U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 5 Station ID: 8729882 PUBLICATION DATE: 01/23/2004 Name: FORT PICKENS, PENSACOLA BAY FL NOAA Chart: 11383 Latitude: 30° 19.8' N ( 30.33000) USGS Quad: FORT BARRANCAS Longitude: 87° 17.5' W ( -87.29170) To reach the tidal bench marks from the intersection of State Highway C-339 and Fort Pickens Road in Pensacola Beach, proceed WSW on Fort Pickens Road for 15.3 km (9.5 mi) to the end of the road at the fishing pier at Fort Pickens. The bench marks are on the massive sea wall surounding Fort Pickens. The tide gage and staff were located on the fishing pier. T I D A L B E N C H M A R K S PRIMARY BENCH MARK STAMPING: 9882 A 1977 DESIGNATION: 872 9882 A TIDAL MONUMENTATION: Tidal Station disk VM#: 10293 AGENCY: National Ocean Survey (NOS) IDB PID#: BG3613 SETTING CLASSIFICATION: Concrete sea wall OPUS PID#: BG3613 LATITUDE: 30° 19.8' N ( 30.33000) LONGITUDE: 87° 17.5' W ( -87.29170) The primary bench mark is a disk set in the top of the massive concrete sea wall along the north side of Fort Pickens, 89 m (293 ft) NNE of the park headquarters, 7.62 m (25.0 ft) north of the centerline of the paved drive along the sea wall, 3.66 m (12.0 ft) west of the center of the beginning of the pier, 0.79 m (2.6 ft) NW of a telephone booth on the pier and 0.3 m (1 ft) west of the break in the sea wall at the pier.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 5 Station ID: 8729882 PUBLICATION DATE: 01/23/2004 Name: FORT PICKENS, PENSACOLA BAY FL NOAA Chart: 11383 Latitude: 30° 19.8' N ( 30.33000) USGS Quad: FORT BARRANCAS Longitude: 87° 17.5' W ( -87.29170) T I D A L B E N C H M A R K S BENCH MARK STAMPING: PAYNE 1942 DESIGNATION: PAYNE MONUMENTATION: Triangulation Station disk VM#: 10294 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: BG1830 SETTING CLASSIFICATION: Sea wall OPUS PID: LATITUDE: 30° 19.7' N ( 30.32830) LONGITUDE: 87° 17.8' W ( -87.29670) The bench mark is a disk located on the SW corner of the old Fort Pickens seaway, 518 m (1700 ft) SW of bench mark 9882 A 1977, and 0.70 m (2.3 ft) east of the SW corner of the concrete sea wall at Battery Payne #7. BENCH MARK STAMPING: 1 1919 DESIGNATION: 872 9882 TIDAL 5 MONUMENTATION: Tidal Station disk VM#: 10295 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: BG1832 SETTING CLASSIFICATION: Sea wall OPUS PID#: BG1832 LATITUDE: 30° 19.8' N ( 30.33000) LONGITUDE: 87° 17.5' W ( -87.29170) The bench mark is a disk set in top of the north sea wall near the Engineers Wharf, 335 m (1100 ft) ESE of bench mark 9882 A 1977, 15 m (50 ft) west of a narrow-gage tramway leading from the Engineers Wharf (the smaller of the two wharves at Fort Pickens), and 0.21 m (0.7 ft) from the north edge of the wall.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 5 Station ID: 8729882 PUBLICATION DATE: 01/23/2004 Name: FORT PICKENS, PENSACOLA BAY FL NOAA Chart: 11383 Latitude: 30° 19.8' N ( 30.33000) USGS Quad: FORT BARRANCAS Longitude: 87° 17.5' W ( -87.29170) T I D A L B E N C H M A R K S BENCH MARK STAMPING: 2 1919 DESIGNATION: 872 9882 TIDAL 6 MONUMENTATION: Tidal Station disk VM#: 10296 AGENCY: US Coast and Geodetic Survey (USC&GS) IDB PID#: BG1836 SETTING CLASSIFICATION: Concrete sea wall OPUS PID#: BG1836 LATITUDE: 30° 19.8' N ( 30.33000) LONGITUDE: 87° 17.3' W ( -87.28830) The bench mark is a disk set in top of the east concrete sea wall, directly over a culvert, 427 m (1400 ft) ESE of bench mark 9882 A 1977, 24 m (80 ft) south of the NE corner of the sea wall at Old Fort Pickens, and 0.21 m (0.7 ft) west of the east edge of the sea wall.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 5 Station ID: 8729882 PUBLICATION DATE: 01/23/2004 Name: FORT PICKENS, PENSACOLA BAY FL NOAA Chart: 11383 Latitude: 30° 19.8' N ( 30.33000) USGS Quad: FORT BARRANCAS Longitude: 87° 17.5' W ( -87.29170) T I D A L D A T U M S Tidal datums at FORT PICKENS, PENSACOLA BAY based on: LENGTH OF SERIES: 3 MONTHS TIME PERIOD: March 1977 - May 1977 TIDAL EPOCH: 1983-2001 CONTROL TIDE STATION: 8729840 PENSACOLA, PENSACOLA BAY Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS: MEAN HIGHER HIGH WATER MHHW = 0.350 MEAN HIGH WATER MHW = 0.346 MEAN TIDE LEVEL MTL = 0.177 MEAN SEA LEVEL MSL = 0.169 North American Vertical Datum NAVD88 = 0.077 MEAN LOW WATER MLW = 0.008 MEAN LOWER LOW WATER MLLW = 0.000 North American Vertical Datum (NAVD88) Bench Mark Elevation Information In METERS above: Stamping or Designation MLLW MHW 9882 A 1977 3.458 3.112 PAYNE 1942 3.454 3.108 1 1919 3.469 3.123 2 1919 3.515 3.169
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 5 Station ID: 8729882 PUBLICATION DATE: 01/23/2004 Name: FORT PICKENS, PENSACOLA BAY FL NOAA Chart: 11383 Latitude: 30° 19.8' N ( 30.33000) USGS Quad: FORT BARRANCAS Longitude: 87° 17.5' W ( -87.29170) 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.