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Hanapepe River Bridge

Project Overview

The Central Federal Lands Highway Division of the Federal Highway Administration, in cooperation with the Hawaii Department of Transportation is developing a project located on the Kaumualii Highway, Route 50, at M.P. 16.57, the Hanapepe River Bridge, on the Island of Kauai.

A Final Environmental Assessment (EA) and Finding of No Significant Impact (FONSI) has been prepared pursuant to HRS Chapter 343 (as amended), and Hawaii Administrative Rules Title 11, Chapter 200.   The document is available for download and review by clicking on the document link at the bottom of this page.


HDOT has partnered with the USDOT Central Federal Lands Highways Division (CFLHD) to deliver bridge and other highway improvement projects throughout the islands.

Other HDOT/CFL MOA Partnership Projects


Project Details:

Under Construction
Island of Kauai, HI

The project is located on the Kaumualii Highway (Route 50), the coastal perimeter road serving the west side. The subject bridge crosses the Hanapepe River near Hanapepe Bay. The project improves the safety and reliability of the Hanapepe Bridge, through rehabilitation or replacement, addressing bridge width, load capacity, bridge railing and transitions, bridge approaches and to mitigate the effects of scour.


Update 6/1/20

The contractor has completed the drilled shaft foundation construction. Work continues on demolition of the existing bridge. Once the existing bridge is removed, contractor operations will include bridge abutments, pier cap construction, in preparation of placing the bridge girders.

Update 5/1/20

There is no new information to share at this time.

Update 4/1/20

There is no new information to share at this time.

Update 3/1/20

There is no new information to share at this time.

Update 2/1/20

The contractor began night time operations in mid-January in effort to makeup loss time associated with utility relocations. Work continue to include drilled shaft construction for the new bridge foundations. Activity look ahead includes continued drilled shaft construction with bridge demolition to begin once completed.

Update 12/1/19

There is no new information to share at this time.

Update 11/1/19

There is no new information to share at this time.