NEWS
Kenny Holes Out at Brightwater East
November 15, 2008
Kenny Construction Company, and its joint venture partners, are pleased to announce they have holed out at the Brightwater East tunnel project.
Brightwater East is part of a $705 million wastewater conveyance system which will include an east tunnel, a central tunnel and a west tunnel. The east segment of the conveyance system consists of 14,050 feet of concrete segmentally-lined tunnel with an inside diameter of 16 feet 8 inches. An Earth Pressure Balance Machine (EPBM) was used to bore a tunnel approximately 18 feet in diameter to depths of up to 260 feet below the surface.
The project lies near the north end of the Seattle Basin which is filled with Late Tertiary sedimentary rock and Quaternary sediments.
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