U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 6 Station ID: 8721136 PUBLICATION DATE: 06/28/2004 Name: NORTH TURNBULL BAY FL NOAA Chart: 11485 Latitude: 29° 5.0' N ( 29.08330) USGS Quad: NEW SMYRNA BEACH Longitude: 80° 58.0' W ( -80.96670) To reach the tidal bench marks from the intersection of Florida Highway 5A and U.S. Highway 1 in Port Orange, proceed south on U.S. Highway 1 for 2.7 km (1.7 mi) to the NW corner of the third (southern) bridge over North Turnbull Bay. The bench marks are located in the vicinity and SE of the third (southern) bridge over North Turnbull Bay. The tide gage and staff were located on the concrete wingwall of the bridge. T I D A L B E N C H M A R K S PRIMARY BENCH MARK STAMPING: 1136 F 1978 DESIGNATION: 872 1136 F TIDAL MONUMENTATION: Survey disk VM#: 5290 AGENCY: Florida Department of Transportation (FLDT) IDB PID#: AQ2617 SETTING CLASSIFICATION: Concrete abutment OPUS PID: LATITUDE: 29° 5.1' N ( 29.08500) LONGITUDE: 80° 58.0' W ( -80.96670) The primary bench mark is a disk set flush in the concrete abutment at the NW corner of the southbound lane of the third (southern) bridge over North Turnbull Bay, 6 m (19 ft) west of the centerline of U.S. Highway 1, 0.15 m (0.5 ft) north of the NW corner of the bridge, 0.12 m (0.4 ft) south of the north edge of the wing wall foundation of the bridge, and is 0.46 m (1.5 ft) above ground level.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 6 Station ID: 8721136 PUBLICATION DATE: 06/28/2004 Name: NORTH TURNBULL BAY FL NOAA Chart: 11485 Latitude: 29° 5.0' N ( 29.08330) USGS Quad: NEW SMYRNA BEACH Longitude: 80° 58.0' W ( -80.96670) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 1136 A 1978 C.L.B. DESIGNATION: 872 1136 A TIDAL MONUMENTATION: Survey disk VM#: 5285 AGENCY: Florida Department of Natural Resources (FLDNR) IDB PID#: AQ2614 SETTING CLASSIFICATION: Concrete monument OPUS PID: LATITUDE: 29° 5.0' N ( 29.08330) LONGITUDE: 80° 58.0' W ( -80.96670) The bench mark is a disk set flush in the top of a concrete monument, 165 m (540 ft) SE of the east corner of the third (southern) concrete bridge over the marsh area of North Turnbull Bay, 9.39 m (30.8 ft) NE of the centerline of the northbound lane of U.S. Highway 1, 2.29 m (7.5 ft) SE of power pole # 11921, 0.40 m (1.3 ft) SW of a witness post, and is level with the ground. BENCH MARK STAMPING: 1136 B 1978 C.L.B. DESIGNATION: 872 1136 B TIDAL MONUMENTATION: Survey disk VM#: 5286 AGENCY: Florida Department of Natural Resources (FLDNR) IDB PID#: AQ2613 SETTING CLASSIFICATION: Concrete monument OPUS PID#: AQ2613 LATITUDE: 29° 5.0' N ( 29.08330) LONGITUDE: 80° 57.9' W ( -80.96500) The bench mark is a disk set flush in the top of a concrete monument, 192 m (630 ft) SE of bench mark 1136 A 1978 C.L.B., 8.99 m (29.5 ft) NE of the centerline of the northbound lane of U.S. Highway 1, 1.52 m (5.0 ft) SE of power pole #11917, 0.55 m (1.8 ft) SW of a witness post, and is 12 cm (0.4 ft) below ground level.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 6 Station ID: 8721136 PUBLICATION DATE: 06/28/2004 Name: NORTH TURNBULL BAY FL NOAA Chart: 11485 Latitude: 29° 5.0' N ( 29.08330) USGS Quad: NEW SMYRNA BEACH Longitude: 80° 58.0' W ( -80.96670) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 1136 C 1978 C.L.B. DESIGNATION: 872 1136 C TIDAL MONUMENTATION: Survey disk VM#: 5287 AGENCY: Florida Department of Natural Resources (FLDNR) IDB PID#: AQ2612 SETTING CLASSIFICATION: Concrete monument OPUS PID: LATITUDE: 29° 4.9' N ( 29.08170) LONGITUDE: 80° 57.9' W ( -80.96500) The bench mark is a disk set flush in the top of a concrete monument, 160 m (525 ft) SE of bench mark 1136 B 1978 C.L.B., 10.82 m (35.5 ft) NE of the centerline of the northbound lane of U.S. Highway 1, 1.10 m (3.6 ft) NE of power pole #11914, 0.46 m (1.5 ft) SW of a steel witness post, and is level with the ground. BENCH MARK STAMPING: 1136 D 1978 DESIGNATION: 872 1136 D TIDAL MONUMENTATION: Survey disk VM#: 5288 AGENCY: Florida Department of Transportation (FLDT) IDB PID#: AQ2615 SETTING CLASSIFICATION: Concrete abutment wing wall OPUS PID: LATITUDE: 29° 5.0' N ( 29.08330) LONGITUDE: 80° 58.0' W ( -80.96670) The bench mark is a disk set flush in the bridge abutment wing wall at the SE end of the northbound lane of the third (southern) bridge over North Turnbull Bay, 5.79 m (19.0 ft) NE of the centerline of the northbound lane of U.S. Highway 1, 0.15 m (0.5 ft) NW of the SE end of the northbound bridge, and 0.06 m (0.2 ft) NE of the NE edge of the concrete railing.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 6 Station ID: 8721136 PUBLICATION DATE: 06/28/2004 Name: NORTH TURNBULL BAY FL NOAA Chart: 11485 Latitude: 29° 5.0' N ( 29.08330) USGS Quad: NEW SMYRNA BEACH Longitude: 80° 58.0' W ( -80.96670) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 1136 E 1978 DESIGNATION: 872 1136 E TIDAL MONUMENTATION: Bench Mark disk VM#: 5289 AGENCY: Florida Department of Transportation (FLDT) IDB PID#: AQ2616 SETTING CLASSIFICATION: Concrete abutment wing wall OPUS PID: LATITUDE: 29° 5.0' N ( 29.08330) LONGITUDE: 80° 58.0' W ( -80.96670) The bench mark is a disk set flush in the bridge abutment wing wall at the SE end of the third (southern) bridge over North Turnbull Bay, 5.55 m (18.2 ft) NE of the centerline of the southbound lane of U.S. Highway 1, 0.18 m (0.6 ft) NW of the SE end of the southbound bridge, 0.15 m (0.5 ft) south of a witness post, 0.06 m (0.2 ft) NE of the NE edge of the concrete guardrail, and 0.46 m (1.5 ft) above the highway. BENCH MARK STAMPING: 1136 H 1987 DESIGNATION: 872 1136 H TIDAL MONUMENTATION: Tidal Station disk VM#: 16576 AGENCY: National Ocean Service (NOS) IDB PID#: AQ2697 SETTING CLASSIFICATION: Stainless steel rod OPUS PID: LATITUDE: 29° 5.4' N ( 29.09000) LONGITUDE: 80° 58.2' W ( -80.97000) The bench mark is a disk located 112.78 m (370.0 ft) north of the NE corner of the northernmost bridge over Spruce Creek, 41.15 m (135.0 ft) south of the centerline of Harbor Road, 11.46 m (37.6 ft) east of the centerline of the northbound lane of U.S. Highway 1, 3.44 m (11.3 ft) south of a utility pole, 1.10 m (3.6 ft) NNW of a utility pole guy-wire, and 0.70 m (2.3 ft) WSW of a witness post. The bench mark is set 6 cm (0.2 ft) below ground level, crimped to the top of a stainless steel rod driven 13.4 m (44 ft) to refusal, and encased in a PVC pipe and concrete kickblock.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 6 Station ID: 8721136 PUBLICATION DATE: 06/28/2004 Name: NORTH TURNBULL BAY FL NOAA Chart: 11485 Latitude: 29° 5.0' N ( 29.08330) USGS Quad: NEW SMYRNA BEACH Longitude: 80° 58.0' W ( -80.96670) T I D A L D A T U M S Tidal datums at NORTH TURNBULL BAY based on: LENGTH OF SERIES: 6 MONTHS TIME PERIOD: November 1978 - April 1979 TIDAL EPOCH: 1983-2001 CONTROL TIDE STATION: 8721120 DAYTONA BEACH SHORES Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS: MEAN HIGHER HIGH WATER MHHW = 0.431 MEAN HIGH WATER MHW = 0.376 North American Vertical Datum NAVD88 = 0.361 MEAN TIDE LEVEL MTL = 0.201 MEAN SEA LEVEL MSL = 0.195 MEAN LOW WATER MLW = 0.026 MEAN LOWER LOW WATER MLLW = 0.000 North American Vertical Datum (NAVD88) Bench Mark Elevation Information In METERS above: Stamping or Designation MLLW MHW 1136 F 1978 2.824 2.448 1136 A 1978 C.L.B. 1.447 1.071 1136 B 1978 C.L.B. 1.541 1.165 1136 C 1978 C.L.B. 2.108 1.732 1136 D 1978 2.222 1.846 1136 E 1978 2.203 1.827 1136 H 1987 1.574 1.198
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 6 of 6 Station ID: 8721136 PUBLICATION DATE: 06/28/2004 Name: NORTH TURNBULL BAY FL NOAA Chart: 11485 Latitude: 29° 5.0' N ( 29.08330) USGS Quad: NEW SMYRNA BEACH Longitude: 80° 58.0' W ( -80.96670) 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.