We deploy vibrating wire piezometers, inclinometer casings, and survey prisms on every active excavation site in Orange California. The alluvial soils here sit above old river channels, so groundwater behavior shifts block by block. Our team installs the sensors before the first bucket of soil is removed. That baseline data catches early movement. For retaining walls near property lines we pair this monitoring with a geotechnical instrumentation plan that tracks wall deflection in real time. We also use settlement points on adjacent structures to verify that excavation-induced ground loss stays below 15 mm.
Real-time inclinometer data every 15 minutes caught a 22 mm deflection spike during a water main break, preventing structural damage to the adjacent parking garage.
