I-5/El Camino Real Ramp Modifications And Soundwall Implementation
In order to alleviate noise impacts from I-5 on San Clemente residents, ACT Consulting supported the development of the final design package for improvements to the southbound on-ramp from El Camino Real and implementation of a soundwall at the El Camino Real Undercrossing. As a subconsultant to TranSystems, ACT Consulting prepared the signing, striping, and electrical plans. The soundwall was constructed in two different segments along southbound I-5. The first segment was built along the mainline across the structure, while the second segment was build along the southbound on-ramp and connected to an existing soundwall on the I-5 mainline south of the ramp. The PS&E was prepared on an accelerated schedule in order to address resident concerns and to secure funding.
The project had many complexities, especially with the placement of the soundwall on the El Camino Real Undercrossing, a steel structure. The team worked with OCTA, Caltrans District 12, Caltrans Headquarters, and local agencies to allow for the use of Paraglas for the portion of the wall on the bridge, in an effort to ensure that it can sustain the added weight of the wall as well as deflections during construction. This alternative material was approved and was the first constructed within State right-of-way in California. The project was delivered on schedule and construction is complete.