Vaughn Viaduct Bridge Replacement Project
The Vaughn Viaduct Bridge project will replace the existing 100-year-old structure with a newly constructed bridge which will be classified for speeds of up to 40 miles per hour! In accordance with Federal Rail Administration (FRA) requirements, an assessment of the bridge was completed by CBR and our contracted engineering firm, Stantec, finding that the Vaughn Viaduct is structurally and functionally obsolete. The recommendation following this assessment was to completely replace the structure with a new bridge.
The new bridge will be a 5-span precast concrete girder structure. During construction, the existing bridge will be utilized for rail traffic on the existing tracks while the new bridge is constructed alongside. Once construction is complete, the rail line will be connected to the new bridge over the course of one weekend, and disassembly of the old Vaughn Viaduct bridge will commence. This technique will minimize disruptions in rail service – ensuring that rail freight continues to move in and out of the south coast.
Project Timeline: Design for the new bridge is complete. The Port is now finalizing contract documents, with plans to go out for bid at the end of April, awarding construction contracts in June of 2017. Construction is anticipated to take 12 months, with construction completion in June of 2018.
Benefits: The new bridge will meet current rail and seismic standards, improving overall safety and longevity for the line. All of the traffic on the line either travels over or switches across the Vaughn Viaduct -- without the Vaughn Viaduct, rail traffic and the goods it transports are unable to flow into or out of the south coast. Additionally, the new bridge is designed to accommodate unit train traffic which is essential for the future growth, development and long term viability of the line.
Project Location: The Vaughn Viaduct bridge crosses both Noti Creek and Vaughn Road in western Lane County at rail line Mile Post 667.40.