Client | County of Riverside Transportation Department

2021 - Present | $77 Million

The project will include a railroad grade separation of the existing Union Pacific Railroad (UPRR) line at the crossing of Jurupa Road. The depression of Jurupa Road under the existing UPRR Mainline will result in lowering Felspar Street to the east of Jurupa Road. The improvement will include the construction of a roadway bridge for Van Buren Boulevard, a railroad bridge for UPRR tracks, a temporary railroad shoofly, temporary shoring systems, retaining walls, storm drainage system, pump station, landscaping, roadway improvements, traffic signals, street lighting, utility relocations along with associated removals and protection of existing facilities. A portion of the roadway along Jurupa Road will be waterproofed and dewatering is expected to be necessary for its construction as well as for the construction of the bridge.

Scope of ZTC work successfully completed the scope of Tier-1 Materials Source Inspection in accordance with Caltrans guidelines for this project, which includes two key components: steel bridge fabrication and precast prestressed girders fabrication. Our Quality Assurance (QA) Team, led by the Structural Material Representative (SMR), ensured that the fabricator was certified under the AISC Quality Certification Program and worked closely with the Construction Management (CM) Team to timely review essential submittals like Steel Bridge Shop Drawings and Welding Quality Control Plans. In addition to hosting a pre-weld meeting to discuss project-specific fabrication requirements, our team also established a dedicated QA log folder at the fabricator's facility. During the fabrication process, we conducted rigorous on-site inspections to verify material identification, equipment calibration, and welding consumable storage, among other elements. The SMR also made random facility visits for additional QA verification and acted promptly to resolve any issues that arose during the fabrication.