For more than 20 years, CALTROP has helped to build infrastructure projects that get people where they are going by land, air or rail - bridges, highways, roads, airports and rail transit - by offering high quality services in program / project management, construction management, inspection, specialty inspection, risk management and public relations. Now, we are also helping people to communicate through our telecommunications division, which offers full design and construction services to the industry, and energize the world with our energy services division. 




I-15 / Duncan Canyon Road Interchange

The City of Fontana, in cooperation with the California Department of Transportation (Caltrans), is modifying the existing two-lane Duncan Canyon Road Overcrossing, which is located between the existing Summit Avenue and Sierra Avenue Interchanges, into a new four-lane interchange over Interstate 15 (I-15). This new interchange is being constructed in an effort to address the need for additional access to I-15 due to traffic volume increases, which will result from rapid growth in both population and industrial development projected over the next 25 years.



West County Connectors Project

After four-years of construction, the West County Connectors (WCC) Project is nearing completion. During the week of December 7th, the project team marked a major milestone with the opening of the I-405 / I-605 and SR-22 / I-405 carpool connectors. Drivers will now be able to travel in the carpool lanes from the Garden Grove Freeway (SR-22) to the San Diego Freeway (I-405) to the San Gabriel Freeway (I-605), and the reverse, without ever having to exit the carpool lanes. The WCC Project is aimed at easing congestion and enhancing safety along the most heavily travel