RRP performed PS&E for direct connectors and the widening of mainlines along a freight corridor. Our team analyzed as-built geometrics against previously developed geometrics for compatibility with current design standards and then redesigned horizontal and vertical profiles to accommodate as-built conditions.

The revised geometrics were incorporated into updated schematics, and RRP prepared an interstate access justification report with separate PS&E packages for the remaining five direct connectors. We provided engineering services through six design teams who followed a QC/QA plan throughout development. This project adjoins a reconstruction and widening project to the south that was scheduled to be let eight months after RRP’s..

We immediately began technical work sessions with the southern project team to ensure that construction phases and steps aligned between projects. A master TCP sequence was developed, with RRP leading the geometrics technical review to ensure cross slopes, alignments and profiles matched. Our services were expanded to combine three PS&E packages into one for letting.