Project Description

Location: Rialto, CA
Value: $40 Million
Completed: 2007

Project Overview

CALTRANS selected Coffman Specialties, Inc. to complete two projects on one of the busiest freeway areas in the world, the I-15/215 separation near Rialto, California, 60 miles east of Los Angeles. Both required the integration of multifunctional traffic handling strategies: lane closures, alternate directional flow and moveable barriers.

The projects involved the removal and replacement of existing concrete pavement as well as the construction of additional lanes, widened medians, a widened bridge and other work. To minimize lane closure time to the public, CSI used a variety of concrete mixes to reduce curing time. Existing concrete was removed with non-impact methods during weekends only, when traffic would be lighter. New concrete was poured and the lanes reopened to traffic by 5am on Mondays.

By reducing actual lane closures by 30-40% of the amount allowed by the contract and using design and construction efficiencies, CSI greatly reduced the cost to CALTRANS and to the public. They were awarded the maximum incentive bond for each project, $500K and $560K respectively, as well as won recognition for their integration of constructability applications, innovative techniques and public awareness of the actual work schedule.

Quick Facts

  • Major construction on one of the main entry/exits to Los Angeles.
  • Over $1 million in incentive bonds earned.
  • Projects were 150 and 100 days respectively.
  • Lane closures reduced by 30-40%.
I-15 I-215 Kenwood and Devore
I-15 I-215 Kenwood and Devore