Honolulu Rail Transit Project

CLIENT City & County of Honolulu

               Honolulu Authority for Rapid Transit

Location Honolulu, HI

The Honolulu Rail Transit (HRT) project constructs a new elevated rail line connecting West Oahu with downtown Honolulu and Ala Moana Center on the Island of Oahu.

Shannon & Wilson served as geotechnical consultant for two design-build contracts: the West O'ahu/Farrington Highway Guideway, and the Kamehameha Highway Guideway-which form the initial 10.8 miles of the elevated guideway's 20-mile system.

Variable subsurface conditions along the rail line alignment impacted the guideway foundation's design and construction. As an Alternative Technical Concept, the team designed the drilled shafts to utilize post-grouting tips, which increased each shaft's base resistance in granular layers.  Using post-grouted shafts reduced the penetrations of drilled shafts installed in areas with numerous cobbles and boulders. This innovation decreased construction duration and risks per shaft, and saved the client approximately $10 million.


Monique Anderson
Vice President

Elizabeth Barnett
Senior Geologist

Gerard Buechel
Senior Vice President

Jeremy Butkovich
Vice President

Bob Mitchell
Board of Directors - Chair

Kathryn Petek
Vice President

Hisham Sarieddine
Vice President

Seattle Website Design