Skip to Content
Streetsblog USA home
Streetsblog USA home
Log In
Streetsblog.net

Seattle Bridge Toll Eases Traffic. Will It Boost Transit, Too?

false

Located on a pair of peninsulas, the city of Seattle isn't so easy to reach from its eastern suburbs. Only two bridges cross Lake Washington. Newly-installed tolls across one of the two, the SR-520 bridge, have the potential to seriously reshape travel patterns in the region.

Already, traffic on the SR-520 bridge appears to have cleared up significantly. Reports Network member Publicola, "Not only is traffic on 520 itself 'a breeze,' but traffic seems to have eased on I-5, and perhaps I-405, the two north-south routes that connect 520 to parallel (and untolled) I-90, as well." That congestion relief is coming during the Wednesday morning rush, the busiest traffic time of the week.

It's too early to say whether the tolls' traffic-busting effects will last, but congestion relief on three major highways would be big news. The possible impact of the tolls, though, could be even larger than a speedier drive into Seattle. Explains Sightline Daily's Clark Williams-Derry, whose post inspired Publicola's article:

I have to wonder whether the tolls on 520 are reducing overall traffic volumes across Lake Washington, rather than just shifting drivers from 520 to I-90. It’ll be interesting to see how the numbers fall out over the next few weeks—but if we’re paying for new roads with tolls, and tolls reduce traffic volumes, then the region might have to rethink whether we actually need all of the expensive new road projects that we’re planning.

If commuters headed into Seattle from across the lake are switching to the bus instead of just finding a new route to work, the new tolls could be the first step toward a more transit-friendly Seattle.

Elsewhere on the Network: Cyclelicious catches House of Representatives Majority Leader Eric Cantor (R-VA), who wants to strip federal funding from programs like bike-share and safe routes to school, enjoying what looks like a beautiful bike ride. The Hard Drive profiles a new service that helps Portland homeowners rent out their unused driveways. And everyone's talking about a Freakonomics forum on the profitability of Amtrak.

Stay in touch

Sign up for our free newsletter

More from Streetsblog USA

Kansas City is Again Expanding Its Once-Mocked Streetcar

The Midwestern city is showing the country that investing in transit really can work wonders. 

February 25, 2026

Wednesday’s Headlines Will See You in Court

The lawsuits are already starting over the Trump administration's decision to stop regulating greenhouse gas emissions.

February 25, 2026

Tuesday’s Headlines Went the Wrong Way

Multi-lane one-way streets: bad. Single-lane two-way streets: good.

February 24, 2026

What It Would Take to Map Every Sidewalk In Your State

States and tech companies keep detailed records of virtually every driving lane in America — but not every sidewalk. Until now.

February 24, 2026

New Calif. Legislation, Backed by Bike Safety Groups, Proposed to Regulate E-Motos/E-Bikes

Electric bicycles are transforming how Californians get around, but the rapid rise of high-powered electric devices has created confusion that puts people at risk,” said Marc T. Vukcevich, Director of State Policy for Streets For All.

February 23, 2026

The Wonders of Biking in Taiwan

One of San Francisco's most notable urbanists explores Taipei's night markets and bike infrastructure. He wonders: can San Francisco adopt their biking culture?

February 23, 2026
See all posts