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SR 520 Bridge Program News

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I-5 to Medina: Bridge Replacement and HOV Project

Medina to SR 202: Eastside Transit and HOV Project

Pontoon Construction Project groundbreaking
Pontoon Construction Project Groundbreaking

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SR 520 email update - Aug. 28, 2014 

We’re all atwitter to bring you the latest on SR 520 construction

Looking for a way to get more information about the SR 520 program? Try connecting with us on Twitter. You’ll find short updates on construction progress, links to program photos and videos, alerts of construction-related highway closures, and more. You’ll find us tweeting at @wsdot_520. And of course, you can check out our website too.

Heads up: Westbound SR 520 closing overnight on Tuesday, Sept. 2; nighttime closures also happening next week at 108th Ave NE and Northup Way

If you’re planning a late-night drive across Lake Washington next Tuesday, Sept. 2, be aware that SR 520’s westbound lanes will be closed for construction that night. You’ll need to take I-90 or another alternate route from the Eastside to reach Seattle. Also next week, construction crews in Bellevue will close the intersection of 108th Avenue Northeast and Northup Way for three consecutive nights, starting Tuesday.
Westbound SR 520 closure:
• 11 p.m. Tuesday, Sept. 2 to 5 a.m. Wednesday, Sept. 3 between 92nd Avenue Northeast and Montlake Boulevard.
• Crews will use the westbound lanes to mobilize equipment as they put the finishing touches on the new West Connection Bridge.
108th Avenue Northeast and Northup Way closure:
• Tuesday night, Sept. 2 to the morning of Friday, Sept. 5; the 108th Avenue Northeast and Northup Way intersection will close nightly from 10 p.m. to 5 a.m.
• Crews working on the Eastside Transit and HOV Project will use the overnight closures for traffic-island demolition.

You’ll find the latest information on planned SR 520 traffic restrictions and construction activities on the SR 520 Orange Page.
SR 520’s east navigation channel open to boaters during Labor Day weekend
With our glorious summer drawing to a close, watercraft may be out in force over the Labor Day weekend. So as always, we’re encouraging boaters to sail and motor safely on Lake Washington and use caution when navigating under or near the SR 520 floating bridge.

The existing bridge’s east navigation channel near Medina – typically closed to boat traffic during construction of the new floating bridge – will be open during the holiday weekend to boats under 58 feet tall. The special opening runs from 9 a.m. Friday, Aug. 29 to 5 a.m. Tuesday, Sept. 2. Labor Day weekend is one of several special dates when the east navigation channel is open to boaters. Outside these special dates, the east channel is blocked by in-water construction equipment.

The west navigation channel, as usual, remains open to boats under 45 feet tall. This channel is narrower, though, due to the location of the new bridge’s western-most pontoon, so boaters should use added caution there. View a graphic of the SR 520 navigation channel configurations this weekend for a more detailed look.
Boaters with vessels taller than 58 feet still need to request a drawspan opening to get past the current floating bridge. Please visit our drawspan webpage for more information.
A Labor Day salute for those laboring to rebuild SR 520
Building the world’s longest floating bridge is a big job. As you might guess, it requires community outreach, environmental studies, risk analysis, planning, design work, and engineering. But above all, the job takes labor, lots and lots of labor – sometimes around the clock – by heavy-equipment operators, concrete masons, steelworkers, carpenters, welders, electricians, crane operators and many other skilled trades people.
With Labor Day just around the corner, we at WSDOT want to thank the more than 1,400 workers who are building a new SR 520 floating bridge and giving the Puget Sound region a safer, higher-capacity urban highway between I-5 and I-405. While you’re enjoying this holiday weekend, we invite you to read our short Labor Day tribute to these skilled, hard-working men and women.

Check out the refined design concepts for SR 520 in Seattle at our public open house on the 11th of September

Please join us at our public meeting on Sept. 11 in Montlake to learn more about updated design concepts for SR 520 improvements in the Seattle area. In 2012, the Seattle Community Design Process resulted in a series of well-supported refinements to west side elements. This summer, design professionals have been working hard to address key topics that remained. Staff with the Washington State Department of Transportation and the city of Seattle will be on hand to share the latest design renderings, answer your questions, and hear your feedback.

At the meeting, you can learn about the overall corridor vision and refined design features of the:
• New Portage Bay Bridge (such as bridge type and options for a bicycle/pedestrian path)
• New Montlake lid (such as functionality and connectivity)
• Non-motorized connections on and around the corridor in Seattle

You can also chat with staff about construction progress across the SR 520 corridor, including Eastside and floating bridge construction, upcoming West Approach Bridge North construction, and various mitigation projects.

• Thursday, Sept. 11
• 4:30 to 7 p.m.

• Montlake Community Center
• 1618 E. Calhoun St., Seattle
• Limited free parking is available at the community center.
• Bus routes: 25, 43, 48
SR 520 construction in Seattle begins next month – here’s how to stay informed

The SR 520 construction you’ve been seeing for the past three years on Lake Washington and the Eastside is about to arrive in Seattle. WSDOT recently signed a contract with Flatiron West, Inc. to build the highway’s West Approach Bridge North (WABN). It’s a 1.2-mile-long structure that will link Seattle’s Montlake area with the new SR 520 floating bridge. When the new west approach bridge opens in 2017, SR 520 will have six lanes of traffic from Montlake to Redmond, including transit/HOV lanes in both directions and a new, regional bicycle and pedestrian path crossing the lake.
We want to keep the public informed about all the construction activity that’s ahead in Seattle. One way we’ll do that is to send email updates about upcoming WABN construction work. You can sign up here to receive our emailed West Approach Bridge North Construction Update. Just enter your email address and then, under “Construction Reports” in the subscription list, check the box for “SR 520 West Approach Bridge North Project”.

Starting this fall, we’ll also be holding an open house and monthly public meetings, attended by WSDOT staff and the contractor, to share the latest on our construction work and answer questions. We’ll have more details soon about the time and location of these meetings.