SOH 54 — NGS DR2117 — Waipahu, US

This trigonometric station is part of the NGS network, which establishes and maintains the fundamental geodetic control framework for the United States. Trigonometric stations serve as primary reference points for surveying, mapping, and engineering projects across their respective regions. Located near Waipahu on the island of Oahu, Hawaii, at coordinates 21.49778°N, 158.02969°W, this benchmark contributes to geodetic control in the Hawaiian Islands. Such monumented points are essential for validating survey work, establishing local coordinate systems, and supporting infrastructure development. Documentation and periodic verification of trigonometric stations ensure the accuracy and reliability of geodetic networks. For surveying professionals, these stations provide verifiable reference points critical to maintaining standards in land surveys, construction projects, and spatial data infrastructure throughout Hawaii and the Pacific region.

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