U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 11 Station ID: 8720587 PUBLICATION DATE: 12/14/2009 Name: ST. AUGUSTINE BEACH, ATLANTIC OCEAN FL NOAA Chart: 11486 Latitude: 29° 51.4' N ( 29.85670) USGS Quad: ST AUGUSTINE BEACH Longitude: 81° 15.8' W ( -81.26330) 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
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 11 Station ID: 8720587 PUBLICATION DATE: 12/14/2009 Name: ST. AUGUSTINE BEACH, ATLANTIC OCEAN FL NOAA Chart: 11486 Latitude: 29° 51.4' N ( 29.85670) USGS Quad: ST AUGUSTINE BEACH Longitude: 81° 15.8' W ( -81.26330) 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: Tidal Station disk VM#: 5216 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: AQ0346 SETTING CLASSIFICATION: Concrete monument OPUS PID#: AQ0346 LATITUDE: 29° 51.4' N ( 29.85694) LONGITUDE: 81° 15.9' W ( -81.26583) The primary bench mark is a disk set in the top of a round concrete monument projecting 0.09 m (0.3 ft) above the level of the road, in the NE median island, in the pier parking lot, 36.58 m (120.0 ft) NE of the NW corner of the 1-story frame pier office building, 32.31 m (106.0 ft) east of the west end of the median island, 31.70 m (104.0 ft) east of the west end of the median island, 27.13 m (89.0 ft) SSE of the SE corner of a picnic pavilion, 18.35 m (60.2 ft) west of a 0.76 m (2.5 ft) high concrete wall on the west side of a 6.10 m (20.0 ft) wide concrete wall on the west side of a 6.10 m (20.0 ft) wide concrete walkway, 13.05 m (42.8 ft) east of a 10-inch square concrete light pole numbered 36351156102, 10.36 m (34.0 ft) north of the extended centerline of the pier, , 9.45 m (31.0 ft) north of the centerline of the pier, 8.38 m (27.5 ft) west of the east end of the median island, 1.49 m (4.9 ft) south of the back of the north curb, 1.31 m (4.3 ft) north of the back of the south curb, and 0.15 m (0.5 ft) east of a carsonite witness post.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 11 Station ID: 8720587 PUBLICATION DATE: 12/14/2009 Name: ST. AUGUSTINE BEACH, ATLANTIC OCEAN FL NOAA Chart: 11486 Latitude: 29° 51.4' N ( 29.85670) USGS Quad: ST AUGUSTINE BEACH Longitude: 81° 15.8' W ( -81.26330) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 0587 E 1993 DESIGNATION: 872 0587 E TIDAL MONUMENTATION: Tidal Station disk VM#: 85 AGENCY: National Ocean Service (NOS) IDB PID#: SETTING CLASSIFICATION: Stainless steel rod OPUS PID: LATITUDE: 29° 51.4' N ( 29.85694) LONGITUDE: 81° 16.0' W ( -81.26722) The bench mark is a disk located at the entrance to the St. Johns County Municipal Fishing Pier parking lot, 24.99 m (82.0 ft) SSE of a 10-inch square concrete light pole Number 3 6351 0558 02, 23.47 m (77.0 ft) south of a 1.22 m (4.0 ft) tall chain link fence, 18.26 m (59.9 ft) SSE of an 8-inch water valve cover, 17.37 m (57.0 ft) east of the centerline of State Highway A1A (Beach Boulevard), 12.19 m (40.0 ft) NW of the center of a drain in the parking lot, 9.49 m (310.0 ft) north of the centerline of the most northerly entrance to the pier parking lot, 8.60 m (28.2 ft) east of the back edge of a 1.52 m (5.0 ft) wide concrete sidewalk along the east side of A1A, 3.93 m (12.9 ft) west of the back of the parking lot curb and 0.30 m (1.0 ft) west of a carsonite witness post. The bench mark is projecting 0.06 m (0.2 ft) above the level of the ground, crimped to the top of a stainless steel rod driven 8.53 m (28.0 ft) to refusal, and encased in a 5-inch PVC pipe with concrete kickblock.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 11 Station ID: 8720587 PUBLICATION DATE: 12/14/2009 Name: ST. AUGUSTINE BEACH, ATLANTIC OCEAN FL NOAA Chart: 11486 Latitude: 29° 51.4' N ( 29.85670) USGS Quad: ST AUGUSTINE BEACH Longitude: 81° 15.8' W ( -81.26330) 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: Bench Mark disk VM#: 5212 AGENCY: US Navy (USN) IDB PID#: AQ0345 SETTING CLASSIFICATION: Concrete monument OPUS PID: LATITUDE: 29° 51.6' N ( 29.86056) LONGITUDE: 81° 17.0' W ( -81.28389) The bench mark is a disk set in the top of an 8-inch square concrete monument projecting 0.06 m (0.2 ft) above the level of the ground, 16.15 m (53.0 ft) west of the centerline of State Road A1A, 14.9 m (49.0 ft) south of the centerline of Pope Road, 8.08 m (26.5 ft) SSW of the south end of the top of a pipe culvert under Pope Road, 1.95 m (6.4 ft) south of a wooden power pole and 0.09 m (0.3 ft) east of a carsonite witness post.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 11 Station ID: 8720587 PUBLICATION DATE: 12/14/2009 Name: ST. AUGUSTINE BEACH, ATLANTIC OCEAN FL NOAA Chart: 11486 Latitude: 29° 51.4' N ( 29.85670) USGS Quad: ST AUGUSTINE BEACH Longitude: 81° 15.8' W ( -81.26330) T I D A L B E N C H M A R K S BENCH MARK STAMPING: C 322 1970 DESIGNATION: C 322 MONUMENTATION: Bench Mark disk VM#: 5215 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: AQ0347 SETTING CLASSIFICATION: Concrete monument OPUS PID#: AQ0347 LATITUDE: 29° 51.3' N ( 29.85583) LONGITUDE: 81° 16.0' W ( -81.26694) The bench mark is a disk set in a concrete monument and level with the ground, at the north side of the St. Augustine Beach Fire Station at 370 South A1A (Beach Boulevard), located at the south side of the parking lot for the St. John's County Municipal Fishing Pier, 38.71 m (127.0 ft) east of the centerline of A1A (Beach Boulevard), 30.08 m (98.7 ft) east of the back edge of a 1.52 m (5.0 ft) wide concrete sidewalk on the east side of A1A, 7.41 m (24.3 ft) NE of the NE corner of the Fire Station, 6.6 m (21.7 ft) NW of the NW corner of the fire station garage, 4.88 m (16.0 ft) south of a 1.52 m (5.0 ft) sidewalk, 1.37 m (4.5 ft) east of the east edge of the concrete driveway to the fire station, 0.76 m (2.5 ft) east of an 8-inch palm tree, and 0.61 m (2.0 ft) south of the concrete light pole No. 36351075404.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 6 of 11 Station ID: 8720587 PUBLICATION DATE: 12/14/2009 Name: ST. AUGUSTINE BEACH, ATLANTIC OCEAN FL NOAA Chart: 11486 Latitude: 29° 51.4' N ( 29.85670) USGS Quad: ST AUGUSTINE BEACH Longitude: 81° 15.8' W ( -81.26330) 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: Bench Mark disk VM#: 13349 AGENCY: US Army Corps of Engineers (USE) IDB PID#: SETTING CLASSIFICATION: Concrete monument OPUS PID: LATITUDE: 29° 51.4' N ( 29.85694) LONGITUDE: 81° 15.9' W ( -81.26556) The bench mark is a disk set in the top of a 4-inch square concrete monument recessed 0.03 m (0.1 ft) below the level of the ground, 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 office building, 28.50 m (93.5 ft) SE of bench mark D 322, 8.23 m (27.0 ft) west of a 0.76 m (2.5 ft) high concrete wall on the west side of a 6.10 m (20.0 ft) wide concrete walkway, 7.68 m (25.2 ft) WNW of a 10-inch square concrete light pole, 1.98 m (6.5 ft) south of the south side of the wood walkway to the pier, 7.80 m (25.6 ft) NW of a concrete light pole, and 0.30 m (1.0 ft) west of a carsonite witness post.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 7 of 11 Station ID: 8720587 PUBLICATION DATE: 12/14/2009 Name: ST. AUGUSTINE BEACH, ATLANTIC OCEAN FL NOAA Chart: 11486 Latitude: 29° 51.4' N ( 29.85670) USGS Quad: ST AUGUSTINE BEACH Longitude: 81° 15.8' W ( -81.26330) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 0587 F 1997 DESIGNATION: 872 0587 F MONUMENTATION: Flange-encased Rod VM#: 13702 AGENCY: National Ocean Service (NOS) IDB PID#: SETTING CLASSIFICATION: Stainless steel rod in sleeve OPUS PID: LATITUDE: 29° 51.4' N ( 29.85647) LONGITUDE: 81° 16.0' W ( -81.26619) 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, 26.21 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 recessed 0.06 m (0.2 ft) below the level of the ground, being the top of a stainless steel rod driven 18.1 m (59 ft) to refusal, encased in a 5-inch NOS logo cap.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 8 of 11 Station ID: 8720587 PUBLICATION DATE: 12/14/2009 Name: ST. AUGUSTINE BEACH, ATLANTIC OCEAN FL NOAA Chart: 11486 Latitude: 29° 51.4' N ( 29.85670) USGS Quad: ST AUGUSTINE BEACH Longitude: 81° 15.8' W ( -81.26330) 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) IDB PID#: SETTING CLASSIFICATION: Stainless steel rod in sleeve OPUS PID#: DM6118 LATITUDE: 29° 51.3' N ( 29.85444) LONGITUDE: 81° 16.0' W ( -81.26722) The bench mark is a flange-encased rod located near the intersection of Highway A1A and 15th Street in St. Augustine Beach, 32.46 m (106.5 ft) south of the sign for Better Homes Realty, 28.19 m (92.5 ft) west of a wooden power pole with a transformer attached, 11.37 m (37.3 ft) east of the centerline of State Road A1A (Beach Boulevard), 5.79 m (19.0 ft) north of the centerline of 15th Street, 4.27 m (14.0 ft) WNW of a storm drain, 2.74 m (9.0 ft) NNE of an 8-inch water valve cover, 1.16 m (3.8 ft) NE of the junction of a 1.52 m (5.0 ft) concrete sidewalk and the back of the curb on the north side of 15th Street, of 1.01 m (3.3 ft) north of the back of the curb and (1.0 ft) west of a carsonite witness post. The datum point is recessed 0.06 m (0.2 ft) below the level of the ground, being the top of a stainless steel rod driven to refusal at a depth of 15.5 m (51.0 ft), encased in a 5-inch NGS logo cap.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 9 of 11 Station ID: 8720587 PUBLICATION DATE: 12/14/2009 Name: ST. AUGUSTINE BEACH, ATLANTIC OCEAN FL NOAA Chart: 11486 Latitude: 29° 51.4' N ( 29.85670) USGS Quad: ST AUGUSTINE BEACH Longitude: 81° 15.8' W ( -81.26330) T I D A L B E N C H M A R K S BENCH MARK STAMPING: T 475 1998 DESIGNATION: T 475 MONUMENTATION: Bench Mark disk VM#: 19391 AGENCY: FL Department of Environmental Protection (FLDEP) IDB PID#: SETTING CLASSIFICATION: Concrete headwall OPUS PID: LATITUDE: 29° 51.6' N ( 29.86056) LONGITUDE: 81° 17.0' W ( -81.28389) The bench mark is a disk set flush in the top of a concrete headwall level with the ground and level with State Road 312, 36.12 m (118.5 ft) NW of the NW corner of a building (American Home Patient, Thrift Shoppe), 32.00 m (105.0 ft) east of a steel pole Number 36151968607 that is supporting a large overhead sign (Anastasia Blvd next signal), 14.05 m (46.1 ft) south of the approximate centerline of State Road 312, 5.79 m (19.0 ft) SW of an aluminum light pole Number 361519986, 2.04 m (6.7 ft) west of the east end of the headwall and 1.77 m (5.8 ft) east of the west end of the headwall.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 10 of 11 Station ID: 8720587 PUBLICATION DATE: 12/14/2009 Name: ST. AUGUSTINE BEACH, ATLANTIC OCEAN FL NOAA Chart: 11486 Latitude: 29° 51.4' N ( 29.85670) USGS Quad: ST AUGUSTINE BEACH Longitude: 81° 15.8' W ( -81.26330) T I D A L D A T U M S Tidal datums at ST. AUGUSTINE BEACH, ATLANTIC OCEAN based on: LENGTH OF SERIES: 8 YEARS TIME PERIOD: June 1992 - May 2000 TIDAL EPOCH: 1983-2001 CONTROL TIDE STATION: 8720220 MAYPORT (FERRY DEPOT), SAINT JOHNS RIVER Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS: HIGHEST OBSERVED WATER LEVEL (09/24/1992) = 2.348 MEAN HIGHER HIGH WATER MHHW = 1.569 MEAN HIGH WATER MHW = 1.454 North American Vertical Datum NAVD88 = 0.956 MEAN TIDE LEVEL MTL = 0.752 MEAN SEA LEVEL MSL = 0.742 MEAN LOW WATER MLW = 0.049 MEAN LOWER LOW WATER MLLW = 0.000 LOWEST OBSERVED WATER LEVEL (03/13/1993) = -0.989 North American Vertical Datum (NAVD88) Bench Mark Elevation Information In METERS above: Stamping or Designation MLLW MHW D 322 1970 4.028 2.574 0587 E 1993 3.155 1.701 H 322 1970 2.717 1.263 C 322 1970 3.244 1.790 R-142 RESET 1995 4.276 2.822 0587 F 1997 4.016 2.562 0587 G 1997 2.772 1.318 T 475 1998 3.145 1.691 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 mark T 475 1998 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 11 of 11 Station ID: 8720587 PUBLICATION DATE: 12/14/2009 Name: ST. AUGUSTINE BEACH, ATLANTIC OCEAN FL NOAA Chart: 11486 Latitude: 29° 51.4' N ( 29.85670) USGS Quad: ST AUGUSTINE BEACH Longitude: 81° 15.8' W ( -81.26330) 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.