HOK Sum

Prepared Under a Grant from the State of Washington for the: City of Burien, Washington City of Des Moines, Washington City of Federal Way, Washington City of Normandy Park, Washington Highline School District Highline Community Hospital Prepared by: Helmuth, Obata + Kassabaum, Inc. - Dallas, Texas Raytheon Infrastructure Services, Inc. - Denver and Philadelphia In Association With: Thomas/Lane & Associates, Inc. - Seattle, Washington Michael J. McCormick, AICP - Olympia, Washington Executive Summary There is no doubt that the expansion of Sea-Tac International Airport will have a positive economic benefit for the region and the State. However, the costs associated with these improvements are disproportionately borne by those communities immediately surrounding the Airport. Communities such as Burien and Des Moines are projected to be impacted by noise, traffic congestion, and socioeconomic hardship merely because of their location near the Airport. Of the estimated $2.95 billion in potential mitigation costs, $2.3 billion (almost 80%) is projected to be required for Burien ' and Des Moines alone. Other environmental, transportation, and socio-economic costs have not yet been calculated. This study does not assign mitigation costs to any particular agency. While the Port of Seattle and the Federal Aviation Administration will be financially responsible for a portion of the mitigation costs, funding from other sources is also expected. For example, increased transportation funding is available through the Washington State Department of Transportation and the Federal Highway Administration. Some environmental mitigation costs may be eligible for State and Federal EPA funding. Costs associated with…
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