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Bench Mark Sheet for 9434098, Florence USCG Pier, Suislaw River OR

Superseded Epoch

Large map location marker Station Location
Small red map location marker Published bench mark
Small blue map location marker Unpublished bench mark

Bench mark positions only appear on the map if their coordinates in the CO-OPS database are at the precision of degrees/minutes/seconds/and tenths of seconds. If the coordinates are less precise, the mark will not appear.

Printable version

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
Datums Page                                                        Page  1 of  5

                                                                                
Station ID: 9434098                         PUBLICATION DATE:  03/24/2014
Name:       FLORENCE USCG PIER, SUISLAW RIVER                 
            OR
NOAA Chart: 18583                           Latitude:   44°  0.1' N (  44.00211)
USGS Quad:  MERCER LAKE                     Longitude: 124°  7.4' W (-124.12300)


TO REACH THE STATION FROM THE INTERSECTION OF US HIGHWAY 101 AND OREGON STATE
HIGHWAY 126 (FLORENCE-EUGENE HIGHWAY) IN FLORENCE, PROCEED NORTH ON US HIGHWAY
101 FOR 2.6KM (1.6 MI) TO THE INTERSECTION OF 35TH STREET, TURN LEFT AND PROCEED
WEST ON 35TH STREET FOR 1.4 KM (0.9 MI) TO THE INTERSECTION OF RHODODENDRON
DRIVE, TURN RIGHT AND PROCEED NORTH FOR 0.3 KM (0.2 MI) TO THE INTERSECTION OF
COAST GUARD ROAD, TURN LEFT AND PROCEED 0.2 MI (0.3 KM) TO THE ENTRANCE TO THE
COAST GUARD FACILITY. THE TIDE STATION IS LOCATED ON THE COAST GUARD DOCK. FOUR
BENCHMARKS ARE LOCAED ON USCG PROPERTY AND ONE IS LOCATED JUST OUTSIDE THE
ENTRANCE GATE TO THE STATION ON COAST GUARD ROAD.


                         T I D A L   B E N C H   M A R K S


                 PRIMARY BENCH MARK STAMPING:  4098 A 2013
                         DESIGNATION:          943 4098 A

MONUMENTATION:           Flange-encased Rod                    VM#:        20769
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Flange-encased steel rod              OPUS PID#: BBDB74
LATITUDE:   44°  0.2' N (  44.00253)          LONGITUDE: 124°  7.4' W (-124.12267)


THE BENCH MARK IS FLANGE ENCASED ROD SET IN THE CENTER OF THE NORTHWEST YARD
AREA OF THE COAST GUARD STATION, IT IS 34.08 M (111.8 FT) SOUTHEAST OF THE
SOUTHWEST CORNER OF THE COAST GUARD BUILDING, 24.01 M (78.8 FT) WEST OF BENCH
MARK 943 4098 B, 18.89 M (62.0 FT) NORTH-NORTHWEST OF LARGE ANTENNA BY COAST
GUARD OFFICE BUILDING, 17.66 M (57.9 FT) WEST-NORTHWEST OF END OF A GREEN CHAIN
LINK FENCE ON THE NORTH PROPERTY LINE AND 10.54 M (34.6 FT) SOUTH-SOUTHWEST OF A
WITNESS POST. THE DATUM POINT IS SET 10 CM (4 INCHES) BELOW THE GRADE, BEING THE
TOP OF A STAINLESS STEEL ROD DRIVEN 20.7 M (68 FT) TO SUBSTANTIAL RESISTANCE IN
A SLEEVE EXTENDING TO 1.1 M (3.6 FT), AND ENCASED IN A 5-INCH NATIONAL GEODETIC
SURVEY LOGO COVER.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  2 of  5

                                                                                
Station ID: 9434098                         PUBLICATION DATE:  03/24/2014
Name:       FLORENCE USCG PIER, SUISLAW RIVER                 
            OR
NOAA Chart: 18583                           Latitude:   44°  0.1' N (  44.00211)
USGS Quad:  MERCER LAKE                     Longitude: 124°  7.4' W (-124.12300)


                         T I D A L   B E N C H   M A R K S


                         BENCH MARK STAMPING:  4098 B 2013
                         DESIGNATION:          943 4098 B

MONUMENTATION:           Tidal Station disk                    VM#:        20770
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Concrete mat                          OPUS PID:        
LATITUDE:   44°  0.2' N (  44.00256)          LONGITUDE: 124°  7.3' W (-124.12239)


THE BENCH MARK IS A DISK SET IN A CONCRETE MAT ON THE NORTH SIDE OF THE COAST
GUARD OFFICE BUILDING, 24.01 M (78.8 FT) EAST OF BENCH MARK 943 4098 A, 14.24 M
(46.7 FT) WEST-SOUTHWEST OF THE SOUTHEAST CORNER OF AN ELECTRICAL OUTBUILDING,
9.15 M (30.0 FT) WEST-NORTHWEST OF THE NORTHEAST CORNER OF COAST GUARD OFFICE
BUILDING, 7.27 M (23.9 FT) SOUTH-SOUTHWEST OF A PROPERTY FENCE, 0.28 M (0.9 FT)
SOUTHEAST OF THE NORTHWEST CORNER OF THE CONCRETE MAT AND ABOUT 0.20 M (0.7 FT)
ABOVE THE GROUND.



                         BENCH MARK STAMPING:  4098 C 2013
                         DESIGNATION:          943 4098 C

MONUMENTATION:           Tidal Station disk                    VM#:        20771
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Concrete pad                          OPUS PID:        
LATITUDE:   44°  0.1' N (  44.00211)          LONGITUDE: 124°  7.3' W (-124.12189)


THE BENCH MARK IS A DISK SET IN A CONCRETE MAT CONTAINING A LARGE GENERATOR,
26.05 M (85.5 FT) EAST OF THE CENTER OF THE YELLOW STEPS IN THE FUEL TANK FARM,
15.94 M (52.3 FT) NORTH-NORTHEAST OF A UTILITY POLE JUST PASS THE COAST GUARD
ENTRANCE, 10.19 M (33.4 FT) EAST OF A METAL LIGHT POLE, 7.99 M (26.2 FT)
SOUTHEAST OF THE SOUTHWEST CORNER OF THE COAST GUARD SHOP, 0.54 M (1.8 FT)
SOUTHWEST OF A GENERATOR CORNER AND ABOUT 0.13 M (0.4 FT) ABOVE THE GROUND.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  3 of  5

                                                                                
Station ID: 9434098                         PUBLICATION DATE:  03/24/2014
Name:       FLORENCE USCG PIER, SUISLAW RIVER                 
            OR
NOAA Chart: 18583                           Latitude:   44°  0.1' N (  44.00211)
USGS Quad:  MERCER LAKE                     Longitude: 124°  7.4' W (-124.12300)


                         T I D A L   B E N C H   M A R K S


                         BENCH MARK STAMPING:  4098 D 2013
                         DESIGNATION:          943 4098 D

MONUMENTATION:           Tidal Station disk                    VM#:        20772
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Concrete slab                         OPUS PID:        
LATITUDE:   44°  0.1' N (  44.00142)          LONGITUDE: 124°  7.3' W (-124.12150)


THE BENCH MARK IS A DISK SET IN A CONCRETE MAT OUTSIDE THE COAST GUARD STATION
ON COAST GUARD ROAD, 63.84 M (209.4 FT) SOUTHEAST OF THE CENTER OF THE ROAD AT
THE COAST GUARD ENTRANCE GATE, 22.28 M (73.1 FT) NORTH-NORTHEAST OF THE
INTERSECTION OF COAST GUARD ROAD AND SEA WATCH PLACE, 16.61 M (54.5 FT)
NORTHWEST OF A UTILITY POLE NUMBERED V15N27, 5.57 M (18.3 FT) NORTHEAST OF THE
CENTER LINE OF COAST GUARD ROAD AND 2.26 M (7.4 FT) WEST-SOUTHWEST OF A RED
LIGHT ON A GREEN UTILITY BOX.



                         BENCH MARK STAMPING:  4098 E 2013
                         DESIGNATION:          943 4098 E

MONUMENTATION:           Tidal Station disk                    VM#:        20773
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Concrete steps                        OPUS PID:        
LATITUDE:   44°  0.1' N (  44.00228)          LONGITUDE: 124°  7.4' W (-124.12250)


THE BENCH MARK IS A DISK SET IN A CONCRETE STEP, 27.07 M (88.8 FT)
NORTH-NORTHWEST OF A METAL LAMPPOST LEADING TO THE COAST GUARD DOCK, 25.99 M
(85.3 FT) NORTHWEST OF NORTHWEST CONCRETE CORNER OF TANK FARM FOUNDATION, 8.81 M
(28.9 FT) SOUTHEAST OF THE SOUTHWEST CORNER OF COAST GUARD OFFICE BUILDING, 4.99
M (16.4 FT) NORTHWEST OF THE COAST GUARD DOCK ACCESS ROAD, 1.35 M (4.4 FT)
NORTH-NORTHWEST OF THE METAL SUPPORT FOR THE RAILING OF THE STAIRS AND ABOUT
0.17 M (0.6 FT) ABOVE THE GROUND.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  4 of  5

                                                                                
Station ID: 9434098                         PUBLICATION DATE:  03/24/2014
Name:       FLORENCE USCG PIER, SUISLAW RIVER                 
            OR
NOAA Chart: 18583                           Latitude:   44°  0.1' N (  44.00211)
USGS Quad:  MERCER LAKE                     Longitude: 124°  7.4' W (-124.12300)


                            T I D A L   D A T U M S 


Tidal datums at FLORENCE USCG PIER, SUISLAW RIVER based on:

     LENGTH OF SERIES:      4 MONTHS
     TIME PERIOD:           June 2013 - September 2013
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  9432780 CHARLESTON, COOS BAY


Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:

     MEAN HIGHER HIGH WATER                     MHHW   =  2.258
     MEAN HIGH WATER                            MHW    =  2.063
     MEAN TIDE LEVEL                            MTL    =  1.221
     MEAN SEA LEVEL                             MSL    =  1.219
     MEAN LOW WATER                             MLW    =  0.379
     MEAN LOWER LOW WATER                       MLLW   =  0.000

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     4098 A 2013                                13.843   11.780
     4098 B 2013                                16.720   14.657
     4098 C 2013                                16.234   14.171
     4098 D 2013                                16.426   14.363
     4098 E 2013                                11.116    9.053


                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  5 of  5

                                                                                
Station ID: 9434098                         PUBLICATION DATE:  03/24/2014
Name:       FLORENCE USCG PIER, SUISLAW RIVER                 
            OR
NOAA Chart: 18583                           Latitude:   44°  0.1' N (  44.00211)
USGS Quad:  MERCER LAKE                     Longitude: 124°  7.4' W (-124.12300)


                             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.

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Products available at 9434098 Florence USCG Pier, Suislaw River, OR

Revised: 08/08/2018
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