Bigge Lifts Cooling Towers in Downtown SF
Aug 3 2017
Prominent on the San Francisco skyline, Landmark Tower at One Maritime Plaza is a 26-story building that houses commercial office space, parking, gardens, and pedestrian sky bridges. Bigge was called upon by a Bay Area HVAC specialist to lift and set 2 new cooling towers onto the roof of this 490’ building.
The lift site, situated on a 2 lane street and between a pair of pedestrian bridges, required a carefully engineered approach. Due to absence of street plans at our disposal, field measurements were made onsite during the planning stages. Arriving at a weekend with a favorable window for weather conditions, Bigge’s crews trucked in and assembled a Liebherr LR1300 Crawler Crane with the help of a Link-Belt HTC8675 and an Xtreme XR3034 reachfork. A “jacknife” technique was used to construct 550 feet of boom and jib in the 350 feet of space available between the bridges. Components of the outdated cooling towers were retrieved from the rooftop to be hauled away, and the new components were lifted and set in place in under 48 hours, in time to free up the roadways for normal weekday traffic.