Dam Catwalks


Atlas Geotechnical designed five replacement catwalks at the Upper Kapahi and Wailua Reservoirs on Kauai. The catwalks provide access to gate valve actuators on the outlet works. We worked for Jennings Pacific LLC, who had been awarded the project except that budget restrictions precluding the State of Hawaii DLNR providing Notice to Proceed. Atlas’ design eliminated piles driven through the embankment (an unconventional approach, to say the least) that the bid documents required. The simple structures are concrete up to above the spillway threshold elevation and galvanized steel above.

Project Type

  • Dam

Project Details

Kauai, HI


Atlas Cost: $65,000

Project Cost: $1.9 million


Jennings Pacific LLC


Hawaii Department of Land and natural Resources


April 2012