U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 6 PUBLICATION DATE: 03/18/1987 Station ID: 8721120 SUPERCEDED DATE: 04/21/2003 Name: DAYTONA BEACH SHORES FLORIDA NOAA Chart: 11486 Latitude: 29° 8.8' N USGS Quad: PORT ORANGE Longitude: 80° 57.8' W To reach the tidal bench marks from Daytona Beach Shores City Hall proceed 1.2 miles (1.9 km) south on South Atlantic Avenue to Dunlawton Boulevard, then 126.0 feet (38.4 m) west on Dunlawton Boulevard. The tide staff and gage are located on the Sunglow Fishing Pier. The bench marks are located along South Atlantic Avenue between Dunlawton Boulevard and Phillips Avenue. T I D A L B E N C H M A R K S PRIMARY BENCH MARK STAMPING: NO 1 1966 MONUMENTATION: Survey Disk VM#: 5274 AGENCY: PID#: AQ1371 SETTING CLASSIFICATION: Concrete Step The bench mark is at the base of the concrete bulkhead supporting the shore end of the Sunglow Fishing Pier, on the south side leading to the beach, and set in the top of the second concrete step. BENCH MARK STAMPING: NO 2 1966 MONUMENTATION: Survey Disk VM#: 5275 AGENCY: PID#: AQ1367 SETTING CLASSIFICATION: Concrete Base The bench mark is set flush in the concrete base of a storm sewer 12 feet (4 m) south of a fire hydrant and 3 feet (1 m) east of the curb of Atlantic Avenue, at the SW corner of South Atlantic and DeMottee Avenues.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 6 PUBLICATION DATE: 03/18/1987 Station ID: 8721120 SUPERCEDED DATE: 04/21/2003 Name: DAYTONA BEACH SHORES FLORIDA NOAA Chart: 11486 Latitude: 29° 8.8' N USGS Quad: PORT ORANGE Longitude: 80° 57.8' W T I D A L B E N C H M A R K S BENCH MARK STAMPING: NO 3 1966 MONUMENTATION: Survey Disk VM#: 5276 AGENCY: PID#: AQ1366 SETTING CLASSIFICATION: Concrete Base The bench mark is set flush in concrete base for a storm sewer on the NE corner of the intersection of Duhlawton Boulevard and Atlantic Avenue, 15 feet (5 m) west of the south end of the Ponce de Leon Motel, and 3 feet (1 m) east of Atlantic Avenue. BENCH MARK STAMPING: NO 4 1970 MONUMENTATION: Survey Disk VM#: 5277 AGENCY: PID#: AQ1373 SETTING CLASSIFICATION: Concrete Base The bench mark is set flush in a concrete base of a storm sewer on the east side of the intersection of south Atlantic and Phillips Avenues, 300 feet (91 m) west of the west end of the pier, 42 feet (13 m) south of a fire hydrant, in front of the Sunglow Fishing Pier parking lot, 16 feet (5 m) NW of a witness post that supports the sign Sunglow Fishing Pier, 11 feet (3 m) feet south a power pole, and 3 feet (1 m) east of the east curb of south Atlantic Avenue. BENCH MARK STAMPING: NO 5 1974 MONUMENTATION: Survey Disk VM#: 5278 AGENCY: PID#: AQ1563 SETTING CLASSIFICATION: Concrete Base The bench mark is set flush on the north side of a concrete base for a storm sewer on the SW corner of the intersection of Dahlia and South Atlantic Avenues, 0.3 mile (0.5 km) south along Atlantic Avenue from Daytona Beach Shores City Hall, 38 feet (12 m) south of the centerline of Dahlia Avenue, and 3 feet (1 m) west of the west curb of South Atlantic Avenue.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 6 PUBLICATION DATE: 03/18/1987 Station ID: 8721120 SUPERCEDED DATE: 04/21/2003 Name: DAYTONA BEACH SHORES FLORIDA NOAA Chart: 11486 Latitude: 29° 8.8' N USGS Quad: PORT ORANGE Longitude: 80° 57.8' W T I D A L B E N C H M A R K S BENCH MARK STAMPING: 1120 F 1978 MONUMENTATION: Survey Disk VM#: 5279 AGENCY: PID#: AQ2703 SETTING CLASSIFICATION: Unspecified Rod The bench mark is located at the NW corner of the intersection of South Atlantic and Raymond Avenue, 34.8 feet (10.6 m) west of the centerline of South Atlantic Avenue, 28.9 feet (8.8 m) north of the centerline of Raymond Avenue, and at curb level. The bench mark is at curb level crimped to an unspecified rod driven 30 feet (8 m) to refusal. BENCH MARK STAMPING: 1120 G 1978 MONUMENTATION: Survey Disk VM#: 5280 AGENCY: PID#: AQ1831 SETTING CLASSIFICATION: Unspecified Rod The bench mark is near the intersection of Dunlawton Boulevard and South Atlantic Avenue, 126.6 feet (38.6 m) west of the centerline of South Atlantic Avenue, 21.7 feet (6.6 m) south of the centerline of the eastbound lane of Dunlawton Boulevard, and 3.8 feet (1.2 m) east of power pole #162 HM1. The bench mark is at ground level, crimped to an unspecified rod, driven 34 feet (10 m) to refusal. BENCH MARK STAMPING: 1120 H 1978 MONUMENTATION: Survey Disk VM#: 5281 AGENCY: PID: SETTING CLASSIFICATION: Concrete Base The bench mark is set flush in a storm drain on the west side of Atlantic Avenue in the 3620 block, 344 feet (105 m) south of the centerline of Demott Avenue, 35.9 feet (10.9 m) west of the centerline of Atlantic Avenue, and 6.3 feet (1.9 m) north of power pole #396 HM 717.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 6 PUBLICATION DATE: 03/18/1987 Station ID: 8721120 SUPERCEDED DATE: 04/21/2003 Name: DAYTONA BEACH SHORES FLORIDA NOAA Chart: 11486 Latitude: 29° 8.8' N USGS Quad: PORT ORANGE Longitude: 80° 57.8' W T I D A L B E N C H M A R K S BENCH MARK STAMPING: 1120 J 1978 MONUMENTATION: Survey Disk VM#: 5282 AGENCY: PID#: AQ1759 SETTING CLASSIFICATION: Concrete Base The bench mark is set flush in a storm drain, 38 feet (12 m) north of power pole #F361, 35 feet (11 m) east of the centerline of Atlantic Avenue, and 7.9 feet (2.4 m) SW of the SW corner of Ruble Hotel. BENCH MARK STAMPING: 79 78 A42 MONUMENTATION: Survey Disk VM#: 5283 AGENCY: PID#: AQ1830 SETTING CLASSIFICATION: Concrete Monument The bench mark is set flush in a concrete monument, 196.1 feet (59.8 m) north of Bench Mark 1120 F 1978, 21 feet (25 m) SE of the SE corner of a gift shop at the SW corner of intersection of Dunlawton and Atlantic Avenues, and 64.2 feet (19.6 m) east of NE corner of Handi-Way Food Store.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 6 PUBLICATION DATE: 03/18/1987 Station ID: 8721120 SUPERCEDED DATE: 04/21/2003 Name: DAYTONA BEACH SHORES FLORIDA NOAA Chart: 11486 Latitude: 29° 8.8' N USGS Quad: PORT ORANGE Longitude: 80° 57.8' W T I D A L D A T U M S Tidal datums at DAYTONA BEACH SHORES based on: LENGTH OF SERIES: 13 YEARS TIME PERIOD: 1967-1983 TIDAL EPOCH: 1960-1978 CONTROL TIDE STATION: 8720030 FERNANDINA Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in FEET: HIGHEST OBSERVED WATER LEVEL (05/26/1972) = 7.45 MEAN HIGHER HIGH WATER MHHW = 4.50 MEAN HIGH WATER MHW = 4.12 MEAN TIDE LEVEL MTL = 2.15 * NATIONAL GEODETIC VERTICAL DATUM NGVD29 = 2.02 MEAN LOW WATER MLW = 0.17 MEAN LOWER LOW WATER MLLW = 0.00 LOWEST OBSERVED WATER LEVEL (12/28/1967) = -1.94 * NGVD reference based on adjustment of 1976 and NOS levels of 1979-84. North American Vertical Datum (NAVD88) Bench Mark Elevation Information In FEET above: Stamping or Designation MLLW MHW NO 1 1966 17.34 13.22 NO 2 1966 19.97 15.85 NO 3 1966 21.11 16.99 NO 4 1970 22.73 18.61 NO 5 1974 22.06 17.94 1120 F 1978 18.86 14.74 1120 G 1978 17.45 13.33 1120 H 1978 21.37 17.25 1120 J 1978 21.90 17.78 79 78 A42 19.84 15.72
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 6 of 6 PUBLICATION DATE: 03/18/1987 Station ID: 8721120 SUPERCEDED DATE: 04/21/2003 Name: DAYTONA BEACH SHORES FLORIDA NOAA Chart: 11486 Latitude: 29° 8.8' N USGS Quad: PORT ORANGE Longitude: 80° 57.8' 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.