STATION Z — NGS TU1473 — Waipahu, US

This triangulation station is part of the National Geodetic Survey's network, which establishes the foundational control points for mapping and surveying activities throughout the United States and its territories. Located near Waipahu on the island of Oahu, Hawaii, this trig point serves as a reference for horizontal positioning and local surveys in the region. Triangulation stations of this type were historically established to create networks of precisely located points visible from multiple locations. Such marks provide essential control for detailed mapping, engineering projects, and land boundary determinations. The coordinates 21.51651°N, 157.98201°W represent this point's position within the geodetic framework. Verification and documentation of benchmarks like this remain valuable for surveyors and engineers undertaking construction, infrastructure projects, and property surveys. Even when elevation data is not recorded, the horizontal control provided by this station contributes to the broader network's utility and accuracy for professional surveying activities in Hawaii.

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