Sightline Project

Seattle's Great Viaduct Debate

As Seattle debates a deep-bore tunnel to replace the Alaskan Way Viaduct, Sightline examines the issue of potential cost overruns. The state legislature has made it clear it wants Seattle property owners on the hook—but the cost could be enormous. Read Sightline’s collection of posts on replacing the viaduct and what it means for Seattle residents.

Posts on Seattle's Great Viaduct Debate

Alaskan Way Viaduct: More Revenue Shortfalls Expected

Don't count on $200 million from tolls---unless you want massive traffic diversion.
on September 18, 2012 at 3:54 pm

News Flash: Drivers Avoid Tolls

Oh, NOW they tell us.
on June 28, 2012 at 5:31 pm

The Environmental Case Against the Deep-bore Tunnel

Six prominent environmentalists argue against Seattle's proposed deep-bore tunnel.
and on July 20, 2011 at 2:30 pm

The Tolled Tunnel: Almost An Earthquake?

on July 8, 2011 at 4:05 pm

Is The Tunnel Worse Than Nothing?

According to the state, a deep bore tunnel with high tolls means more street traffic than no tunnel at all.
on June 29, 2011 at 1:03 pm

Viaduct Diversion, By the Numbers

State models suggest that the deep bore will carry about a third of the existing Viaduct's traffic.
on April 29, 2011 at 10:10 am

Required Reading on the Tunnel

Dave Roberts interviews Cary Moon.
on December 15, 2010 at 12:45 pm

Sightline at Town Hall

A dialogue about the deep-bore tunnel.
on December 6, 2010 at 11:45 am

Did Eyman Just Kill the Deep-bore Tunnel?

1053 requires legislature to vote on tunnel funding. Again.
on November 18, 2010 at 10:05 am

Deep-bore Tunnel Bidders Get Sweetener

Worrisome sign that cost estimates are too low.
on October 20, 2010 at 12:40 pm