Fort Kam Sewer Outfall

Location: Pearl Harbor, HI

Completion Date: January 1, 2004

The scope of this project involved the replacement of an aged and damaged 2000 feet outfall pipe at the Ft. Kamehameha Wastewater Treatment Plant at Pearl Harbor. The new 2.4 miles long pipe allows effluent to be discharged further out to sea thus improving the overall water quality within the Pearl Harbor estuary as well as the neighboring shoreline areas.

This was a one-of-kind deepwater ocean outfall pipeline project that broke ground into many new technologies and construction methods including: jet grouting, microtunneling, offshore piledriving, surveying, and underwater unexploded ordinance detection. This project has been honored with several awards including: Trenchless Technology’s award for Runner-Up Project of the Year: New Installation for its achievements in microtunneling; GCA of Hawaii’s 2004 Build Hawaii Award of Excellence; American Public Works Association’s 2004 Project of the Year Award for Environment; ASCE Hawaii Chapter’s 2004 Outstanding Civil Engineering Achievement Award; the American Council of Engineering Companies of Hawaii ‘s 2005 Excellence Award; and 2005 AON Build America Award.