U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Datums Page Page 1 of 7 PUBLICATION DATE: 02/28/2001 Station ID: 1611347 SUPERCEDED DATE: 04/21/2003 Name: PORT ALLEN, HANAPEPE BAY, KAUAI ISLAND HAWAII NOAA Chart: 19382 Latitude: 21° 54.2' N USGS Quad: HANAPEPE Longitude: 159° 35.5' W To reach the tidal bench marks from the airport in Kauai, turn left on to Highway 50 (west) and continue on Highway 50 for approximately 8 km (5 mi) until you reach Port Allen. At Port Allen, turn left on Highway 541 and go about 1.2 km (0.7 mi) to the State of Hawaii transit building on the pier. The gauge was located inside the building and the bench marks are located in the vicinity. T I D A L B E N C H M A R K S PRIMARY BENCH MARK STAMPING: 1347 A 1988 DESIGNATION: 161 1347 A MONUMENTATION: Tidal Station disk VM#: 12294 AGENCY: National Ocean Survey (NOS) PID: SETTING CLASSIFICATION: Concrete pier The primary benck mark is a disk set between two 6-inch diameter red steel posts that stand 1.52 m (5.0 ft) high and protect an emergency fire pump station, 2.74 m (9.0 ft) east of the large roll-up main entrance door of the State of Hawaii Port Allen transit shed, and 1.25 m (4.1 ft) NE of a 10-inch diameter hole cut through the pier deck which has a steel 8-inch pipe through it. BENCH MARK STAMPING: 1 1926 DESIGNATION: 161 1347 TIDAL 1 MONUMENTATION: Tidal Station disk VM#: 6449 AGENCY: US Coast & Geodetic Survey (USC&GS) PID: SETTING CLASSIFICATION: Concrete foundation The bench mark is a disk set in a concrete foundation for a derrick on an abandoned loading wharf at the SW end of Eleele, near the inshore end on the NW side of breakwater, at the east side of Hanapepe Bay, 122 m (400 ft) SE across the water from present Port Allen Pier, 41 m (135 ft) SW of a stairway leading up to the top of a small bluff, 29 m (96 ft) SW of inshore end of pier, 6 m (20 ft) SW of an old engine hoist, 1.22 m (4.0 ft) NW of a concrete stairway leading down to a lower level boat landing, 0.40 m (1.3 ft) SW of the edge of foundation, and 0.21 m (0.7 ft) above the wharf level.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 2 of 7 PUBLICATION DATE: 02/28/2001 Station ID: 1611347 SUPERCEDED DATE: 04/21/2003 Name: PORT ALLEN, HANAPEPE BAY, KAUAI ISLAND HAWAII NOAA Chart: 19382 Latitude: 21° 54.2' N USGS Quad: HANAPEPE Longitude: 159° 35.5' W T I D A L B E N C H M A R K S BENCH MARK STAMPING: 3 1926 DESIGNATION: 161 1347 TIDAL 3 MONUMENTATION: Tidal Station disk VM#: 6450 AGENCY: US Coast & Geodetic Survey (USC&GS) PID: SETTING CLASSIFICATION: Concrete slab The benck mark is a disk set in a concrete cornerstone at the west end of the ruins of a warehouse foundation wall, on a bluff above the inshore end of breakwater, 82.30 m (270.0 ft) WSW of gas storage tanks, on the north edge of a cut through which railway passed, 5.94 m (19.5 ft) SE of a power pole, 4.11 m (13.5 ft) east of a top step of a stairway leading down to an old wharf, 0.46 m (1.5 ft) west of a wall foundation, and 0.91 m (3.0 ft) below the top of foundation. BENCH MARK STAMPING: 35 DESIGNATION: 161 1347 TIDAL 35 ALIAS: 4 MONUMENTATION: Bench Mark disk VM#: 6451 AGENCY: U.S. Geological Survey (USGS) PID: SETTING CLASSIFICATION: Concrete monument The benck mark is a disk set in a 0.3 m (1 ft) diameter truncated concrete cone extending 0.3 m (1 ft) above a 0.91 m (3.0 ft) diameter base on a bluff at the inshore end of breakwater, 82.30 m (270.0 ft) WSW of gas storage tanks, 9.60 m (31.5 ft) north of bench mark 3 1926, 8.23 m (27.0 ft) ENE of power pole #9902, 4.57 m (15.0 ft) WNW of a right angle bend in gas mains, 3.81 m (12.5 ft) west of west one of a row of seven gas mains, and 0.21 m (0.7 ft) above the ground.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 3 of 7 PUBLICATION DATE: 02/28/2001 Station ID: 1611347 SUPERCEDED DATE: 04/21/2003 Name: PORT ALLEN, HANAPEPE BAY, KAUAI ISLAND HAWAII NOAA Chart: 19382 Latitude: 21° 54.2' N USGS Quad: HANAPEPE Longitude: 159° 35.5' W T I D A L B E N C H M A R K S BENCH MARK STAMPING: 1347 B 1988 DESIGNATION: 161 1347 B MONUMENTATION: Tidal Station disk VM#: 12295 AGENCY: National Ocean Survey (NOS) PID#: AA3584 SETTING CLASSIFICATION: Concrete pier The benck mark is a disk set 29.84 m (97.9 ft) NW of the southerly edge of the pier, 20.12 m (66.0 ft) SW of a fire hydrant, 0.79 m (2.6 ft) south of the center of a steel bollard at the NE inshore end of pier, and 0.79 m (2.6 ft) east of the NE corner of the pier transit shed. BENCH MARK STAMPING: 1347 C 1988 DESIGNATION: 161 1347 C MONUMENTATION: Tidal Station disk VM#: 12296 AGENCY: National Ocean Survey (NOS) PID: SETTING CLASSIFICATION: Concrete slab The benck mark is a disk set 11 m (36 ft) NW of the centerline of State Highway 541 where it terminates at the dock, 10.39 m (34.1 ft) SW of utility pole #9, 4.02 m (13.2 ft) south of the center of the steel pump housing, and 0.15 m (0.5 ft) from the southerly corner of a 3 m x 6 m (10 ft x 20 ft) concrete slab of a sewage pumping station,
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 4 of 7 PUBLICATION DATE: 02/28/2001 Station ID: 1611347 SUPERCEDED DATE: 04/21/2003 Name: PORT ALLEN, HANAPEPE BAY, KAUAI ISLAND HAWAII NOAA Chart: 19382 Latitude: 21° 54.2' N USGS Quad: HANAPEPE Longitude: 159° 35.5' W T I D A L B E N C H M A R K S BENCH MARK STAMPING: 1347 D 1988 DESIGNATION: 161 1347 D MONUMENTATION: Tidal Station disk VM#: 12297 AGENCY: National Ocean Survey (NOS) PID: SETTING CLASSIFICATION: Concrete foundation The benck mark is a disk set at the NE corner of an unused 15 m x 69 m (50 ft x 225 ft) concrete foundation of former fish tank, 30.57 m (100.3 ft) SW of edge of a macadam road, 19.42 m (63.7 ft) SE of the centerline of State Highway 541, 11.58 m (38.0 ft) NW of the NW corner of a large aluminum sided commercial building, and 0.76 m (2.5 ft) above ground level. BENCH MARK STAMPING: 1347 E 1991 DESIGNATION: 161 1347 E MONUMENTATION: Tidal Station disk VM#: 12403 AGENCY: National Ocean Service (NOS) PID: SETTING CLASSIFICATION: Concrete jetty foundation The benck mark is a disk set in a concrete foundation at the south end of a small concrete jetty, 22.25 m (73.0 ft) south of a light foundation on the jetty, 0.70 m (2.3 ft) from the north edge of the foundation, 0.27 m (0.9 ft) from the east edge of the foundation, and 0.70 m (2.3 ft) above the ground.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 5 of 7 PUBLICATION DATE: 02/28/2001 Station ID: 1611347 SUPERCEDED DATE: 04/21/2003 Name: PORT ALLEN, HANAPEPE BAY, KAUAI ISLAND HAWAII NOAA Chart: 19382 Latitude: 21° 54.2' N USGS Quad: HANAPEPE Longitude: 159° 35.5' W T I D A L B E N C H M A R K S BENCH MARK STAMPING: 1347 F 1991 DESIGNATION: 161 1347 F MONUMENTATION: Tidal Station disk VM#: 12404 AGENCY: National Ocean Service (NOS) PID: SETTING CLASSIFICATION: Concrete ramp The benck mark is a disk set in a concrete ramp in the middle of a warehouse on the NW side of Waialo Road, located on the west corner of a ramp leading to Car Crafts at 4341 Waialo Road (located in the middle of the building flanked by C&S Feed and Supply to the NE and Martin Steel Constructors, Inc. to the SW), 0.30 m (1 ft) from the building, 0.21 m (0.7 ft) from the SW edge of the ramp, and 0.37 m (1.2 ft) above ground. BENCH MARK STAMPING: PIER STATION PIER 7 1981 DESIGNATION: 161 1347 PIER LANI 7 MONUMENTATION: Bench Mark disk VM#: 12405 AGENCY: US Army Corps of Engineers (USACE) PID: SETTING CLASSIFICATION: Concrete pier deck The benck mark is a disk set near the westerly corner of the Port Allen pier, 8.26 m (27.1 ft) SE of the westerly corner, 2.74 m (9.0 ft) SW of the westerly corner of a transit shed, and 1.22 m (4.0 ft) NE of the SW edge of the pier.
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 6 of 7 PUBLICATION DATE: 02/28/2001 Station ID: 1611347 SUPERCEDED DATE: 04/21/2003 Name: PORT ALLEN, HANAPEPE BAY, KAUAI ISLAND HAWAII NOAA Chart: 19382 Latitude: 21° 54.2' N USGS Quad: HANAPEPE Longitude: 159° 35.5' W T I D A L D A T U M S Tidal datums at PORT ALLEN, HANAPEPE BAY, KAUAI ISLAND based on: LENGTH OF SERIES: 94 MONTHS TIME PERIOD: March 1989 - December 1996 TIDAL EPOCH: 1960-1978 CONTROL TIDE STATION: 1611400 NAWILIWILI, NAWILIWILI HARBOR, KAUAI Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS: HIGHEST OBSERVED WATER LEVEL (09/12/1992) = 1.804 MEAN HIGHER HIGH WATER MHHW = 0.569 MEAN HIGH WATER MHW = 0.431 MEAN SEA LEVEL MSL = 0.262 MEAN TIDE LEVEL MTL = 0.249 MEAN LOW WATER MLW = 0.067 MEAN LOWER LOW WATER MLLW = 0.000 LOWEST OBSERVED WATER LEVEL (05/14/1991) = -0.247 Bench Mark Elevation Information In METERS above: Stamping or Designation MLLW MHW 1347 A 1988 3.453 3.022 1 1926 4.360 3.929 3 1926 9.670 9.239 35 10.676 10.245 1347 B 1988 3.317 2.886 1347 C 1988 7.052 6.621 1347 D 1988 10.574 10.143 1347 E 1991 2.135 1.704 1347 F 1991 10.915 10.484 PIER STATION PIER 7 1981 3.374 2.943
U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Ocean Service Page 7 of 7 PUBLICATION DATE: 02/28/2001 Station ID: 1611347 SUPERCEDED DATE: 04/21/2003 Name: PORT ALLEN, HANAPEPE BAY, KAUAI ISLAND HAWAII NOAA Chart: 19382 Latitude: 21° 54.2' N USGS Quad: HANAPEPE Longitude: 159° 35.5' W 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.