Kahoma Uka Bridge

In order to improve the quality of life for the West Maui community, the Hawaii Department of Transportation assessed the input from the public and made the dream of a Lahaina Bypass into reality.

Lahaina Bypass provides an alternate route to Honoapiilani Highway in the vicinity of Lahaina town, alleviates traffic congestion, and improves circulation of vehicles in the area. This new roadway also contains a truly unique structure to traverse Kahoma Stream.

The final design of Kahoma Uka Bridge was selected after considering a myriad of structure types and construction methods.The evaluation process included the desired span length, existing conditions, environmental impacts, material strengths and capabilities, aesthetics and cost. As a result, the community was presented with a horizontally curved, 60 foot wide, 360 foot single span, low-profile, inverted tied arch bridge that neither obstructs the scenic view planes nor interferes with the stream environment below.

KSF, Inc. was the structural engineering consultant for this project.  In addition, we provided construction engineering services which included preparing precast, post-tensioning, falsework and form working drawings and quality control for the construction of structural components.


2014 Engineering Excellence Grand Conceptor Award, American Council of Engineering Companies of Hawaii

2013 Best Large Project, American Society of Civil Engineers, Hawaii Section

2013 Best Overall Project, American Society of Civil Engineers, Hawaii Section