After snags and a redesign, the team working on arresting significant future settlement of the 645-ft-tall condominium tower has declared the $100-million fix a success.
Using a modified method, Shimmick’s Legacy Foundations restarted work on the troubled perimeter pile upgrade of the ailing Millennium Tower in San Francisco.
Coverage related to the COVID-19 pandemic continued to attract the most page views, but there were also several engineering failures that garnered much attention as well.
The structural engineer for the tower's perimeter pile upgrade has proposed a scheme to reduce the number of piles and speed the delayed project to completion by the end of 2022.
There was no measurable settlement during the Dec. 1-3 drilling for the second permanent pilot pile installed at the northwest corner of the troubled Millennium Tower in San Francisco, says Ronald O. Hamburger, engineer-of-record for the perimeter pile upgrade designed to stem settlement of the 645-ft-tall residential condominium.
By installing a pilot pile for the settling Millennium Tower's troubled foundation repair, Shimmick Construction hopes to prove the efficacy of revised construction methods so that work can continue without triggering accelerated building settlement.