U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 5 PUBLICATION DATE: 10/11/1988 Station ID: 8726819 SUPERCEDED DATE: 04/21/2003 Name: SPECKLED TROUT FISH CAMP, OZONA, ST. JOSEPH SOUND FLORIDA NOAA Chart: 11412 Latitude: 28° 4.2' N USGS Quad: DUNEDIN Longitude: 82° 46.9' W To reach the tidal bench marks from the Ozona Post Office, proceed north for one block to Bay Street, then west on Bay Street to its end at Bayshore Drive, then south on Bayshore Drive for 300 feet (91 m) to the Speckled Trout Fish Camp. The bench marks are located in the vicinity of the Speckled Trout Fish Camp and Bayshore Drive. The tide gage and staff were located near the west end, and on the north side of the wooden pier west of the bait shop. T I D A L B E N C H M A R K S PRIMARY BENCH MARK STAMPING: NO 1 1975 MONUMENTATION: Survey Disk VM#: 7616 AGENCY: PID#: AL7398 SETTING CLASSIFICATION: Concrete Foundation The bench mark is set flush in the concrete foundation of a boat davit located at the Speckled Trout Fish Camp boat ramp, 47.0 feet (14.3 m) west of the centerline of Bayshore Drive, 9.0 feet (2.7 m) NE of the centerline of the boat ramp, and 1.6 feet (0.5 m) NE of the boat ramp edge. BENCH MARK STAMPING: M 102 1942 MONUMENTATION: Survey Disk VM#: 7615 AGENCY: PID#: AL6281 SETTING CLASSIFICATION: Concrete Monument The bench mark is set flush in a concrete monument one block north and two blocks west of the Ozona Post Office, 31.6 feet (9.6 m) south of the centerline of Bay Street, 8.1 feet (2.5 m) NE of the NE corner of the white frame house at 11 Bay Street, 1.7 feet (0.5 m) SE of power pole #12A2359-R, 1 foot (0.3 m) north of a witness post, and 0.3 foot (0.1 m) above ground level.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 5 PUBLICATION DATE: 10/11/1988 Station ID: 8726819 SUPERCEDED DATE: 04/21/2003 Name: SPECKLED TROUT FISH CAMP, OZONA, ST. JOSEPH SOUND FLORIDA NOAA Chart: 11412 Latitude: 28° 4.2' N USGS Quad: DUNEDIN Longitude: 82° 46.9' W T I D A L B E N C H M A R K S BENCH MARK STAMPING: NO 2 1975 MONUMENTATION: Survey Disk VM#: 7617 AGENCY: PID#: AL7397 SETTING CLASSIFICATION: Concrete Sidewalk The bench mark is set flush in the top of the southernmost of two parallel east/west sea walls located on the north property line of the Speckled Trout Fish Camp, 180 feet (55 m) SW of the junction of Bay Street and Bayshore Drive, 70 feet (21 m) west of the centerline of Bayshore Drive, and 3 feet (1 m) east of the junction of the two sea walls. BENCH MARK STAMPING: NO 4 1975 MONUMENTATION: Survey Disk VM#: 7618 AGENCY: PID#: AL7396 SETTING CLASSIFICATION: Copper-clad Steel Rod The bench mark is located NW of the bend between Bay Street and Bayshore Drive, 204 feet (62 m) NE of Bench Mark NO 2 1975, 33 feet (10 m) east of a wood bulkhead, 27 feet (8 m) WSW of a fence and 1-foot (0.3 m) diameter tree, and 2.0 feet (0.6 m) west of power pole #2-25700 with a witness sign. The bench mark is crimped to a copper-clad steel rod driven to refusal, encased in a PVC pipe and concrete, and level with the ground.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 5 PUBLICATION DATE: 10/11/1988 Station ID: 8726819 SUPERCEDED DATE: 04/21/2003 Name: SPECKLED TROUT FISH CAMP, OZONA, ST. JOSEPH SOUND FLORIDA NOAA Chart: 11412 Latitude: 28° 4.2' N USGS Quad: DUNEDIN Longitude: 82° 46.9' W T I D A L B E N C H M A R K S BENCH MARK STAMPING: 6819 F 1983 MONUMENTATION: Survey Disk VM#: 7619 AGENCY: PID#: AL7399 SETTING CLASSIFICATION: Concrete Monument The bench mark is set flush in the top of a concrete monument along Bayshore Drive, 50 feet (15 m) north of the centerline of the driveway for the house at 300 Bayshore Drive, 47.6 feet (14.5 m) south of the centerline of Banana Road, 14.5 feet (4.4 m) east of the centerline of Bayshore Drive, 3.9 feet (1.2 m) west of power pole 2A2201F with a witness sign, and level with the ground.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 5 PUBLICATION DATE: 10/11/1988 Station ID: 8726819 SUPERCEDED DATE: 04/21/2003 Name: SPECKLED TROUT FISH CAMP, OZONA, ST. JOSEPH SOUND FLORIDA NOAA Chart: 11412 Latitude: 28° 4.2' N USGS Quad: DUNEDIN Longitude: 82° 46.9' W T I D A L D A T U M S Tidal datums at SPECKLED TROUT FISH CAMP, OZONA, ST. JOSEPH SOUND based on: LENGTH OF SERIES: 1 MONTH TIME PERIOD: NOVEMBER 1975 TIDAL EPOCH: 1960-1978 CONTROL TIDE STATION: 8726761 DUNEDIN Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in FEET: HIGHEST OBSERVED WATER LEVEL (10/17/1975) = 4.11 MEAN HIGHER HIGH WATER MHHW = 3.00 MEAN HIGH WATER MHW = 2.67 MEAN TIDE LEVEL MTL = 1.61 MEAN LOW WATER MLW = 0.55 MEAN LOWER LOW WATER MLLW = 0.00 LOWEST OBSERVED WATER LEVEL (12/03/1975) = -0.92 North American Vertical Datum (NAVD88) Bench Mark Elevation Information In FEET above: Stamping or Designation MLLW MHW NO 1 1975 4.72 2.05 M 102 1942 8.79 6.12 NO 2 1975 6.09 3.42 NO 4 1975 9.28 6.61 6819 F 1983 7.37 4.70
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 5 PUBLICATION DATE: 10/11/1988 Station ID: 8726819 SUPERCEDED DATE: 04/21/2003 Name: SPECKLED TROUT FISH CAMP, OZONA, ST. JOSEPH SOUND FLORIDA NOAA Chart: 11412 Latitude: 28° 4.2' N USGS Quad: DUNEDIN Longitude: 82° 46.9' 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.