Caltrans District 7, Interstate 710 Pavement Rehabilitation and Bridge Widening Project

PROJECT SCOPE

All northbound lanes between Bandini Boulevard and the Interstate 5 / 710 Interchange are being replaced. The Hobart Yard Bridge, which spans the BNSF16 rail tracks and several LA Metro lanes is also undergoing widening. I-710 has five non-standard lanes (11 feet wide) in each direction and is being widened to five standard lanes (12 feet wide) with 8-foot wide shoulders (inside and outside). In addition, the median shoulders are being repaved with JPCP, and the median barrier will be upgraded to meet current standards.

OUR ROLE

G3 Quality has been delivering quality control inspection, sampling, and testing services on the project since construction began in 2019. Our scope covers quality control management for Class 3 base 3, Lean Concrete base, JPCP, JPCP-RSC, CRCP, CRCP-RSC, and structural concrete as well as the developing the rapid set mix designs for the project. Major features of the project include first the removal of 30,000 cubic yards of concrete, 3,000 tons of asphalt, and 5,000 tons of steel. New materials brought to the project include 30,000 cubic yards of base materials, 40,000 cubic yards of concrete, 10,000 tons of asphalt, and 10,000 tons of steel. Also, client Flatiron set up a batch plant at the Bandini Boulevard off-ramp in Vernon to produce concrete for repaving, which is using concrete removed from the existing site structures, barriers, and pavements.

OUR ADDED VALUE

Our contributing values to this project include our well-recognized Caltrans experience, demonstrated ability to successfully manage complex construction schedules (including night and 25 to 55-hour weekend shifts), and collaboration with many construction, engineering, and program management entities – all to ensure quality materials and practices are implemented to successfully complete this important regional project.

SERVICES PERFORMED: