the world's most visited architecture website
i

Sign up now and start saving and organizing your favorite architecture projects and photos

Sign up now to save and organize your favorite architecture projects

i

Find the most inspiring products for your projects in our Product Catalog.

Find the most inspiring products in our Product Catalog.

i

Get the ArchDaily Chrome Extension and be inspired with every new tab. Install here »

i

All over the world, architects are finding cool ways to re-use run-down old buildings. Click here to see the best in Refurbishment Architecture.

Want to see the coolest refurbishment projects? Click here.

i

Immerse yourself in inspiring buildings with our selection of 360 videos. Click here.

See our immersive, inspiring 360 videos. Click here.

All
Projects
Products
Events
Competitions
Navigate articles using your keyboard
  1. ArchDaily
  2. News
  3. Engineers Have a Solution for San Francisco's Sinking Millennium Tower

Engineers Have a Solution for San Francisco's Sinking Millennium Tower

Engineers Have a Solution for San Francisco's Sinking Millennium Tower
Engineers Have a Solution for San Francisco's Sinking Millennium Tower, Image via Wikimedia. Photo by Wikimedia user Hydrogen Iodide in public domain.
Image via Wikimedia. Photo by Wikimedia user Hydrogen Iodide in public domain.

As reports have emerged that San Francisco’s infamous sinking skyscraper, the Millennium Tower, is continuing to settle downward, engineers from LERA and DeSimone Consulting have unveiled a potential fix for the building’s woes.

Since construction began in 2005, the 58-story luxury condominium tower has sank approximately 17 inches downward and while leaning 14 inches to the North. And according to a new report from Arup Ground, the issue doesn’t appear to be resolving itself anytime soon: in the past 7 months alone, the building has sunk an additional inch and tilted a further two inches, causing cracking in the building to worsen.

Triggered to action, developer Millennium Partners brought in LERA and DeSimone to devise a solution that would return the building to its original siting and secure it against sinking, all while allowing the building to continue operating through the repair process.

The engineers’ solution would involve drilling 50-100 new foundation piles from the basement level into the bedrock 200 feet below – a strategy considered during the original construction process but ultimately deemed unnecessary. Existing piles embedded into the landfill carrying the structure's mass reach just 60-91 feet down.

The plan is estimated to cost between $100 million and $150 million, though who will ultimately foot the bill remains unclear, as a lawsuit between Millennium Partners, the homeowners assocation and the nearby Transbay Transit Center remains unresolved.

Learn more about the story here.

News via San Francisco Chronicle.

"See You in Court!": 9 of Architecture's Nastiest Lawsuits

What did Pritzker Prize winner Frank Gehry get when he designed the Stata Center, an exuberantly whimsical academic complex for MIT? A very large check, plus a major lawsuit, alleging negligence and breach of contract due to rampant leaks, mold, cracks, drainage problems and sliding ice. Sometimes the most inspired designs can go awry.

About this author
AD Editorial Team
Author
Cite: AD Editorial Team. "Engineers Have a Solution for San Francisco's Sinking Millennium Tower" 28 Jul 2017. ArchDaily. Accessed . <https://www.archdaily.com/876722/engineers-have-a-solution-for-san-franciscos-sinking-millennium-tower/> ISSN 0719-8884
Read comments

You've started following your first account!

Did you know?

You'll now receive updates based on what you follow! Personalize your stream and start following your favorite authors, offices and users.