Primary Adjustment of Leveling Observations to Establish a Consistent Vertical Datum Tied to Local Mean Sea Level for Lanai, HI

This report summarizes work related to the adjustment of leveling data for the island of Lanai, Hawaii. This is a part of a larger effort on the part of Hawaii DOT for recon, mark setting, descriptions, leveling observations following FGCS Specifications and Procedures for Second Order Class I digital leveling, data processing following NGS Guidelines, and submitting data to NGS county by county. The State of Hawaii will contract the leveling work for the islands of Oahu, Maui, Molokai, Lanai, Kauai, and Hawaii for a total of 1001.3 miles. These six islands are part of four counties, and the state is planning on performing the leveling county by county. This report represents the culmination of the work on the first of these islands.