GMU provided blast and vibration consulting for Drill Tech Drilling and Shoring, Inc. during blasting of hard rock during construction of the arch bridge foundation. Our services included: 1) consulting during the design of the foundation blast plans, 2) review of blasting plans, 3) observations during blasting operations, and 4) vibration monitoring of the existing Big Bear Lake dam during blasting.

GMU provided blast and vibration consulting for Mitchell Engineering Company during blasting of hard rock during construction of a bypass tunnel. GMU provided: 1) blast consulting services during the design of the tunnel blast plans, 2) reviewed tunnel blasting plans, 3) observed blast operations and 4) provided vibration monitoring of water district improvements during blasting.

GMU provided vibration monitoring services for Shimmick Construction Company during the sheet pile installation operations along the San Diego Creek channel embankments to repair the channel invert. Sheet piles were driven with a vibratory hammer immediately adjacent to existing channel improvements and within 50 feet of residential structures.

GMU provided vibration monitoring services for the City of Temecula during foundation construction for the bridge expansion project. Our services included performing pre and post-construction surveys and performing vibration monitoring services during pile driving operations related to the bridge foundation. A historical hotel structure, city museum and apartments were monitored.