Tunnel Picked for Seattle Viaduct Replacement

Officials in Washington have come to a consensus on plans to replace the Alaskan Way Viaduct, Seattle's damaged inner-city arterial. They've decided on a $4 billion tunnel, but the plans still need approval from the state legislature.

"Whether they can get the Legislature -- specifically, House Speaker Frank Chopp -- to endorse the most expensive option for replacing the vital Seattle arterial remains to be seen."

"The last time the viaduct battle came to a head, Chopp, D-Seattle, vigorously opposed anything but an above-ground replacement. He is credited with killing the tunnel plan the last time around."

"Since that time, he has invested energy designing and promoting an above-the-ground replacement that would have included a throughway and a shopping center -- all capped with a waterfront park."

"On Monday, Seattle Deputy Mayor Tim Ceis confirmed that a consensus had been reached to build a deep-bore tunnel, with an estimated cost of more than $4 billion."

Full Story: Viaduct choice: It's a tunnel

Comments

Comments

Real Cost Of Seattle Tunnel Option

"They've decided on a $4 billion tunnel, but the plans still need approval from the state legislature."

$4 billion is the initial estimate, but what is the real cost?

Boston's Big Dig, a similar project, was estimated at $2.8 billion in 1985 (in 1982 dollars), but over $14.6 billion ($8.08 billion in 1982 dollars) was spent by 2006.

The Big Dig will have to pay an additional $7 billion in interest, bringing its total cost to $22 billion.

Charles Siegel

Book cover of the Guide to Graduate Planning Programs 4th Edition

Thinking about Grad School?

New! 4th Edition of the Planetizen Guide to Graduate Urban Planning Programs just released.
Starting at $24.95

Prepare for the AICP Exam

Join the thousands of students who have utilized the Planetizen AICP* Exam Preparation Class to prepare for the American Planning Association's AICP* exam.
Starting at $209

City Coasters

Hand-drawn engraved maps of your favorite neighborhoods are divided up across 4 coasters making each one unique.
$36.00
City Plate table setting

New Arrival! City Plates

City downtown cores printed on gorgeous decorative collectible porcelain plates.
$50.00