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Bench Mark Sheet for 1614465, KAUMALAPAU HARBOR, LANAI ISLAND HI

Superseded Epoch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Small blue map location marker Unpublished bench mark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  4

                                                                                
Station ID: 1614465                         PUBLICATION DATE:  06/11/2018
Name:       KAUMALAPAU HARBOR, LANAI ISLAND                   
            HI
NOAA Chart: 19351                           Latitude:   20° 47.4' N (  20.79000)
USGS Quad:  LANAI SOUTH OE W                Longitude: 156° 59.7' W (-156.99500)


To reach the tidal bench marks from Lania City,  Route 44 and Lania Airport,
proceed west at the intersection of Route 44 and Lania Airport access road from
5.3 km (3.3 mi) to the end of the highway.  The bench marks are located in the
area of the harbor parking area.  


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


                 PRIMARY BENCH MARK STAMPING:   
                         DESIGNATION:          161 4465 UH1

MONUMENTATION:           Bench Mark disk                       VM#:        22589
AGENCY:                  Unknown                               IDB PID#:        
SETTING CLASSIFICATION:  See descriptive text                  OPUS PID:        
LATITUDE:   20° 47.2' N (  20.78697)          LONGITUDE: 156° 59.4' W (-156.99083)


The primary bench mark is a disk.



                         BENCH MARK STAMPING:  NO 2 1927
                         DESIGNATION:          161 4465 TIDAL 2

MONUMENTATION:           Bench Mark disk                       VM#:        22588
AGENCY:                  U.S. Coast and Geodetic Survey
                         (USC&GS)                              IDB PID#:        
SETTING CLASSIFICATION:  Seawall                               OPUS PID:        
LATITUDE:   20° 47.2' N (  20.78697)          LONGITUDE: 156° 59.4' W (-156.99083)


The bench mark is a disk set in a seawall located in the NE corner (inshore end)
of the concrete wharf, 10.70 m (35 ft) seaward of the rock bluff.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  2 of  4

                                                                                
Station ID: 1614465                         PUBLICATION DATE:  06/11/2018
Name:       KAUMALAPAU HARBOR, LANAI ISLAND                   
            HI
NOAA Chart: 19351                           Latitude:   20° 47.4' N (  20.79000)
USGS Quad:  LANAI SOUTH OE W                Longitude: 156° 59.7' W (-156.99500)


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


                         BENCH MARK STAMPING:   
                         DESIGNATION:          1614465 UH2

MONUMENTATION:           Bench Mark disk                       VM#:        22590
AGENCY:                  Unknown                               IDB PID#:        
SETTING CLASSIFICATION:  See descriptive text                  OPUS PID:        
LATITUDE:   20° 47.2' N (  20.78697)          LONGITUDE: 156° 59.4' W (-156.99083)


The bench mark is a disk set at the base of the large concrete stop for vehicles
located near the top of the stairs, 0.46 m (1.5 ft) from the end of the north
rail track on the dock.



                         BENCH MARK STAMPING:   
                         DESIGNATION:          161 4465 UH3

MONUMENTATION:           Bench Mark disk                       VM#:        22591
AGENCY:                                                        IDB PID#:        
SETTING CLASSIFICATION:  Concrete steps                        OPUS PID:        
LATITUDE:   20° 47.2' N (  20.78697)          LONGITUDE: 156° 59.4' W (-156.99083)


The bench mark is a disk set at the bottom of the staris that lead up to the
main office, trailer, and lunch area.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  3 of  4

                                                                                
Station ID: 1614465                         PUBLICATION DATE:  06/11/2018
Name:       KAUMALAPAU HARBOR, LANAI ISLAND                   
            HI
NOAA Chart: 19351                           Latitude:   20° 47.4' N (  20.79000)
USGS Quad:  LANAI SOUTH OE W                Longitude: 156° 59.7' W (-156.99500)


                            T I D A L   D A T U M S 


Tidal datums at KAUMALAPAU HARBOR, LANAI ISLAND based on:

     LENGTH OF SERIES:      1 YEAR
     TIME PERIOD:           January 2011 - December 2011
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  1617433 KAWAIHAE, HAWAII ISLAND


Elevations of tidal datums referred to Mean Sea Level (MSL), in METERS:

     MEAN SEA LEVEL                             MSL    =  0.000



Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                                MSL

     161 4465 UH1                                         1.204
     NO 2 1927                                            3.478
     1614465 UH2                                          2.868
     161 4465 UH3                                         3.688


Foot Notes:

Data from this station was collected using methodology that does not meet CO-OPS
highest level of accuracy (no more than 10 cm, 95% Confidence Interval (CI)
referenced to a tidal datum). Recognizing that lower quality data can be used
for certain applications CO-OPS is making this data available to its users with
restraint. The average six-minute water level observations derived from this
system have an accuracy ranging from 10.0 - 30.0 cm, 95% CI on datum. Users are
cautioned to consider the accuracy of these data before using them for critical
navigational or coastal engineering purposes.

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

                                                                                
Station ID: 1614465                         PUBLICATION DATE:  06/11/2018
Name:       KAUMALAPAU HARBOR, LANAI ISLAND                   
            HI
NOAA Chart: 19351                           Latitude:   20° 47.4' N (  20.79000)
USGS Quad:  LANAI SOUTH OE W                Longitude: 156° 59.7' W (-156.99500)


                             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 any other fixed island datum.

This tide station location has a local island datum.  Island datums
are specific fixed geodetic datums whose elevation relationship 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/.

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Products available at 1614465 KAUMALAPAU HARBOR, LANAI ISLAND, HI

Revised: 08/08/2018
NOAA / National Ocean Service
Web site owner: Center for Operational Oceanographic Products and Services