State Route 99

Rendering of redesigned SR 99 in Snohomish County with dedicated bus and bike lanes.

WSDOT Offers Ambitious Multimodal Vision for Dangerous SR 99 Corridor

The proposal includes dedicated bike and bus lanes as well as pedestrian improvements.

January 7, 2026 - The Urbanist

Construction on a tunnel is visible next to the Seattle waterfront.

A Permanent Decline in Revenue Forecasted for the Tunnel Bertha Built in Seattle

Public transit isn't the only mode struggling to attract the expected number of users in 2022. State Route 99 in Downtown Seattle is also failing to live up to expectations and struggling to make ends meet.

August 4, 2022 - The Urbanist

Seattle Tunnel Route

Seattle's Most Dramatic Traffic Reduction Will Occur Next Month

There will be no road closures, no traffic bans, no loss of parking, and no new transit lines opening. Call it the "tolling effect" on Nov. 9 when motorists have to pay to drive through the two-mile State Route 99 tunnel that opened last February.

October 9, 2019 - KOMO News

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.

Top Books

An annual review of books related to planning.

Top Schools

The definitive ranking of graduate planning programs.

100 Most Influential Urbanists

The who's who of urbanism, according to Planetizen readers.

Urban Planning Creators You Should Know

A short list of voices on social, video, and podcasting platforms.