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/.