: 04/21/2003 Name: ST. AUGUSTINE BEACH, ATLANTIC OCEAN FLORIDA NOAA Chart: 11486 Latitude: 29° 51.4' N USGS Quad: ST AUGUSTINE BEACH Longitude: 81° 15.8' W T I D A L B E N C H M A R K S BENCH MARK STAMPING: L 405 1991 DESIGNATION: L 405 MONUMENTATION: Flange-encased Rod VM#: 13953 AGENCY: National Geodetic Survey (NGS) PID#: AQ2722 SETTING CLASSIFICATION: Stainless steel rod The bench mark is a flange-encased rod at the intersection of State Highway A1A and D Street in St. Augustine Beach, 13.6 m (44.6 ft) west of and level with the Highway A1A, 4.51 m (14.8 ft) south of the centerline of D Street, and 0.49 m (1.6 ft) east of utility light pole No. 345. The datum point is 15 cm (0.5 ft) below ground level, being the top of a stainless steel rod driven 21.7 m (71 ft), and encased in a 5-inch NGS logo cap.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 6 of 7 PUBLICATION DATE: 06/27/2001 Station ID: 8720587 SUPERCEDED DATE: 04/21/2003 Name: ST. AUGUSTINE BEACH, ATLANTIC OCEAN FLORIDA NOAA Chart: 11486 Latitude: 29° 51.4' N USGS Quad: ST AUGUSTINE BEACH Longitude: 81° 15.8' W T I D A L D A T U M S Tidal datums at ST. AUGUSTINE BEACH, ATLANTIC OCEAN based on: LENGTH OF SERIES: 84 MONTHS TIME PERIOD: June 1992 - September 1999 TIDAL EPOCH: 1960-1978 CONTROL TIDE STATION: 8720220 MAYPORT Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS: HIGHEST OBSERVED WATER LEVEL (09/24/1992) = 2.422 MEAN HIGHER HIGH WATER MHHW = 1.587 MEAN HIGH WATER MHW = 1.476 North American Vertical Datum NAVD88 = 1.028 MEAN TIDE LEVEL MTL = 0.764 MEAN SEA LEVEL MSL = 0.756 MEAN LOW WATER MLW = 0.053 MEAN LOWER LOW WATER MLLW = 0.000 LOWEST OBSERVED WATER LEVEL (03/03/1993) = -0.915 North American Vertical Datum (NAVD88) Bench Mark Elevation Information In METERS above: Stamping or Designation MLLW MHW D 322 1970 4.102 2.626 0587 E 1993 3.228 1.752 H 322 1970 2.790 1.314 C 322 1970 3.317 1.841 R-142 RESET 1995 4.350 2.874 0587 F 1997 4.090 2.614 0587 G 1997 2.844 1.368 R 141 R 19 1972 3.254 1.778 L 405 1991 3.393 1.917
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 7 of 7 PUBLICATION DATE: 06/27/2001 Station ID: 8720587 SUPERCEDED DATE: 04/21/2003 Name: ST. AUGUSTINE BEACH, ATLANTIC OCEAN FLORIDA NOAA Chart: 11486 Latitude: 29° 51.4' N USGS Quad: ST AUGUSTINE BEACH Longitude: 81° 15.8' W 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 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.