This multi-phase, multi product project is located near the San Francisco Bay in Foster City. An area notorious for deep bay mud and significant settlement problems. Cellular Concrete was used in several different ways. Another contractor installed lightweight pads under several multi-family structures. Throop Cellular installedcellular under streets and landscaping. Throop Cellular also backfilled the utility trenches that were excavated under the new buildings, replacing the excavated cellular concrete. Several contracs also occurred in the surrounding streets for utility installation backfill.