The Dana Point Pedestrian Bridge was a major part of the PCH Traffic Congestion Relief Project. This project included numerous street improvements in addition to the award-winning pedestrian bridge that spans Pacific Coast Highway. GMU provided investigation, design, and construction services, including inspection and testing during grading and construction.

GMU served as the lead geotechnical consultant during planning and construction of the Laguna Niguel Metrolink Station, a new multi-modal transportation center for South Orange County that included passenger platforms, a pedestrian underpass, track realignments and parking and drainage improvements. GMU performed a geotechnical investigation and prepared geotechnical maps and cross sections to guide grading and construction of the facility. GMU also provided geotechnical recommendations for shoring, testing and dewatering services.

GMU provided the geotechnical design services for the Project Report and final design (PS&E) for Cow Camp Road, a new County arterial roadway in Rancho Mission Viejo. The project includes a 1,420-foot long bridge over Chiquita Canyon. During construction, GMU provided all geotechnical observation and testing, plus materials testing and special inspection for the bridge.

GMU worked with the County of Orange and Caltrans to provide geotechnical, foundation and pavement design for widening the heavily used Ortega Highway near San Juan Capistrano. Plans call for widening the two-lane road to four lanes and constructing numerous retaining and sound walls as well as widening an existing bridge. To formulate the plan, GMU prepared geotechnical design, materials and foundation reports, and closely coordinated with a number of public agencies. During construction, GMU performed geotechnical observation and testing for grading activities, soil cement construction, and a jet grouting/soilcrete revetment. GMU also provided rebar testing, welding inspections, and quality assurance testing for asphalt paving in accordance with Caltrans Section 39 specifications. In 2011, the project was awarded the Project Achievement Award by ASCE and the Award of Excellence by ACEC.

GMU has worked with Rancho Mission Viejo and the County of Orange to provide geotechnical design and construction services for the road and bridge widening on Antonio Parkway and a portion of La Pata Avenue. The project includes widening this County arterial highway from 4 lanes to 6 lanes, plus widening of the existing 780-foot long, 5-span bridge over San Juan Creek. For the bridge widening, GMU’s Foundation Report included detailed analysis and recommendations for liquefiable soils that influenced bridge foundations.