Proposed Grade Separation and Flyover
Colton Crossing is the location where the two main rail routes serving Southern California cross at-grade in the City of Colton. Most trains leaving or entering Southern California use this at-grade rail crossing, which is a significant cause of congestion on the main lines of the UP and the BNSF according to the railroads.
In December 2006, the Alameda Corridor Transit Authority (ACTA) presented a feasibility study to analyze alternatives and costs for design and construction of an east-west structure, which would grade separate the BNSF and UP main line tracks at Colton Crossing. In addition, ACTA is preparing a forthcoming future report on a proposed north-south flyover to the south of Colton Crossing to reduce train crossing conflicts, which report will be evaluated by ACTA, UP, BNSF and the San Bernardino Associated Governments (SANBAG). SANBAG is conducting community outreach meetings to assist the project team with selecting the final build option. In November of 2011, work began on the grade separation project, with the final design being an east-west flyover of the Union Pacific tracks over the north-south BNSF tracks. Work is expected to take four years and the project is projected to cost $202 million. Skanska is the lead contractor on this project.
Read more about this topic: Colton Crossing
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