• Project

SR 520 Montlake Project

Project overview

The Montlake Project will improve transportation for both motorized and nonmotorized travel along the corridor with a new SR 520 eastbound bridge over Union Bay. This project also builds a new, three-acre lid covering the highway in Montlake that will include regional transit stops and open green space. East of the lid, a bicycle and pedestrian bridge will be constructed over SR 520.

Summer 2019 - 2023
Project status
$455 million
Project hotline

What to expect

The SR 520 bridge over Lake Washington will be fully closed in both directions between I-5 and the eastside from 11 p.m. Friday, Aug. 26 to 5 a.m. Monday, Aug. 29. Drivers should plan for delays in Montlake due to construction on SR 520. Click below for upcoming highway and ramp closures.

Area map of SR 520 Montlake Project in Seattle