MYNORTHWEST NEWS

$93M to demolish the Alaskan Way Viaduct, complete other key projects

May 17, 2018, 10:38 AM | Updated: 10:59 am

viaduct, Alaskan Way Viaduct closure...

(WSDOT)

(WSDOT)

It will cost the state $93.7 million to demolish Seattle’s aging Alaskan Way Viaduct and wrap up other critical infrastructure projects related to the city’s new tunnel.

RELATED: Bye Bye Battery Street Tunnel

On Wednesday, the state selected Kiewit Infrastructure West Co. as the contractor. The contract includes design and construction services.

Project details include:

  • Removing the Alaskan Way Viaduct
  • Removing the Columbia Street and Seneca Street ramp structures
  • Decommissioning the Battery Street Tunnel, removing utility and mechanical systems, sealing the entrances and filling the tunnel
  • Raising Aurora Avenue North to grade between Harrison Street and Denny Way, rebuilding the street, and reconnecting Thomas and John streets across Aurora Avenue North
  • After viaduct demolition is complete, restoring waterfront roadways, sidewalks, street lighting and other elements to a temporary condition until the City of Seattle builds the new waterfront

The state mandates the work is finished in less than nine months and no cross streets can be closed for more than 30 days at a time. WSDOT aims to move Alaskan Way from under the structure. It wants to keep one lane open to keep goods and people moving.

RELATED: Explore the Battery Street Tunnel’s secret room

Demolition of the viaduct is expected to happen in 2019, after the new tunnel opens to traffic. The new tunnel could open by October.

MyNorthwest News

Image: The awnings of a store advertise the sale of lottery tickets, including Mega Millions and Po...

Steve Coogan

Lottery jackpots update: Powerball prize up for grabs after $1.1B Mega Millions ticket sold

A lottery jackpots update: The Powerball prize reached an estimated $865 million ahead of Wednesday night's drawing.

6 hours ago

Photo: The Judge Patricia H. Clark Children and Family Justice Center....

James Lynch

King County’s plan to close youth detention center met with fierce backlash

The King County Law and Justice Committee received a final report on Executive Dow Constantine's plan to close a youth detention center.

7 hours ago

Image: A cargo ship is stuck under the part of the structure of the Francis Scott Key Bridge after ...

Associated Press

Authorities identify 2 bodies recovered at site of Baltimore bridge collapse

A major bridge in Baltimore snapped and collapsed after a container ship rammed into it early Tuesday, and several vehicles fell into the river below.

9 hours ago

Photo: Mountaineer Jim Whittaker has died at 95....

Gene Johnson, The Associated Press

Lou Whittaker, among the most famous American mountaineers, has died at age 95

Lou Whittaker, a legendary American mountaineer who helped lead ascents of Mount Everest, K2 and Denali, has died at age 95.

9 hours ago

File photo: Former Sen. Joe Lieberman speaks in Washington on Jan. 18, 2024....

Associated Press

Former Sen. Joe Lieberman, Democrats’ VP pick in 2000, dead at 82

Former U.S. Sen. Joe Lieberman of Connecticut, who nearly won the vice presidency on the Democratic ticket with Al Gore in 2000, has died.

10 hours ago

Image: A Tacoma teen was shot outside her Tacoma Hilltop area apartment over the weekend....

Heather Bosch

Estranged boyfriend suspected in Tacoma teen’s death turns himself in

We're learning more about the man who's accused of fatally shooting a teenager outside her Tacoma Hill Top area apartment over the weekend.

10 hours ago

$93M to demolish the Alaskan Way Viaduct, complete other key projects