WSDOT - SR 520 Bridge Replacement and HOV Project

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No Build Alternative
4-Lane Cross Section
4-Lane Alternative
6-Lane Alternative
6-Lane Cross Section
8-Lane Alternative
Existing Cross Section
New Design Options

Existing cross section for No Build Alternative. Notice the substandard shoulders. Areas near interchanges are wider to accommodate on- and off-ramps.

Existing cross-section on SR 520.

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SR 520 Bridge Project - Existing Cross Section