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Published on March 30, 2011

Washington State Department of Transportation Plans I-405 Closure

53-hour full closure from Friday, April 1 at 11 p.m. to Monday, April 4 at 4 a.m.

What’s happening on I-405 in Bellevue?

Crews plan to close all freeway lanes in both directions between NE Eighth Street and SR 520 the weekend of April 1 to 4 to remove the old NE 12th Street Bridge. Crews must close the freeway because they can’t safely take down the bridge while traffic passes under it. With nearly 450,000 vehicles traveling this route on a typical weekend, the closure is Washington State Department of Transportation’s biggest this construction season.

Removing the bridge will allow crews to finish building a new, longer, wider bridge over I-405 at NE 12th Street. They are replacing the bridge to make room for new northbound ramps from NE Eighth and NE 10th streets. The project will improve safety and traffic flow between I-405 and SR 520.

Where and when will I-405 close?

Crews will close I-405 in both directions between NE Eighth Street and SR 520 from Friday, April 1 at 11 p.m. to Monday, April 4 at 4 a.m. Crews also will close NE 12th Street from 112th Ave. NE to 116th Ave. NE and many area ramps during the same weekend.

How should I prepare for the closure?

Please plan ahead, use alternate routes or defer trips during the 53-hour closure period. Plan for congestion throughout the region and allow extra time for travel.

Overlake Hospital Medical Center will be open for patients

Northbound I-405 off-ramps will be open as far as NE Eighth Street. Southbound drivers will detour via SR 520 to 108th Ave. NE. See the back for driving directions to Overlake during the construction.

Check the WSDOT website for maps and the latest information


Directions to Overlake Hospital Medical Center During I-405 Closure

From the north (Kirkland, etc.)

From the east (Issaquah, etc.)

Option A:

Take I-405 southbound.

Exit onto SR 520 eastbound.

Take 124th Ave NE exit.

Go straight onto 124th Ave NE.

Turn right onto NE 12th Street.

Turn left onto 116th Ave NE.

Turn right onto desired Overlake entrance.

The ramp from westbound I-90 to northbound I-405 will be CLOSED.

Option A:

Take westbound I-90 to 148th Ave NE.

Go north on 148th Ave NE.

Turn left onto NE Eighth Street.

Turn right onto 116th Ave NE.

Follow signs to hospital.

Option B:

Take I-405 southbound.

Exit onto SR 520 westbound.

Exit onto 108th Ave NE.

Turn left at end of ramp.

Follow 108th as it becomes 112th Ave NE.

Turn left onto NE 10th Street.

Turn left onto 116th Ave NE.

Turn left onto desired Overlake entrance.

The ramp from westbound I-90 to northbound I-405 will be CLOSED.

Option B:

Take I-90 westbound.

Exit onto Bellevue Way.

Veer right onto 112th Ave NE.

Turn right onto NE Eighth Street.

Turn left onto 116th Ave NE.

Follow signs to desired Overlake entrance.

From the south (Newcastle, Renton, etc.)

From the west (Mercer Island, etc.)

Take northbound I-405.

All northbound off-ramps up to and including NE Fourth and Eighth Street will be open.

Follow signs to the hospital as usual.

The ramp from eastbound I-90 to northbound I-405 will be closed.

Take I-90 eastbound.

Exit onto Bellevue Way.

Veer right onto 112th Ave NE.

Turn right onto NE Eighth Street.

Turn left onto 116th Ave NE.

Follow signs to desired Overlake entrance.