U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Datums Page Page 1 of 8
Station ID: 1615680 PUBLICATION DATE: 12/11/2017
Name: KAHULUI, KAHULUI HARBOR, MAUI ISLAND
HI
NOAA Chart: 19342 Latitude: 20° 53.7' N ( 20.89500)
USGS Quad: WAILUKU Longitude: 156° 28.6' W (-156.47669)
To reach the tidal bench marks, from the Kahului Airport proceed out the airport
exit, Keolani Place, 1.8 km (1.1 mi) until the intersection of Keolani Place,
Hana Highway (State Highway 36) and Kuihelani Avenue (Route 380) also known as
Dairy Road is reached. Turn SW onto Dairy Road and continue 1.6 km (1.0 mi) to
South Puunene Avenue (Route 350). Turn north onto South Puuene and proceed 1.6
km (1.0 mi) to Kaahumanu Avenue (State Highway 32). Turn east and proceed 0.2
km (0.1 mi) to North Wharf Street and turn north. Proceed 0.2 km (0.1 mi) to
the gate of Pier #2, enter the gate and proceed to the NW corner of Pier #2 and
the tide station.
T I D A L B E N C H M A R K S
PRIMARY BENCH MARK STAMPING: 5680 A 1983
DESIGNATION: 161 5680 A
MONUMENTATION: Tidal Station disk VM#: 1483
AGENCY: National Ocean Service (NOS) IDB PID#: DK4805
SETTING CLASSIFICATION: Stainless steel rod OPUS PID#: DK4805
LATITUDE: 20° 53.6' N ( 20.89344) LONGITUDE: 156° 28.0' W (-156.46664)
The primary bench mark is a disk set near the NE corner of Young Brothers
Warehouse building, 5.67 m (18.6 ft) SW of yellow fire hydrant, 2.90 m (9.5 ft)
SE of the NE corner of the Young Brothers Warehouse, 1.07 m (3.5 ft) east of the
warehouse wall, and 0.15 m (0.5 ft) east of an orange NOS witness post. The
bench mark is set 9 cm (0.3 ft) below ground, crimped to the top of a 9/16-inch
stainless steel rod driven to a depth of 14.6 m (48 ft), and protected by a
4-inch PVC plastic pipe with cover which is encased in cement.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 2 of 8
Station ID: 1615680 PUBLICATION DATE: 12/11/2017
Name: KAHULUI, KAHULUI HARBOR, MAUI ISLAND
HI
NOAA Chart: 19342 Latitude: 20° 53.7' N ( 20.89500)
USGS Quad: WAILUKU Longitude: 156° 28.6' W (-156.47669)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: NO 8 1966
DESIGNATION: 161 5680 TIDAL 8
MONUMENTATION: Tidal Station disk VM#: 54
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: TU0847
SETTING CLASSIFICATION: Concrete pier OPUS PID:
LATITUDE: 20° 53.7' N ( 20.89494) LONGITUDE: 156° 28.1' W (-156.46900)
The bench mark is a disk set in concrete on the inside corner of an L-shaped
extension on the NW corner of Pier 2 for the Port of Kahului, 16.76 m (55.0 ft)
east from the extreme NW corner of the pier, 13.11 m (43.0 ft) SE of the NW face
of Pier 2, 6.55 m (21.5ft) NE of the north corner of the tide house, 3.35 m
(11.0 ft) NE of waters edge, and 0.91 m (3.0 ft) east from the extreme SW corner
of the pier.
BENCH MARK STAMPING: NO 9 1966
DESIGNATION: 161 5680 TIDAL 9
MONUMENTATION: Tidal Station disk VM#: 55
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: TU0845
SETTING CLASSIFICATION: Concrete pier OPUS PID:
LATITUDE: 20° 53.7' N ( 20.89486) LONGITUDE: 156° 28.1' W (-156.46875)
The bench mark is a disk set in concrete on Pier 2 for the Port of Kahalui in
the base of the first light pole SE of the NW end of Pier 2, 41.15 m (135.0 ft)
SE of the NW face of the pier, 28.35 m (93.0 ft) SE of bench mark NO 8 1966,
3.66 m (12.0 ft) NE of waters edge, and 2.29 m (7.5 ft) NW of the SW face of the
pier. Note: Light pole missing from base.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 3 of 8
Station ID: 1615680 PUBLICATION DATE: 12/11/2017
Name: KAHULUI, KAHULUI HARBOR, MAUI ISLAND
HI
NOAA Chart: 19342 Latitude: 20° 53.7' N ( 20.89500)
USGS Quad: WAILUKU Longitude: 156° 28.6' W (-156.47669)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: NO 11 1971
DESIGNATION: 161 5680 TIDAL 11
MONUMENTATION: Tidal Station disk VM#: 57
AGENCY: US Coast and Geodetic Survey
(USC&GS) IDB PID#: TU0850
SETTING CLASSIFICATION: Concrete sidewalk OPUS PID:
LATITUDE: 20° 53.5' N ( 20.89125) LONGITUDE: 156° 28.0' W (-156.46683)
The bench mark is a disk set in concrete sidewalk near the NW corner of Checker
Auto Parts located east of the Bank of Hawaii on the corner of Kaahumanu Avenue
and Punnene Street in Kahalui, 62.18 m (204.0 ft) east of the centerline of
Punnene Street, about 10.7 m (35 ft)south of the centerline of Kaahumanu Ave.,
0.76 m (2.5 ft) east of the NW corner of building, and 0.15 m (0.5 ft) north of
the north wall.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 4 of 8
Station ID: 1615680 PUBLICATION DATE: 12/11/2017
Name: KAHULUI, KAHULUI HARBOR, MAUI ISLAND
HI
NOAA Chart: 19342 Latitude: 20° 53.7' N ( 20.89500)
USGS Quad: WAILUKU Longitude: 156° 28.6' W (-156.47669)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: TIDAL BM 13 1975
DESIGNATION: 161 5680 13
ALIAS: BM 13 1975
MONUMENTATION: Tidal Station disk VM#: 58
AGENCY: National Ocean Survey (NOS) IDB PID#:
SETTING CLASSIFICATION: Concrete walkway platform OPUS PID:
LATITUDE: 20° 53.7' N ( 20.89486) LONGITUDE: 156° 28.1' W (-156.46875)
The bench mark is a disk set in the concrete walkway platform fronting the U.S.
Post Office on Puunene Street, 6 m (20 ft) SE of the northerly corner of the
Post Office Building, 0.15 m (0.5 ft) NE of the NE wall of the post office, and
is about 0.46 m (1.5 ft) above ground level.
BENCH MARK STAMPING: E 22 1979
DESIGNATION: 161 5680 E 22
ALIAS: 161 5680 TIDAL
MONUMENTATION: Bench Mark disk VM#: 59
AGENCY: National Geodetic Survey (NGS) IDB PID#: TU0846
SETTING CLASSIFICATION: Concrete pier deck OPUS PID:
LATITUDE: 20° 53.7' N ( 20.89500) LONGITUDE: 156° 28.1' W (-156.46900)
The bench mark is a disk set on the inside corner of a L-shaped extension on the
NW corner of Pier 2 for the Port of Kahalui, 28.16 m (92.4 ft) NW of bench mark
NO 9 1966, 12.98 m (42.6 ft) SE of the NW edge of pier, 7.86 m (25.8 ft) NE of
the north corner of the tide house, 1.37 m (4.5 ft) north of bench mark NO 8
1966, 0.15 m (0.5 ft) SW of the NE end of a 1 m (2 ft) high concrete guard beam,
and 0.12 m (0.4 ft) SE of a concrete guard beam.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 5 of 8
Station ID: 1615680 PUBLICATION DATE: 12/11/2017
Name: KAHULUI, KAHULUI HARBOR, MAUI ISLAND
HI
NOAA Chart: 19342 Latitude: 20° 53.7' N ( 20.89500)
USGS Quad: WAILUKU Longitude: 156° 28.6' W (-156.47669)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 5680 B 1983
DESIGNATION: 161 5680 B
MONUMENTATION: Tidal Station disk VM#: 1484
AGENCY: National Ocean Service (NOS) IDB PID#:
SETTING CLASSIFICATION: Stainless steel rod OPUS PID:
LATITUDE: 20° 53.5' N ( 20.89175) LONGITUDE: 156° 28.0' W (-156.46678)
The bench mark is a disk set near telephone pole #7 located between Puunene
Street and Wharf Street on Kaahumanu Avenue across the street from the A&B
Hardware Store in Kahalui, 28.13 m (92.3 ft) east of a yellow fire hydrant #5
1.74 m (5.7 ft) north of the north curb edge of Kaahumanu Avenue, 1.43 m (4.7
ft) SW of a coconut tree, and 0.46 m (1.5 ft) south of telephone pole #7 which
has a white metal witness sign attached. The bench mark is set 9 cm (0.3 ft)
below ground, crimped to the top of a 9/16-inch stainless steel rod driven to a
depth of 15.8 m (52 ft),and protected by a 4-inch PVC plastic pipe with cover.
BENCH MARK STAMPING: 5680 C 1983
DESIGNATION: 161 5680 C TIDAL
MONUMENTATION: Tidal Station disk VM#: 1485
AGENCY: National Ocean Service (NOS) IDB PID#: DK3427
SETTING CLASSIFICATION: Stainless steel rod OPUS PID:
LATITUDE: 20° 53.4' N ( 20.88981) LONGITUDE: 156° 28.0' W (-156.46686)
The bench mark is a disk set on the west side of Puunene Avenue fronting the
Hawaii National Bank Building, 32.74 m (107.4 ft) north of the centerline of the
entrance to the Kahului Center, 16.37 m (53.7 ft) SE of the SE corner of "Lords
Team Ministries", 13.69 m (44.9 ft) NE of the SE corner of Hawaii National
Building, 8.41 m (27.6 ft) west of the centerline of Puunene Avenue, 3.67 m(20.2
ft) east of utility pole #9, 0.46 m (1.5 ft) west of a concrete curb. The bench
mark is set 9 cm (0.3 ft) below ground, crimped to the top of a 9/16-inch
stainless steel rod driven to a depth of 15.8 m (52 ft), and protected by a
4-inch PVC plastic pipe with cover. Note: Look for aluminum access cover in
sidewalk.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 6 of 8
Station ID: 1615680 PUBLICATION DATE: 12/11/2017
Name: KAHULUI, KAHULUI HARBOR, MAUI ISLAND
HI
NOAA Chart: 19342 Latitude: 20° 53.7' N ( 20.89500)
USGS Quad: WAILUKU Longitude: 156° 28.6' W (-156.47669)
T I D A L B E N C H M A R K S
BENCH MARK STAMPING: 5680 D 2000
DESIGNATION: 161 5680 D
MONUMENTATION: Tidal Station disk VM#: 16294
AGENCY: National Ocean Service (NOS) IDB PID#:
SETTING CLASSIFICATION: Concrete deck OPUS PID:
LATITUDE: 20° 53.7' N ( 20.89544) LONGITUDE: 156° 28.1' W (-156.46844)
The bench mark is a disk set flush in the concrete deck in the north corner of
Pier #2 and seaward of curb around pier for the Port of Kahului. It is 86 m
(282 ft) NE from west end of pier, 33 m (108 ft) NE of bench mark M-8, 2.14 m
(7.02 ft) NW of bollard #893, 0.92 m (3.0 ft) south of north tip of pier and
0.12 m (0.04 ft)north from curb.
BENCH MARK STAMPING: M-8
DESIGNATION: 161 5680 M-8
MONUMENTATION: Bench Mark disk VM#: 16295
AGENCY: Hawaiian Department of Transportation IDB PID#:
SETTING CLASSIFICATION: Concrete deck OPUS PID:
LATITUDE: 20° 53.7' N ( 20.89528) LONGITUDE: 156° 28.1' W (-156.46869)
The bench mark is a disk set flush in the NW corner of Pier #2 for the Port of
Kahului, 54.95 m (180.28 ft) NE the west corner of the pier, 35.0 m (114.8 ft)
SW of the north corner of pier, and 0.75 m (2.4 ft) inboard of the curb that
runs the perimeter of the pier.
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 7 of 8
Station ID: 1615680 PUBLICATION DATE: 12/11/2017
Name: KAHULUI, KAHULUI HARBOR, MAUI ISLAND
HI
NOAA Chart: 19342 Latitude: 20° 53.7' N ( 20.89500)
USGS Quad: WAILUKU Longitude: 156° 28.6' W (-156.47669)
T I D A L D A T U M S
Tidal datums at KAHULUI, KAHULUI HARBOR, MAUI ISLAND based on:
LENGTH OF SERIES: 19 YEARS
TIME PERIOD: January 1983 - December 2001
TIDAL EPOCH: 1983-2001
CONTROL TIDE STATION:
Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:
HIGHEST OBSERVED WATER LEVEL (08/21/2017) = 1.092
MEAN HIGHER HIGH WATER MHHW = 0.686
MEAN HIGH WATER MHW = 0.577
MEAN SEA LEVEL MSL = 0.339
MEAN TIDE LEVEL MTL = 0.338
MEAN LOW WATER MLW = 0.099
MEAN LOWER LOW WATER MLLW = 0.000
LOWEST OBSERVED WATER LEVEL (06/19/1955) = -0.492
Bench Mark Elevation Information In METERS above:
Stamping or Designation MLLW MHW
5680 A 1983 2.271 1.694
NO 8 1966 3.031 2.454
NO 9 1966 2.810 2.233
NO 11 1971 2.344 1.767
TIDAL BM 13 1975 2.924 2.347
E 22 1979 3.017 2.440
5680 B 1983 2.068 1.491
5680 C 1983 1.800 1.223
5680 D 2000 2.811 2.234
M-8 2.863 2.286
U.S. DEPARTMENT OF COMMERCE
National Oceanic and Atmospheric Administration
National Ocean Service
Page 8 of 8
Station ID: 1615680 PUBLICATION DATE: 12/11/2017
Name: KAHULUI, KAHULUI HARBOR, MAUI ISLAND
HI
NOAA Chart: 19342 Latitude: 20° 53.7' N ( 20.89500)
USGS Quad: WAILUKU Longitude: 156° 28.6' W (-156.47669)
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/.