Seattle's Alaskan Way Viaduct Construction Causes More Concerns

Excess sinking of the Seattle viaduct has continued with officials unsure of the cause

Apr 14, 2015

While the tunneling machine known as Bertha is out for repair there are still other concerns for the construction of Seattle's Alaskan Way viaduct - mainly sinking. The viaduct has already dropped one quarter of an inch and is continuing to deteriorate. While the viaduct is still safe for travel, continued sinking or a collapse are still a concern for officials.

(more on the Seattle viaduct sinking worries...)

Seattle Viaduct Sinking as Workers Try to Reach Bertha

Bertha Could Resume Tunneling Alaskan Way Viaduct in August

Latest in Business
Oommiithx Adobe Stock 1754798020
Don’t Get Spooked by Safety: 5 Frighteningly Common Jobsite Hazards
October 31, 2025
Bluebeam 2
Bluebeam Unveils Bluebeam Max Subscription with AI Tools and Expanded AEC Collaboration Features
October 30, 2025
Sensera Site Cloud
Sensera Systems Launches SiteCloud Insights to Deliver Real-Time AI Jobsite Summaries
October 30, 2025
Todd Stucke
Kubota Announces Leadership Changes in North America and Japan
October 30, 2025
Related Stories
[VIDEO] Watch How 14,260 Concrete Segments were Made for Seattle Tunnel's Outer Wall
Video Network
[VIDEO] Watch How 14,260 Concrete Segments were Made for Seattle Tunnel's Outer Wall
[VIDEO] Drone Flies Through Seattle's SR 99 Tunnel Bertha is Digging
Video Network
[VIDEO] Drone Flies Through Seattle's SR 99 Tunnel Bertha is Digging
Crews worked Monday, Aug. 24, 2015 to begin one of four crane operations to lower Bertha's cutter head and drive unit back into the ground. Once the giant tunnel boring machine is back together and tested, it will start tunneling again Nov. 23, nearly two years after it stopped 1,000 feet into the nearly two-mile tunnel project. This wide shot shows the giant 'super crane' used to first pull the 4-million-pound cutter head out of the ground and now to lower it back in.
Business
Bertha Cutter Head Going Back Underground for Seattle Tunnel Digging
Equipment rental businesses need to do their homework in order to get financing in this economic climate.
Rental
Do Your Homework to Get Financing
More in Business
Construction Safety
Don’t Get Spooked by Safety: 5 Frighteningly Common Jobsite Hazards
Don’t let safety slip into the shadows this Halloween. From fall protection to electrical hazards, here are five frighteningly common jobsite dangers every contractor should watch out for — and how to avoid them.
Oommiithx Adobe Stock 1754798020
Construction Technology
Bluebeam Unveils Bluebeam Max Subscription with AI Tools and Expanded AEC Collaboration Features
Bluebeam Inc.
Bluebeam introduces Bluebeam Max, an AI-powered premium plan for Revu, along with new integrations and updates that enhance collaboration, field connectivity and cross-platform workflows.
Bluebeam 2
Project Management
Sensera Systems Launches SiteCloud Insights to Deliver Real-Time AI Jobsite Summaries
Sensera Systems
Sensera Systems’ SiteCloud Insights is an AI-powered platform that delivers real-time visual summaries and safety, progress and equipment reports to construction teams.
Sensera Site Cloud
Infrastructure
PierTech Systems
PierTech Systems is a US-based manufacturer of helical piers, piles, anchors, and related foundation repair and construction equipment for residential, commercial, and industrial use.
Screenshot 2025 10 30 134217
Labor & Workforce Development
Kubota Announces Leadership Changes in North America and Japan
Kubota Tractor Corp.
Kubota North America names Todd Stucke as president effective January 2026, while Brian Arnold takes on a new role overseeing manufacturing operations across North America.
Todd Stucke
Lifting Equipment
Roadway Risks Set as Focus of IPAF Safety Campaign
International Powered Access Federation (IPAF)
The safety campaign "How to Stay Safe on or Near Roadways" brings awareness to MEWP operators working near U.S. roadways.
Working Near To Roads Safely Edited 150
Project Management
Linarc Offers Free 21-Day Trial and Lifetime Access to New Scheduling Software
Linarc
Construction tech firm Linarc is offering a 21-day full-platform trial and free lifetime access to its project scheduling software to help contractors evaluate project management tools.
Linarc 2
Construction Technology
How to Implement AI Automation in Construction Without Disrupting Projects
Jalasoft
AI automation can accelerate construction workflows, reduce rework and improve planning… if implemented gradually. Learn best practices for integrating AI without slowing live projects.
Monopoly919 Adobe Stock 214111900
Construction Technology
DT Research Unveils AI-Ready Rugged Tablets for Demanding Industries
DT Research, Inc.
DT Research has introduced a new line of rugged, AI-enabled tablets built for military, logistics, manufacturing and construction operations.
Dt Research Ai Tablets
Labor & Workforce Development
Survey: Construction Supervisors Under Pressure to Balance Safety, Mental Health on Jobsites
Vector Solutions
A Vector Solutions survey of 600 construction supervisors shows most feel responsible for safety and culture but lack training and resources to manage hazards and mental health issues on the jobsite.
Thebigland45 Adobe Stock 414173648
Business Services
Yooz, REPAY Holdings Partner to Expand Automated Vendor Payment Capabilities
Yooz
A new integration between REPAY and Yooz brings automated vendor payment solutions to more industries, helping organizations improve cash flow visibility and transition from paper checks to digital payments.
Itchaznong Adobe Stock 583072516
Construction Safety
Garrett Harley
Garrett Harley is the Director of Engineering and Construction Safety for Oracle Construction and Engineering.
Page 1 of 1721
Next Page