U.S. DEPARTMENT OF COMMERCE
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National Ocean Service
Datums Page Page 1 of 5
Station ID: 9432373 PUBLICATION DATE: 07/08/2003
Name: BANDON, COQUILLE RIVER
OR
NOAA Chart: 18588 Latitude: 43° 7.2' N ( 43.12000)
USGS Quad: BANDON Longitude: 124° 24.8' W (-124.41300)
To reach the tidal bench marks from Bandon at the intersection of Riverside
Drive and Caroline Street, proceed west on Riverside Drive for 0.5 km (0.3 mi)
to Baltimore Avenue to the Port of Bandon. The bench marks are located in the
vicinity of the docks and along Riverside Drive. The tide gage and staff were
located on the east side of a pier, just west of the Bandon small boat harbor.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: 5 1922
DESIGNATION: 943 2373 TIDAL 5
MONUMENTATION: Tidal Station disk VM#: 8767
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: OA0426
SETTING CLASSIFICATION: Concrete base OPUS PID:
LATITUDE: 43° 7.2' N ( 43.12000) LONGITUDE: 124° 25.0' W (-124.41700)
The primary bench mark is a disk set flush in a concrete base of a wall which
serves as the first step of the U.S. Coast Guard Station on the south side of
the west end of First Street, across the street from an old U.S. Coast Guard
Station now occupied by Tiger Boat Manufacturing Company.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 5
Station ID: 9432373 PUBLICATION DATE: 07/08/2003
Name: BANDON, COQUILLE RIVER
OR
NOAA Chart: 18588 Latitude: 43° 7.2' N ( 43.12000)
USGS Quad: BANDON Longitude: 124° 24.8' W (-124.41300)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 2 1922
DESIGNATION: 943 2373 TIDAL 2
MONUMENTATION: Tidal Station disk VM#: 8766
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: OA0427
SETTING CLASSIFICATION: Concrete sidewalk OPUS PID:
LATITUDE: 43° 7.1' N ( 43.11830) LONGITUDE: 124° 24.9' W (-124.41500)
The bench mark is a disk set flush in a concrete sidewalk at the NW corner of a
masonry building which houses the Bandon Historic Society at the SW corner of
Second Street and Alabama Avenue.
BENCH MARK STAMPING: 6 1933
DESIGNATION: 943 2373 TIDAL 6
MONUMENTATION: Tidal Station disk VM#: 8768
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: OA0428
SETTING CLASSIFICATION: Concrete monument OPUS PID:
LATITUDE: 43° 7.1' N ( 43.11830) LONGITUDE: 124° 24.7' W (-124.41200)
The bench mark is a disk set flush in a 0.24 m (0.8 ft) square concrete monument
located in a parking lot at the SW corner of the intersection of Second Street
and Chicago Avenue, 8.53 m (28.0 ft) west of the centerline of Chicago Avenue,
5.49 m (18.0 ft) south of the south side of Second Street, 4.57 m (15.0 ft) east
of an abandoned building, and 0.06 m (0.2 ft) above ground level.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 5
Station ID: 9432373 PUBLICATION DATE: 07/08/2003
Name: BANDON, COQUILLE RIVER
OR
NOAA Chart: 18588 Latitude: 43° 7.2' N ( 43.12000)
USGS Quad: BANDON Longitude: 124° 24.8' W (-124.41300)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 2373 D 1977
DESIGNATION: 943 2373 D
MONUMENTATION: Tidal Station disk VM#: 8769
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Concrete aeration tank wall OPUS PID:
LATITUDE: 43° 7.2' N ( 43.12000) LONGITUDE: 124° 24.8' W (-124.41300)
The bench mark is a disk set vertically and flush on the south side of a
concrete aeration tank at the Bandon Water Pollution Control Plant, 80 m (262
ft) NE along Riverside Drive from the intersection of U.S. Highway 101 and
Filmore Street, 25.79 m (84.6 ft) west of the centerline of Riverside Drive,
16.49 m (54.1 ft) west of a 2 m (6 ft) high wire mesh fence, 7.25 m (23.8 ft)
NNE of the plant office building, and 0.73 m (2.4 ft) above the sidewalk.
BENCH MARK STAMPING: 2373 E 1977
DESIGNATION: 943 2373 E
MONUMENTATION: Tidal Station disk VM#: 8770
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Pipe OPUS PID:
LATITUDE: 43° 7.2' N ( 43.12000) LONGITUDE: 124° 24.8' W (-124.41300)
The bench mark is a disk set on a 1.07 m (3.5 ft) long pipe located 0.6 km (0.4
mi) NE along Riverside Drive from the Ferry Creek bridge, 17.04 m (55.9 ft) NW
of the northernmost corner of the residence at 488 Riverside Drive, 5.49 m (18.0
ft) east of the centerline of Riverside Drive, 3.99 m (13.1 ft) west of a SW
corner fence post, 0.73 m (2.4 ft) SE of a street light pole, and 0.03 m (0.1
ft) below grade.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 5
Station ID: 9432373 PUBLICATION DATE: 07/08/2003
Name: BANDON, COQUILLE RIVER
OR
NOAA Chart: 18588 Latitude: 43° 7.2' N ( 43.12000)
USGS Quad: BANDON Longitude: 124° 24.8' W (-124.41300)
T I D A L D A T U M S
Tidal datums at BANDON, COQUILLE RIVER based on:
LENGTH OF SERIES: 3 MONTHS
TIME PERIOD: August 1977 - October 1977
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION: 9419750 CRESCENT CITY, PACIFIC OCEAN
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
MEAN HIGHER HIGH WATER MHHW = 2.162
MEAN HIGH WATER MHW = 1.943
MEAN TIDE LEVEL MTL = 1.153
MEAN SEA LEVEL MSL = 1.144
MEAN LOW WATER MLW = 0.363
North American Vertical Datum NAVD88 = 0.032
MEAN LOWER LOW WATER MLLW = 0.000
North American Vertical Datum (NAVD88)
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
5 1922 6.271 4.328
2 1922 4.151 2.208
6 1933 4.084 2.141
2373 D 1977 5.763 3.820
2373 E 1977 4.694 2.751
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 5
Station ID: 9432373 PUBLICATION DATE: 07/08/2003
Name: BANDON, COQUILLE RIVER
OR
NOAA Chart: 18588 Latitude: 43° 7.2' N ( 43.12000)
USGS Quad: BANDON Longitude: 124° 24.8' W (-124.41300)
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.