Owner: Union Pacific RR
Engineers: Parsons Brinkerhoff and David A. Hall Structural Engineering
Contractor: Stacy & Witbeck, Keywest Retaining; Portland Oregon
Details: Double track grade separation designed for 2 Coopers E-80 locomotive loads ( 80,000 Lb. per axel ~320,000 Lb per set of drivers). Maximum 30 ft. height with a total area of ~100,000 square feet.

Description: Several highly loaded wall structures built on a variable strength foundation materi- als near The Great Salt Lake in Ogden Utah. The walls were completed and put into service in 2006.