Underwater Waterline Crossing

Location: Pearl Harbor, HI

Owner: U.S. Navy

Completion Date: January 1, 2015

The Replace 24” Underground Waterline Crossing from Pearl City Peninsula to Ford Island Project is to replace a 62 year old 24”ductile iron pipeline spanning below the harbor channel between Pearl City Peninsula and Ford Island for the U.S. Navy. The project provides much needed carrying capacity as well as backup capability for the Navy’s Pearl Harbor water system to maintain water service to all base facilities. The project included installing 3,425 lf of 24” fuseable PVC pipe below the channel bottom using horizontal directional drilling (HDD) method. It also included installation of 955 lf of 24” ductile iron pipelines to make the connections to existing waterlines on both sides of the channel.

This project has been honored with several awards including: GCA of Hawaii’s 2016 Build Hawaii Award of Excellence; and the American Council of Engineering Companies of Hawaii ‘s 2016 Excellence Award.