
COMMISSION AGENDA
T. Yoshitani, Chief Executive Officer
April 9, 2009
Page 2 of 4
Attachment B for a map of the project.) The City of Kent is requesting a Port contribution for the
second stage of the Project, a grade separation at the BNSF, which is currently under construction, and
the final stage of the Project, a grade separation at the Union Pacific, which will follow the BNSF
work. The grade separations completing the S. 228th Street corridor are critical to address the impacts
of increased rail traffic resulting from the reopening of Stampede Pass to freight traffic. They will
benefit the Port by providing a seamless truck connection between the forty million square feet of
warehouse and industrial space in the Kent Valley and the Port of Seattle and Sea-Tac Airport.
Cooperation with Partners
The proposed Agreements are based on an over-arching, prior FAST Corridor agreement. Closing the
final funding gap for Duwamish ITS and South 228th shows the Port’s continued commitment to its
partners to complete critical projects. The FAST Corridor partners include federal and state agencies,
local cities and counties, private partners, and the Ports of Seattle, Tacoma and Everett. FAST projects
extend along the rail corridor from Tacoma to Everett.
Executing these Agreements at the requested level of contribution would allow both projects to be
completed. This will help keep the FAST Corridor Program alive and support future federal and state
funding requests from the sponsors of the remaining projects. This approach would leave sufficient
funds allocated to the FAST Corridor program to allow the Port to contribute to those projects that are
getting close to implementation.
ENVIRONMENTAL SUSTAINABILITY/COMMUNITY BENEFITS
Operation of Duwamish ITS will provide the following benefits:
• Seattle’s traffic management system staff will be able to more effectively monitor conditions and
adjust traffic signals in real time to address congestion and incidents in the Duwamish.
• Dynamic message signs located at strategic locations in the Duwamish will inform trucks and
other traffic about traffic conditions and detours.
• Both the freight community and the general public will be able to access a web-based traffic flow
map providing real time information on traffic conditions in the Duwamish, allowing them to
check traffic and avoid congested areas when possible even before venturing out.
• These benefits will help reduce congestion and related safety problems and air emissions. They
will be essential in managing traffic during SR-99 Viaduct replacement.
Completion of the S. 228
th
Project will capture these benefits:
• The grade-separated railroad crossings of BNSF and UP mainlines improve safety for truckers,
motorists, bicyclists and pedestrians, as well as train operations.
• Vehicle travel times are reduced by eliminating wait times at the railroad crossings.
• The improved traffic flow will reduce vehicle idling times and improve air quality.