Description
The 4-Lane Alternative will have four lanes (two general purpose lanes in each direction), the same number of lanes as today.
Likely cost: $2.79 billion
SR 520 will be rebuilt from I-5 to Bellevue Way. Both the Portage Bay and Evergreen Point bridges will be replaced.
Street bridges and overpasses crossing over SR 520 will also be rebuilt.
Roadway shoulders will meet current standards (4-foot inside shoulder and 10-foot outside shoulder).
A 14-foot-wide bicycle/pedestrian path will be built along the north side of SR 520 through Montlake and across the Evergreen Point Bridge and along the south side of SR 520 through the Eastside to 96th Avenue Northeast.
Sound walls will be built along much of SR 520 in Seattle and the Eastside.
This alternative includes stormwater treatment and electronic toll collection.
The floating bridge pontoons of the Evergreen Point Bridge will be sized to carry future high capacity transit. An option with smaller pontoons that could not carry future high capacity transit will also be analyzed. The alternative does not include an HCT alignment.
A flexible transportation plan (FTP) will provide funding to promote alternative modes of travel and increase the efficiency of the system, including intelligent transportation and technology, traffic systems management, vanpools and transit, education and promotion, and land use as demand management.
Return to Current Plans6-Lane Alternative |
No Build Alternative |
What happened to the 8-Lane Alternative?