#9. Third runway -- embankment construction, Phase 4

Original contract amount: $25.17 million

The third runway embankment will raise up the surface of the proposed third runway at Sea-Tac International Airport.
Photo courtesy of the Port of Seattle

Project address:
Sea-Tac International Airport

Start of construction: May 14, 2001

Expected completion date:
March 26, 2002

Port of Seattle

The embankment is being constructed to raise up the surface of the proposed $773 million third runway at Seattle-Tacoma International Airport. This project is the fourth phase of the embankment construction.

Major work includes clearing and grubbing of approximately 50 acres, construction of embankment totaling approximately 1.9 million cubic yards, and subgrade improvements.

Additional construction includes installation and maintenance of temporary erosion control measures, drainage features, large sedimentation ponds, state-of-the-art wheel wash systems, hydroseeding, and all necessary traffic control to complete the project.


City Transfer of Kent, P.O. Box 1048, Kent, WA 98035, (253) 850-1775

HNTB Corp., 600 108th Ave. N.E., Suite 400, Bellevue, WA 98004, (425) 455-3555

Other Participants
AMEC Earth & Environmental
Gary Merlino Construction Co. Inc.
Hayward Baker Inc.
ICON Materials
Ms. Lloyd Inc.
Security Barricade Inc.
Terra Dynamics Inc.
Willis Trucking Inc.

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