EWA PLAN — NGS DI2792 — Waipahu, US

This triangulation station is part of the National Geodetic Survey's network, which provides the fundamental control framework for surveying and mapping activities throughout the United States. Located near Waipahu on the island of Oahu, Hawaii, this trig point serves as a reference station for establishing accurate horizontal and vertical control in the region. The ellipsoidal elevation of 25.3 meters relates to measurements referenced to modern geodetic datums. Trig stations of this type are established to enable surveyors, engineers, and planners to conduct precise surveys for infrastructure development, property demarcation, and geographic information system applications. Documentation and periodic verification of such control points ensure the integrity of the geodetic framework and support the accuracy of spatial data upon which public works, land management, and scientific research depend.

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