• 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 - 2024
Project status
$455 million
Project hotline

What to expect

Eastbound State Route 520 will close beginning at 9 p.m. on Saturday, Feb. 11 through 9 a.m. Sunday, Feb. 12. Crews will be working on the new Montlake lid. Eastbound SR 520 will be closed between I-5 in Seattle and 92nd Ave NE in Clyde Hill. The SR 520 Trail will be open.

All current closure information be found on the SR 520 Construction Corner webpage.

Area map of SR 520 Montlake Project in Seattle