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Bench Mark Sheet for 9464212, Village Cove, St Paul Island AK

Superseded Epoch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Small blue map location marker Unpublished bench mark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  8

                                                                                
Station ID: 9464212                         PUBLICATION DATE:  12/12/2011
Name:       VILLAGE COVE, ST. PAUL ISLAND                     
            AK
NOAA Chart: 16382                           Latitude:   57°  7.5' N (  57.12531)
USGS Quad:  PRIBILOF ISLANDS (C-4)          Longitude: 170° 17.1' W (-170.28517)


To reach the tidal bench marks from the U.S. Post Office in Village Cove,
proceed 0.2 km (0.1 mi) south to a stop sign, then 0.3 km (0.2 mi) west to the
AC Store, then 0.2 km (0.1 mi) NNW to the dry dock, then 0.3 km (0.2 mi) NW to
the City dock.  The bench marks are located along the road from the AC Store to
the City dock.  The tide gauge are located in the City fuel shed on the southern
end of the City dock.


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


                 PRIMARY BENCH MARK STAMPING:  RBD 1 1994
                         DESIGNATION:          946 4212 RBD 1

MONUMENTATION:           Survey disk                           VM#:        16795
AGENCY:                  US Army Corps of Engineers (USE)      IDB PID#:        
SETTING CLASSIFICATION:  Boulder                               OPUS PID:        
LATITUDE:   57°  7.4' N (  57.12386)          LONGITUDE: 170° 17.1' W (-170.28472)


The primary bench mark is set flush in a 2 m x 1 m x 1 m (6 ft x 4 ft x 4 ft)
high boulder, 46.00 m (150.9 ft) SW of the centerline of the elbow in the road,
20.80 m (68.2 ft) south of the SW corner of a 3.1 m x 3.1 m (10.2 ft x 10.2 ft)
concrete pad, 5.00 m (16.4 ft) SW of the east edge of the rip rap, and 3.00 m
(9.8 ft) WNW of the edge of the bluff.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  2 of  8

                                                                                
Station ID: 9464212                         PUBLICATION DATE:  12/12/2011
Name:       VILLAGE COVE, ST. PAUL ISLAND                     
            AK
NOAA Chart: 16382                           Latitude:   57°  7.5' N (  57.12531)
USGS Quad:  PRIBILOF ISLANDS (C-4)          Longitude: 170° 17.1' W (-170.28517)


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


                         BENCH MARK STAMPING:  NO 4 1946
                         DESIGNATION:          946 4212 TIDAL 4

MONUMENTATION:           Tidal Station disk                    VM#:         9653
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:        
SETTING CLASSIFICATION:  Concrete foundation                   OPUS PID:        
LATITUDE:   57°  7.3' N (  57.12161)          LONGITUDE: 170° 16.8' W (-170.28056)


The bench mark is set vertically in the north side of a concrete foundation of a
one-story blue and white building, 30.50 m (100.1 ft) SW of the SW corner of the
AC Store, 14.33 m (47.0 ft) SE from the center of a fire hydrant, 7.10 m (23.3
ft) SE from the center of a manhole cover, 7.00 m (23.0 ft) west from the
centerline of the road, 0.62 m (2.0 ft) west of the east wall of the building,
and 0.42 m (1.4 ft) above the ground.



                         BENCH MARK STAMPING:  NO 3 1946
                         DESIGNATION:          946 4212 TIDAL 3

MONUMENTATION:           Tidal Station disk                    VM#:        16791
AGENCY:                  US Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:        
SETTING CLASSIFICATION:  Concrete step                         OPUS PID:        
LATITUDE:   57°  7.4' N (  57.12300)          LONGITUDE: 170° 16.9' W (-170.28150)


The bench mark is set flush in the north corner of a 0.6 m x 0.6 m x 0.8 m (1.9
ft x 1.9 ft x 2.6 ft) triangular shaped lower concrete step in front of the
doorway of the Machine Shop, 19.81 m (65.0 ft) north of the SE corner of the
Machine Shop, 15.35 m (50.4 ft) west of a fire hydrant, 0.56 m (1.8 ft) ENE of
the SE side of the door jam, 0.15 m (0.5 ft) below the door to the Machine Shop,
and 0.03 m (0.1 ft) above ground.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  3 of  8

                                                                                
Station ID: 9464212                         PUBLICATION DATE:  12/12/2011
Name:       VILLAGE COVE, ST. PAUL ISLAND                     
            AK
NOAA Chart: 16382                           Latitude:   57°  7.5' N (  57.12531)
USGS Quad:  PRIBILOF ISLANDS (C-4)          Longitude: 170° 17.1' W (-170.28517)


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


                         BENCH MARK STAMPING:  4212 N 2002
                         DESIGNATION:          946 4212 N

MONUMENTATION:           Tidal Station disk                    VM#:        16792
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Concrete dock                         OPUS PID:        
LATITUDE:   57°  7.5' N (  57.12531)          LONGITUDE: 170° 17.1' W (-170.28514)


The bench mark is set flush in the SE corner of the city fuel dock, 13.10 m
(43.0 ft) SE of the center of a concrete well 1 m (3 ft) high and 1.10 m (3.5
ft) in diameter, 12.05 m (39.5 ft) east of a light pole, 9.51 m (31.2 ft) east
of the SE corner of the city tool shed, 8.07 m (26.5 ft) south of a 1.20 m (4.0
ft) high bollard which measures 0.17 m (0.55 ft) in diameter, 3.05 m (10.0 ft)
east of the southeasterly-most fuel valve, 1.40 m (4.6 ft) east of the east side
of a dock ladder, 1.31 m (4.3 ft) west of the east face of the dock, 0.67 m (2.2
ft) north of the south face of the dock, and 0.27 m (0.9 ft) south of the south
edge of a 2.44 m (8.0 ft) concrete catch basin.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  4 of  8

                                                                                
Station ID: 9464212                         PUBLICATION DATE:  12/12/2011
Name:       VILLAGE COVE, ST. PAUL ISLAND                     
            AK
NOAA Chart: 16382                           Latitude:   57°  7.5' N (  57.12531)
USGS Quad:  PRIBILOF ISLANDS (C-4)          Longitude: 170° 17.1' W (-170.28517)


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


                         BENCH MARK STAMPING:  4212 P 2002
                         DESIGNATION:          946 4212 P

MONUMENTATION:           Tidal Station disk                    VM#:        16793
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Concrete pad                          OPUS PID#: BBBH46
LATITUDE:   57°  7.5' N (  57.12567)          LONGITUDE: 170° 17.1' W (-170.28572)


The bench mark is set flush in a concrete pad on the city fuel dock, 21.25 m
(69.7 ft) NNE of the NE corner of a shed attached to the Harbor Master's Office,
21.25 m (69.7 ft) WSW from the center of the northern-most bollard on the east
edge of the dock, 8.70 m (28.5 ft) west of a lightpole on the north edge of the
dock, 1.90 m (6.2 ft) east of the center of three holes on top of the metal
anchor for ship lines, 1.80 m (5.9 ft) south of the NE corner of the concrete
pad, and 0.34 m (1.1 ft) west of the east edge of the concrete pad.



                         BENCH MARK STAMPING:  TERRA SURVEYS SP-3 USACE 2001
                         DESIGNATION:          946 4212 TERRA SP3

MONUMENTATION:           Survey disk                           VM#:        16794
AGENCY:                  US Army Corp of Engineers (USACE)     IDB PID#:        
SETTING CLASSIFICATION:  Concrete block                        OPUS PID#: BBCN02
LATITUDE:   57°  7.5' N (  57.12422)          LONGITUDE: 170° 16.9' W (-170.28139)


The bench mark is set flush in a concrete block 3.07 m x 2.77 m x 0.98 m high
(10.1 ft x 9.1 ft x 3.2 ft) the length of which bears northerly, 34.44 m (113.0
ft) ESE of the SE corner of a concrete pier, 14.63 m (48.0 ft) south of the top
of the breakwater, 1.78 m (5.8 ft) north of the south edge of the block, and
1.25 m (4.1 ft) west of the east edge of the block.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  5 of  8

                                                                                
Station ID: 9464212                         PUBLICATION DATE:  12/12/2011
Name:       VILLAGE COVE, ST. PAUL ISLAND                     
            AK
NOAA Chart: 16382                           Latitude:   57°  7.5' N (  57.12531)
USGS Quad:  PRIBILOF ISLANDS (C-4)          Longitude: 170° 17.1' W (-170.28517)


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


                         BENCH MARK STAMPING:  4212 Q 2008
                         DESIGNATION:          946 4212 Q

MONUMENTATION:           Tidal Station disk                    VM#:        18989
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Bedrock                               OPUS PID:        
LATITUDE:   57°  7.4' N (  57.12361)          LONGITUDE: 170° 17.1' W (-170.28419)


The bench mark is set flush in a bedrock outcrop midway up the bluff south of
the Trident Seafood building and below the fuel tanks, 16.25 m (53.3 ft) south
up the slope from the SE corner of a small shed at the base of the bluff, 16.02
m (52.6 ft) NNE on the slope down from the top of the bluff, 11.21 m (36.8 ft)
west from the highest point of a prominent rock pile slightly higher than the
bench mark, and 2.19 m (7.2 ft) east from a 1/2 inch metal pipe and a 1 1/2 inch
PVC conduit running from the top of the bluff down to the shed at the base of
the bluff.



                         BENCH MARK STAMPING:  4212 R 2008
                         DESIGNATION:          946 4212 R

MONUMENTATION:           Tidal Station disk                    VM#:        18990
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Bedrock                               OPUS PID:        
LATITUDE:   57°  7.4' N (  57.12344)          LONGITUDE: 170° 17.0' W (-170.28308)


The bench mark is set flush in a bedrock outcrop midway up the bluff south of
the Trident Seafood building and below the fuel tanks, 28.70 m (94.16 ft) east
from the center of a 0.16 m diameter gas pipeline from the Delta Western fuel
tanks running downhill to the truck filling station, 10.59 m (34.7 ft) up the
slope SSW from the top of a fire hydrant, 7.30 m (24.0 ft) up the slope south
from the center of a vertical 0.60 m (2.0 ft) diameter corrugated culvert pipe,
and 0.74 m (2.4 ft) above the surrounding slope.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  6 of  8

                                                                                
Station ID: 9464212                         PUBLICATION DATE:  12/12/2011
Name:       VILLAGE COVE, ST. PAUL ISLAND                     
            AK
NOAA Chart: 16382                           Latitude:   57°  7.5' N (  57.12531)
USGS Quad:  PRIBILOF ISLANDS (C-4)          Longitude: 170° 17.1' W (-170.28517)


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


                         BENCH MARK STAMPING:  4212 S 2008
                         DESIGNATION:          946 4212 S

MONUMENTATION:           Tidal Station disk                    VM#:        18991
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Bedrock                               OPUS PID:        
LATITUDE:   57°  7.4' N (  57.12281)          LONGITUDE: 170° 16.9' W (-170.28139)


The bench mark is set flush in a bedrock outcrop west of a gravel driveway
leading to the south side of the Machine Shop, 24.11 m (79.1 ft) NW of a 0.10 m
(0.3 ft) square by 0.83 m (2.7 ft) high metal monitoring well box, 18.01 m (59.1
ft) SSE from the west side of the double door on the south side of the Machine
Shop, 17.88 m (58.7 ft) SW from the SW corner of a gray 2.0 m (6 ft) tall
electrical junction box, and 1.00 m (3.3 ft) above the gravel driveway.



                         BENCH MARK STAMPING:  4212 T 2008
                         DESIGNATION:          946 4212 T

MONUMENTATION:           Tidal Station disk                    VM#:        18992
AGENCY:                  National Ocean Service (NOS)          IDB PID#:        
SETTING CLASSIFICATION:  Concrete pad                          OPUS PID:        
LATITUDE:   57°  7.6' N (  57.12728)          LONGITUDE: 170° 17.2' W (-170.28683)


The bench mark is set flush in a concrete pad on the northern most pier in the
harbor, 33.15 m (108.8 ft) SSW from the NE corner of the gravel fill pier, 30.35
m (99.6 ft) NE from the base of the rip rap sea wall across the road, 21.52 m
(70.6 ft) west from the bollard at the SE corner of the pier, 9.36 m (30.7 ft)
WSW from the west side of mounted yellow case containing a life ring, 4.95 m
(16.2 ft) from the center of a 0.5 m (2 ft) high valve, and 0.31 m (1.0 ft) west
of the east edge of the concrete pad.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  7 of  8

                                                                                
Station ID: 9464212                         PUBLICATION DATE:  12/12/2011
Name:       VILLAGE COVE, ST. PAUL ISLAND                     
            AK
NOAA Chart: 16382                           Latitude:   57°  7.5' N (  57.12531)
USGS Quad:  PRIBILOF ISLANDS (C-4)          Longitude: 170° 17.1' W (-170.28517)


                            T I D A L   D A T U M S 


Tidal datums at VILLAGE COVE, ST. PAUL ISLAND based on:

     LENGTH OF SERIES:      4 YEARS
     TIME PERIOD:           March 2007 - Feb. 2010 and Oct. 2010 - Sept. 2011
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:   


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

     HIGHEST OBSERVED WATER LEVEL (12/08/2006)         =  1.604
     MEAN HIGHER HIGH WATER                     MHHW   =  1.005
     MEAN HIGH WATER                            MHW    =  0.938
     MEAN TIDE LEVEL                            MTL    =  0.618
     MEAN SEA LEVEL                             MSL    =  0.598
     MEAN LOW WATER                             MLW    =  0.297
     MEAN LOWER LOW WATER                       MLLW   =  0.000
     LOWEST  OBSERVED WATER LEVEL (12/06/2010)         = -0.640

North American Vertical Datum (NAVD88)

Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     RBD 1 1994                                  8.690    7.752
     NO 4 1946                                   9.896    8.958
     NO 3 1946                                   4.712    3.774
     4212 N 2002                                 3.290    2.352
     4212 P 2002                                 3.795    2.857
     TERRA SURVEYS SP-3 USACE 2001               4.692    3.754
     4212 Q 2008                                12.769   11.831
     4212 R 2008                                11.661   10.723
     4212 S 2008                                 9.002    8.064
     4212 T 2008                                 3.781    2.843


                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  8 of  8

                                                                                
Station ID: 9464212                         PUBLICATION DATE:  12/12/2011
Name:       VILLAGE COVE, ST. PAUL ISLAND                     
            AK
NOAA Chart: 16382                           Latitude:   57°  7.5' N (  57.12531)
USGS Quad:  PRIBILOF ISLANDS (C-4)          Longitude: 170° 17.1' W (-170.28517)


                             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 9464212 Village Cove, St Paul Island, AK

Revised: 10/15/2013
NOAA / National Ocean Service
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