The amount of cargo handled at the Ports of Los Angeles and Long Beach is expected to more than double by 2020. Such growth provides significant economic opportunities for Southern California and the nation. However, it also presents challenges to road and rail infrastructure capacity, regional air quality, and traffic safety. Colton Crossing is the location where the two main rail routes serving Southern California cross at-grade in the City of Colton. Virtually all trains leaving or entering Southern California use this crossing. This at-grade rail crossing is a major cause of congestion on the main lines of the Union Pacific Railroad ("UPRR") and the BNSF Railway Company ("BNSF"). Alternatives for grade separating the crossing were explored in the past. The rail crossing location is constrained by the adjacent I-10 Freeway, rail connections and adjacent urban development. Metrolink has long range plans to expand commuter rail service from San Bernardino to Riverside and other parts of the region. However, due to freight congestion at Colton Crossing, expansion of commuter services is problematic.
ACTA was selected by UPRR and BNSF to conduct a feasibility study to analyze alternatives and costs for design and construction of an east-west structure, which would grade separate the BNSF and UPRR main line tracks at Colton Crossing. In addition, a north-south flyover was evaluated to the south of Colton Crossing to reduce conflicts of UPRR trains crossing the BNSF San Bernardino Subdivision. The purpose of the study was to define the preferred project concept as well as the required staging to support operations during construction, and project costs.
The final study was to be used to revise and update the existing Colton Crossing Project Study Report (PSR) on file with the California Department of Transportation and to provide input to a future Project Report/Environment Documents (PR/ED), to be developed by San Bernardino Associated Governments (SANBAG).
The study was delivered to SANBAG by ACTA on behalf of the railroads on December 15, 2006. By 2012, the environmental work was completed, the project was fully funded, and construction was to begin.