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Bench Mark Sheet for 1612702, LAIEMALOO, OAHU 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Superseded Epoch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Small blue map location marker Unpublished bench mark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  6

                                                                                
Station ID: 1612702                         PUBLICATION DATE:  08/24/2010
Name:       LAIEMALOO, OAHU ISLAND                            
            HI
NOAA Chart: 19357                           Latitude:   21° 38.2' N (  21.63670)
USGS Quad:  KAHUKU                          Longitude: 157° 55.3' W (-157.92200)


To reach the tidal bench marks, go 1.8 km (1.1 mi) NW from Hauula or  1.8 km
(1.1 mi) NW along State Highway 83 from the Post Office at Hauula. The bench
marks are located in the vicinity of the highway, 5.88 m (19.3 ft) west of the
center line of the highway and 18.38 m (60.3 ft) NW and across the highway from
Mail Box No. 55-241. 


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


                 PRIMARY BENCH MARK STAMPING:  LIEA 1 1933
                         DESIGNATION:          161 2702 BM 1

MONUMENTATION:           Tidal Station disk                    VM#:        19642
AGENCY:                  National Geodetic Survey (NGS)        IDB PID#:        
SETTING CLASSIFICATION:  Concrete post                         OPUS PID:        
LATITUDE:   21° 38.2' N (  21.63670)          LONGITUDE: 157° 55.3' W (-157.92200)


The primary bench mark is set in an 11 inch square concrete post  located in
well kept lawn, 29.26 m (96 ft) north of the residence, 14 m (46 ft) south of
the guest house, and 0.15 m(0.5 ft) above ground.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  2 of  6

                                                                                
Station ID: 1612702                         PUBLICATION DATE:  08/24/2010
Name:       LAIEMALOO, OAHU ISLAND                            
            HI
NOAA Chart: 19357                           Latitude:   21° 38.2' N (  21.63670)
USGS Quad:  KAHUKU                          Longitude: 157° 55.3' W (-157.92200)


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


                         BENCH MARK STAMPING:  LIEA 2 1933
                         DESIGNATION:          LIEA 2

MONUMENTATION:           Tidal Station disk                    VM#:        19643
AGENCY:                  National Geodetic Survey (NGS)        IDB PID#:  TU0495
SETTING CLASSIFICATION:  Concrete abutment of bridge           OPUS PID:        
LATITUDE:   21° 38.0' N (  21.63250)          LONGITUDE: 157° 55.2' W (-157.92083)


The bench mark is a set in the top of the east end of the north concrete
abutment of a bridge over Laiemaloo stream, 1.8 km (1.1 mi) NW along State
Highway 83 from the Post Office at Hauula, 11.67 m (38.3 ft) east and across the
highway from Power Pole 58T, 4.82 m (15.8 ft) east of the center line of the
highway, and 0.15 m (0.5 ft) below the highway.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  3 of  6

                                                                                
Station ID: 1612702                         PUBLICATION DATE:  08/24/2010
Name:       LAIEMALOO, OAHU ISLAND                            
            HI
NOAA Chart: 19357                           Latitude:   21° 38.2' N (  21.63670)
USGS Quad:  KAHUKU                          Longitude: 157° 55.3' W (-157.92200)


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


                         BENCH MARK STAMPING:  LIEA 3 1969
                         DESIGNATION:          LIEA 3
                         ALIAS:                LIEA 3 1933

MONUMENTATION:           Tidal Station disk                    VM#:        19644
AGENCY:                  National Geodetic Survey (NGS)        IDB PID#:  TU0494
SETTING CLASSIFICATION:  Top of lava rock ledge                OPUS PID:        
LATITUDE:   21° 37.8' N (  21.63028)          LONGITUDE: 157° 55.3' W (-157.92111)


The bench mark is set in the top of a lava rock ledge 1.45 km (0.9 mi) NW along
State Highway 83 from the Post Office at Hauula, 82.30 m (270 ft) east across
the south side of a lawn from the highway, 1.83 m (6 ft) NE of the center of a
foot trail leading to the top of the outcrop, 1.82 m (6.0 ft) south of the north
edge of the ledge, 0.91 m (3.0 ft) north of the north face of the main outcrop,
2.74 m (9 ft) sout from the north face of a lava rock outcrop, and 0.91 m (3.0
ft) higher than a sandy beach.



                         BENCH MARK STAMPING:  No 4 1970
                         DESIGNATION:          161 2702 TIDAL 4

MONUMENTATION:           Tidal Station disk                    VM#:        19645
AGENCY:                  National Geodetic Survey (NGS)        IDB PID#:        
SETTING CLASSIFICATION:  Top of lava rock ledge                OPUS PID:        
LATITUDE:   21° 38.2' N (  21.63670)          LONGITUDE: 157° 55.3' W (-157.92200)


The bench mark is set  flush on the north end of a 0.30 m (1 ft) high concrete
bridge abutment over a small ditch at the address of 55273 Kamehamela Highway,
5.03 m (16.5 ft) east of the centerline of the Kam Highway , 4.57 m (15.0 ft)
west of the Stone Gate Post, and 0.15 m (0.5 ft) south of the north end of
abutment.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  4 of  6

                                                                                
Station ID: 1612702                         PUBLICATION DATE:  08/24/2010
Name:       LAIEMALOO, OAHU ISLAND                            
            HI
NOAA Chart: 19357                           Latitude:   21° 38.2' N (  21.63670)
USGS Quad:  KAHUKU                          Longitude: 157° 55.3' W (-157.92200)


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


                         BENCH MARK STAMPING:  NO 5-6 1969
                         DESIGNATION:          161 2702 TIDAL 5-6

MONUMENTATION:           Survey disk                           VM#:        19646
AGENCY:                  HIGS                                  IDB PID#:  TU0496
SETTING CLASSIFICATION:  Concrete monument                     OPUS PID:        
LATITUDE:   21° 38.0' N (  21.63317)          LONGITUDE: 157° 55.3' W (-157.92128)


The bench mark is set in the top of a concrete post, 1.8 km (1.1 mi) NW along
State Highway 83 from the Post Office at Hauula, 34.87 m (114.4 ft) NNW and
across the highway from bench mark LIEA 2 1933, 29.05 m (95.3 ft) north of Power
Pole 58T,  27.07 m (88.8 ft) south of Power Pole 57T which is between two
graveled driveways,  18.38 m (60.3 ft) NW and across the highway from Mail Box
No. 55-241, 5.88 m (19.3 ft) west of the center line of the highway, and about
level with the highway.

                          U.S. DEPARTMENT OF COMMERCE
                National Oceanic and Atmospheric Administration
                            National Ocean Service
                                                                   Page  5 of  6

                                                                                
Station ID: 1612702                         PUBLICATION DATE:  08/24/2010
Name:       LAIEMALOO, OAHU ISLAND                            
            HI
NOAA Chart: 19357                           Latitude:   21° 38.2' N (  21.63670)
USGS Quad:  KAHUKU                          Longitude: 157° 55.3' W (-157.92200)


                            T I D A L   D A T U M S 


Tidal datums at LAIEMALOO, OAHU ISLAND based on:

     LENGTH OF SERIES:      1 MONTH
     TIME PERIOD:           November 1983 - November 1983
     TIDAL EPOCH:           1983-2001
     CONTROL TIDE STATION:  1612480 MOKUOLOE, KANEOHE BAY, OAHU ISLAND


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

     MEAN HIGHER HIGH WATER                     MHHW   =  0.700
     MEAN HIGH WATER                            MHW    =  0.574
     MEAN TIDE LEVEL                            MTL    =  0.338
     MEAN SEA LEVEL                             MSL    =  0.327
     MEAN LOW WATER                             MLW    =  0.102
     MEAN LOWER LOW WATER                       MLLW   =  0.000



Bench Mark Elevation Information                In METERS above:

     Stamping or Designation                    MLLW        MHW

     LIEA 1 1933                                 6.965    6.391
     LIEA 2 1933                                 3.342    2.768
     LIEA 3 1969                                 4.408    3.834
     No 4 1970                                   4.318    3.744
     NO 5-6 1969                                 3.986    3.412


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

                                                                                
Station ID: 1612702                         PUBLICATION DATE:  08/24/2010
Name:       LAIEMALOO, OAHU ISLAND                            
            HI
NOAA Chart: 19357                           Latitude:   21° 38.2' N (  21.63670)
USGS Quad:  KAHUKU                          Longitude: 157° 55.3' W (-157.92200)


                             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 1612702 LAIEMALOO, OAHU ISLAND, HI

Revised: 08/08/2018
NOAA / National Ocean Service
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