Seattle Freeway Replacement Plans Whittled to Two Options

Planners and officials in Seattle have whittled down the list to just two ideas for replacing the city's damaged inner-city viaduct. Washington Governor Christine Gregoire reportedly wants a final decision by the end of the year.

1 minute read

December 15, 2008, 5:00 AM PST

By Nate Berg


"Transportation planners from the state, King County and the city of Seattle presented the governor and other elected officials with two options:

• A "surface and transit" plan that features three southbound lanes on Alaskan Way and three northbound lanes on Western Avenue.

• An elevated bypass highway that has two lanes in each direction, running side by side on independent bridge structures - the cheapest of the highway scenarios, the state says. It would include a Western Avenue exit to Belltown, Seattle Center and Interbay."

"The surface-transit option is estimated to cost $3.3 billion, and the elevated version $3.5 billion. That's higher than earlier estimates because improvements to Interstate 5, local streets and transit have been added."

Friday, December 12, 2008 in The Seattle Times

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

October 28, 2026 - Zachary Whalen

A car drives through a puddle, making a large splash. Rain pours down.

California plans to bury El Niño’s downpour

If the state plays its cards right, it may be able to store a billion acre-feet of El Niño’s water in aquifers.

October 28, 2026 - Grist

Lake Powell with much of the water evaporated.

Desperate measures: Advocates weigh draining Lake Powell to fill Colorado River

Draining the reservoir could reduce evaporation losses by a couple hundred thousand acre-feet.

October 30, 2026 - Yale Environment 360

Nithya Ramen talks to an older man. She is smiling and wearing a yellow dress. They are both outside.

Los Angeles just elected an urban planner as its mayor

Transportation analysts are optimistic that Raman will be more aggressive in addressing transit issues than Bass.

November 7 - Los Angeles Times

Mamdani behind a microphone, in front of a snowbank

Mamdani’s pied-à-terre tax survives legal challenge

A panel of judges found that the plaintiffs failed to demonstrate injury as a result of New York City's implementation of the tax.

November 6 - CNN

A road in north eastern Nebraska with power lines on either side, and grassy fields.

Eastern Nebraska is running out of electricity

Data centers and electrification are straining eastern Nebraska’s grid, throttling economic development.

November 6 - Grist

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.