Tower Crane Base Set at Mission Rock

The base of a tower crane is critical to its usefulness, capacity, and safe operation. Depending on several factors, including the job site location, configuration, and the type of construction taking place, the base of a tower crane can either be secured on a chassis with ballast weight or embedded into a concrete foundation. A job in San Francisco’s Mission Rock area called for the latter, as our crews delivered a base that would eventually anchor a Potain MR608 Luffing Tower Crane (above). The base was delivered to the site, offloaded, and carefully set in position by our technicians, making it ready for attachment to piers. Concrete was then poured to permanently secure the base, which will remain intact throughout the course of our work and eventually consumed by the building’s foundation upon completion. This crane works alongside another of our tower cranes, a Comedil CTT 721B-40 Flat Top (below). These cranes are essential to progress at this burgeoning location, situated across from Oracle Park.