U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 5
Station ID: 8414249 PUBLICATION DATE: 12/20/2011
Name: OCEANVILLE, DEER ISLAND
ME
NOAA Chart: 13313 Latitude: 44° 11.5' N ( 44.19231)
USGS Quad: STINSON NECK Longitude: 68° 37.3' W ( -68.62093)
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: 4249 A 2010
DESIGNATION: 8414249 A
MONUMENTATION: Tidal Station disk VM#: 19598
AGENCY: NOS IDB PID#:
SETTING CLASSIFICATION: Bedrock outcrop OPUS PID:
LATITUDE: 44° 11.5' N ( 44.19231) LONGITUDE: 68° 37.3' W ( -68.62097)
The primary bench mark is a disk set flush in bedrock outcrop that extends north
into the water forming a point east of the Liberty Pole Point Rd docks, 44.95 m
(147.5 ft) NE of bench mark 841 4249 B, 37.70 m (123.7 ft) north of the
centerline of Liberty Pole Point Rd, 20.30 m (66.6 ft) ENE of the eastern edge
of the stone block wall of the northeastern most pier, and 2.20 m (7.2 ft) below
the highest point of bedrock outcrop.
BENCH MARK STAMPING: 4249 B 2010
DESIGNATION: 8414249 B
MONUMENTATION: Tidal Station disk VM#: 19599
AGENCY: NOS IDB PID#:
SETTING CLASSIFICATION: Bedrock outcrop OPUS PID:
LATITUDE: 44° 11.5' N ( 44.19203) LONGITUDE: 68° 37.3' W ( -68.62122)
The bench mark is a disk set flush in exposed bedrock in the lawn SE of the
docks and north of Liberty Pole Point Rd just past the turn off to the dock,
46.55 m (152.7 ft) NNW of bench mark 841 4249 E, 21.35 m (70.0 ft) SE of the SE
corner of the storage building on the western dock, 19.65 m (64.4 ft) ENE of the
unnumbered power pole that supplies the docks, 8.40 m (27.5 ft) NNW of the
centerline of Liberty Pole Point Rd and flush with grade.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 5
Station ID: 8414249 PUBLICATION DATE: 12/20/2011
Name: OCEANVILLE, DEER ISLAND
ME
NOAA Chart: 13313 Latitude: 44° 11.5' N ( 44.19231)
USGS Quad: STINSON NECK Longitude: 68° 37.3' W ( -68.62093)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 4249 C 2010
DESIGNATION: 8414249 C
MONUMENTATION: Tidal Station disk VM#: 19600
AGENCY: NOS IDB PID#:
SETTING CLASSIFICATION: Bedrock outcrop OPUS PID#: BBBV43
LATITUDE: 44° 11.5' N ( 44.19211) LONGITUDE: 68° 37.3' W ( -68.62144)
The bench mark is a disk set flush in a bedrock outcrop that forms a point
extending NNE into the water separating the eastern and western docks on Liberty
Pole Point Rd, 38.70 m (127.0 ft) NNW of the centerline of Liberty Pole Point
Rd, 31.15 m (102.2 ft) NNW of bench mark 841 4249 B, 25.60 m (84.0 ft) WSW of
the eastern most stone block side wall of the docks, 18.08 m (59.3 ft) ENE of
the face of the western most stone block sidewall of the docks.
BENCH MARK STAMPING: 4249 D 2010
DESIGNATION: 8414249 D
MONUMENTATION: Tidal Station disk VM#: 19601
AGENCY: NOS IDB PID#:
SETTING CLASSIFICATION: Bedrock outcrop OPUS PID:
LATITUDE: 44° 11.5' N ( 44.19178) LONGITUDE: 68° 37.3' W ( -68.62206)
The bench mark is a disk set flush in the top of a small bedrock point extending
NE into the water on the NW end of the beach SW of the docks that run parallel
with the western pier, 55.54 m (182.2 ft) WSW of bench mark 841 4249 C, 49.96 m
(163.9 ft) NW of the centerline of Liberty Pole Point Rd at the small stream
culvert, 37.49 m (123.0 ft) WSW of the western most stone block sidewall of the
docks.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 5
Station ID: 8414249 PUBLICATION DATE: 12/20/2011
Name: OCEANVILLE, DEER ISLAND
ME
NOAA Chart: 13313 Latitude: 44° 11.5' N ( 44.19231)
USGS Quad: STINSON NECK Longitude: 68° 37.3' W ( -68.62093)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 4249 E 2010
DESIGNATION: 8414249 E
MONUMENTATION: Tidal Station disk VM#: 19602
AGENCY: NOS IDB PID#:
SETTING CLASSIFICATION: Bedrock outcrop OPUS PID:
LATITUDE: 44° 11.5' N ( 44.19150) LONGITUDE: 68° 37.3' W ( -68.62108)
The bench mark is a disk set flush in exposed bedrock near the center of the
field to the south of the docks and Liberty Pole Point Rd close to a small rise
and an apple tree, 46.55 m (152.7 ft) SSE of bench mark 841 4249 B, 34.70 m
(113.8 ft) south of the centerline of Liberty Pole Point Rd, 30.07 m (98.7 ft)
south of power pole 8, 6.15 m (20.2 ft) SSE of a lone apple tree in the middle
of the field.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 5
Station ID: 8414249 PUBLICATION DATE: 12/20/2011
Name: OCEANVILLE, DEER ISLAND
ME
NOAA Chart: 13313 Latitude: 44° 11.5' N ( 44.19231)
USGS Quad: STINSON NECK Longitude: 68° 37.3' W ( -68.62093)
T I D A L D A T U M S
Tidal datums at OCEANVILLE, DEER ISLAND based on:
LENGTH OF SERIES: 4 MONTHS
TIME PERIOD: April 2010 - July 2010
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 8413320 BAR HARBOR, FRENCHMAN BAY
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
MEAN HIGHER HIGH WATER MHHW = 3.242
MEAN HIGH WATER MHW = 3.114
MEAN SEA LEVEL MSL = 1.614
MEAN TIDE LEVEL MTL = 1.612
MEAN LOW WATER MLW = 0.109
MEAN LOWER LOW WATER MLLW = 0.000
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
4249 A 2010 4.079 0.965
4249 B 2010 5.863 2.749
4249 C 2010 4.205 1.091
4249 D 2010 4.245 1.131
4249 E 2010 7.716 4.602
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 5
Station ID: 8414249 PUBLICATION DATE: 12/20/2011
Name: OCEANVILLE, DEER ISLAND
ME
NOAA Chart: 13313 Latitude: 44° 11.5' N ( 44.19231)
USGS Quad: STINSON NECK Longitude: 68° 37.3' W ( -68.62093)
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.