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Highways

West Seattle Bridge Cost-Benefit Analysis Leaves Lingering Questions

On October 20th, the Seattle Department of Transportation released the WSP-conducted Cost-Benefit Analysis (CBA) for the West Seattle High-Rise Bridge Safety Project, and a...

Replace Don’t Repair the West Seattle Bridge (and Add Rail)

The West Seattle Bridge was just 36-years-young when it cracked, sagged, and threatened to collapse, adding another layer of pollution to the already highly...

Late Addition Rapid-Build Option Alters Debate on West Seattle Bridge Replacement

Nearly seven months into the West Seattle Bridge closure, the City is finally closing in on a decision to replace or repair the bridge....
Downtown Bellevue viewed from the east with I-405 chasm setting off Wilburton. Seattle skyline and Lake Washington in the background. (

Bellevue Weighing Options for New I-405 Interchange in South Downtown

A new freeway interchange is likely on the way south of Downtown Bellevue. The City of Bellevue is partnering with the Washington State Department...
Pedestrians enjoy landscaping in this architect rendering.

Downtown Bellevue Needs a Bigger Freeway Lid

Removing I-405's NE 8th Street cloverleaf interchange would free up space to extend the planned "Grand Connection" lid northward. A dozen cars idle before a...

SDOT Inching Toward West Seattle Bridge Repair Plan

Four months into the West Seattle Bridge closure, we do have some answers but plenty of lingering questions, too. The Seattle Department of Transportation...
An aerial view of the proposed lid area of Interstate 5 connecting Wallingford and the University District in Seattle. (Credit: Northwest Urbanist)

UW Students Are Investigating a Proposed U District Freeway Lid

Complete the survey by May 17th and share your feedback on a I-5 freeway lid proposed between Wallingford and the University District. It may seem...

The West Seattle Freeway Should Not Be Rebuilt

Removing the West Seattle Bridge and not replacing the lost car capacity is the most responsible move for the climate and being prudent with...