U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 5 Station ID: 8729084 PUBLICATION DATE: 11/13/2003 Name: PARKER, EAST BAY FL NOAA Chart: 11389 Latitude: 30° 7.6' N ( 30.12670) USGS Quad: SPRINGFIELD Longitude: 85° 36.7' W ( -85.61170) To reach the tidal bench marks from the Post Office in Parker, proceed west on U.S. Business Highway 98 for 1.0 km (0.6 mi) to Pitts Avenue, then south and east on Pitts Avenue for 0.5 km (0.3 mi) to Germaine Avenue, then south on Germaine Avenue for 0.3 km (0.2 mi) to its end at Loftin Avenue, then west on Loftin Avenue for 0.2 km (0.1 mi) to the Askew residence. The bench marks are in the vicinity of the roads and the highway. The tide gage and staff were located on a free standing structure in East Bay. T I D A L B E N C H M A R K S PRIMARY BENCH MARK STAMPING: 9084 A 1976 DESIGNATION: 872 9084 A TIDAL MONUMENTATION: Tidal Station disk VM#: 9979 AGENCY: National Ocean Survey (NOS) IDB PID#: BE2975 SETTING CLASSIFICATION: Copper-clad steel rod OPUS PID: LATITUDE: 30° 7.6' N ( 30.12670) LONGITUDE: 85° 36.5' W ( -85.60830) The primary bench mark is a disk located 26.0 m (85.3 ft) east of the NE corner of a two story house, 8 m (25 ft) SE of the intersection of Germaine and Loftin Street, and 3.78 m (12.4 ft) east of Power Pole #64942. The bench mark is set 18 cm (0.6 ft) below ground level, crimped to the top of a copper-clad steel rod driven 12 m (40 ft), to refusal and encased in PVC pipe and concrete kickblock.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 5 Station ID: 8729084 PUBLICATION DATE: 11/13/2003 Name: PARKER, EAST BAY FL NOAA Chart: 11389 Latitude: 30° 7.6' N ( 30.12670) USGS Quad: SPRINGFIELD Longitude: 85° 36.7' W ( -85.61170) T I D A L B E N C H M A R K S BENCH MARK STAMPING: H 114 1945 DESIGNATION: H 114 MONUMENTATION: Bench Mark disk VM#: 9978 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: BE0791 SETTING CLASSIFICATION: Concrete monument OPUS PID: LATITUDE: 30° 7.9' N ( 30.13170) LONGITUDE: 85° 36.7' W ( -85.61170) The bench mark is a disk set in the top of a concrete monument, 1.0 km (0.6 mi) west along U.S. Highway 98 from the Post Office at Parker, 59 m (195 ft) west of a gas station, 13 m (42 ft) north of the centerline of the highway, 0.34 m (1.1 ft) north of a steel witness post, and is 6 cm (0.2 ft) above ground level. BENCH MARK STAMPING: 9084 B 1976 DESIGNATION: 872 9084 B TIDAL MONUMENTATION: Tidal Station disk VM#: 9980 AGENCY: National Ocean Survey (NOS) IDB PID#: BE2974 SETTING CLASSIFICATION: Copper-clad steel rod OPUS PID: LATITUDE: 30° 7.7' N ( 30.12830) LONGITUDE: 85° 36.6' W ( -85.61000) The bench mark is a disk located 23.93 m (78.5 ft) NE of the Duncan residence, 7 m (23 ft) NW of the intersection of Pitts Avenue and Germaine Street, 2.35 m (7.7 ft) west of a powerline pole, and 0.3 m (1 ft) south of a witness post. The bench mark is set 18 cm (0.6 ft) below ground level, crimped to the top of a copper-clad steel rod driven 12 m (40 ft), and encased in PVC pipe and concrete kickblock.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 5 Station ID: 8729084 PUBLICATION DATE: 11/13/2003 Name: PARKER, EAST BAY FL NOAA Chart: 11389 Latitude: 30° 7.6' N ( 30.12670) USGS Quad: SPRINGFIELD Longitude: 85° 36.7' W ( -85.61170) T I D A L B E N C H M A R K S BENCH MARK STAMPING: DESIGNATION: NO STAMPING 1 ALIAS: PARKER POINT 3 RM 1910 MONUMENTATION: Reference Mark disk VM#: 9981 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: BE2976 SETTING CLASSIFICATION: Concrete monument OPUS PID: LATITUDE: 30° 7.6' N ( 30.12670) LONGITUDE: 85° 36.6' W ( -85.61000) The bench mark is a bottle top set in the top of a truncated concrete monument, 12.13 m (39.8 ft) NW of the NW corner of the Askew residence, 5.18 m (17.0 ft) NW of a concrete stairway leading down to the shoreline, and 6 cm (0.2 ft) above ground level. The bench mark is designated as PARKER POINT RM 1910.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 5 Station ID: 8729084 PUBLICATION DATE: 11/13/2003 Name: PARKER, EAST BAY FL NOAA Chart: 11389 Latitude: 30° 7.6' N ( 30.12670) USGS Quad: SPRINGFIELD Longitude: 85° 36.7' W ( -85.61170) T I D A L D A T U M S Tidal datums at PARKER, EAST BAY based on: LENGTH OF SERIES: 1 MONTH TIME PERIOD: November 1976 - November 1976 TIDAL EPOCH: 1983-2001 CONTROL TIDE STATION: 8729108 PANAMA CITY, ST. ANDREW BAY Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS: MEAN HIGHER HIGH WATER MHHW = 0.432 MEAN HIGH WATER MHW = 0.417 MEAN TIDE LEVEL MTL = 0.219 MEAN SEA LEVEL MSL = 0.217 North American Vertical Datum NAVD88 = 0.188 MEAN LOW WATER MLW = 0.021 MEAN LOWER LOW WATER MLLW = 0.000 North American Vertical Datum (NAVD88) Bench Mark Elevation Information In METERS above: Stamping or Designation MLLW MHW 9084 A 1976 4.049 3.632 H 114 1945 6.659 6.242 9084 B 1976 4.517 4.100 NO STAMPING 1 4.052 3.635
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 5 Station ID: 8729084 PUBLICATION DATE: 11/13/2003 Name: PARKER, EAST BAY FL NOAA Chart: 11389 Latitude: 30° 7.6' N ( 30.12670) USGS Quad: SPRINGFIELD Longitude: 85° 36.7' W ( -85.61170) 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.