Hamburger separately revealed that the building continues to tilt at the rate of three inches per year. “I don’t think there’s a lot of room here for on-the-job learning.” “This is a 50-plus story building, very heavy, in the heart of downtown San Francisco,” Peskin countered. Peskin turned to city officials, who assured him that was standard practice for such projects. And he basically did those as a design build to install the piles in which he determined the methods by which he would install them.” We specified that we needed piles of a given diameter and strength. “We did not tell them how to install piles. “The procedures for installing piles were basically the contractor’s prerogative,” Hamburger told city supervisors. In his remarks, Hamburger acknowledged for the first time that his team did not provide any initial guidance to Shimmick Construction, the fix contractor, on ways to limit the impact of the drilling and digging to install steel support piles. “We start this new year 2022 as we ended last year and many other years, with the Millennium Tower continuing to sink and tilt,” a clearly exasperated Peskin said before introducing fix engineer Ron Hamburger at the hearing. Monitoring data shows that 10 inches of that tilt and about 2 inches of settlement occurred during work on the so-called fix last year. Sign up for NBC Bay Area’s Housing Deconstructed newsletter. Get a weekly recap of the latest San Francisco Bay Area housing news.
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