HK 22 — NGS DI2793 — Waipahu, US

USNGStrigunknown#768
Latitude
21.383756°
Longitude
-158.031747°
Ellipsoidal h
78.17 m
Ortho h
61.99 m
Verifications
0
Last checked
Never
This trigonometric station is part of the National Geodetic Survey network, which provides the foundational control points for surveying, mapping, and engineering projects throughout the United States. Located near Waipahu on the island of Oahu, Hawaii, this benchmark serves as a precise positional and vertical reference for regional geodetic work. Trigonometric stations of this class are traditionally established at elevated or prominent locations to facilitate sight lines for triangulation networks. The ellipsoidal elevation of 78.2 meters contributes to the three-dimensional control framework essential for modern surveying applications, including cadastral surveys, infrastructure development, and scientific monitoring. Verification and documentation of such reference points remain critical for maintaining survey accuracy and ensuring consistency across projects. This station's inclusion in the active NGS registry supports professional surveying practice and long-term geodetic infrastructure management in Hawaii.

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HK 22 — NGS DI2793 — Waipahu, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #768 on SurveyingPedia and sits at an approximate elevation of 62.0 metres. Its coordinates in WGS84 are 21.383756°, -158.031747°, corresponding to 21° 23′ 1.52″ N, 158° 1′ 54.29″ W in the traditional degrees-minutes-seconds format. This page is a self-updating reference — all data is aggregated from public open sources and cross-checked periodically against the originating agency.

Professional surveyors, engineers, and topographers use points like HK 22 — NGS DI2793 — Waipahu, US to anchor total-station traverses, verify GNSS/RTK solutions, calibrate levelling instruments, and validate survey deliverables against known coordinates. The record on this page is refreshed daily via automated pipelines that monitor the public sources for any updates, corrections, or status changes.

Coordinate formats

WGS84 (decimal)21.383756, -158.031747
WGS84 (DMS)21° 23′ 1.52″ N, 158° 1′ 54.29″ W
UTM zone (approx.)Zone 4N (approx.)
Elevation61.99 m
Precise conversionOpen in coordinate converter →

Geodetic context in United States

The national geodetic reference in United States is maintained by National Geodetic Survey (NGS). The active datum is NAD83(2011) / NATRF2022 (active). Coordinates shown on this page are expressed in WGS84 (ETRF/ITRF-compatible) which is directly usable in most modern GNSS receivers. For cadastral work in United States you may need to convert to the local datum using the Coordinate Hub.

Browse the full list of indexed control points in United States from the country page.

Nearby benchmarks

The closest 6 indexed control points within roughly 50 km of this location:

US NGS · triangulation station
WAIPAHU — NGS TU1620
0.1 km away · US
US NGS · triangulation station
SOH 41 — NGS DR2103 — Waipahu, US
0.1 km away · US
US NGS · triangulation station
SAN FRAN — NGS DI2796 — Waipahu, US
1.0 km away · US
US NGS · triangulation station
9 4 — NGS TU0638 — Waipahu, US
1.0 km away · US
US NGS · triangulation station
KIAKAT — NGS DI2801 — Waipahu, US
1.1 km away · US
US NGS · triangulation station
UNUTS — NGS DI2798 — Waipahu, US
1.1 km away · US

Frequently asked questions

What is HK 22 — NGS DI2793 — Waipahu, US?

HK 22 — NGS DI2793 — Waipahu, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #768 and sits at an elevation of 62.0 metres. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of HK 22 — NGS DI2793 — Waipahu, US?

The position of HK 22 — NGS DI2793 — Waipahu, US in WGS84 is 21.383756°, -158.031747° (decimal), or 21° 23′ 1.52″ N, 158° 1′ 54.29″ W in degrees-minutes-seconds. For planar surveys in United States this falls approximately in UTM Zone 4N (approx.).

How can I reach and visit this triangulation station?

Use the satellite imagery above to see the surrounding area. You can open this location directly in Google Maps, Google Earth, Bing Maps, or OpenStreetMap using the buttons provided. Many geodetic points are accessible to the public; some are on protected or private land — check local regulations before any field visit. Always bring documentation or your credentials if you plan to use the marker for professional measurement.

Is this point verified and usable for professional surveying?

This record has been community-verified 0 times. Data quality depends on the source: NGS and official national agency points are typically centimetre-accurate, OpenStreetMap survey points are metre-accurate, and GeoNames topographic landmarks (peaks, hills) are reference-grade only. Always cross-reference with the original agency datasheet before using this point for cadastral, legal, or safety-critical work.

Original source: this record was imported from ngs_public. Always refer to the original datasheet for the most up-to-date and authoritative data.