The City of Corvallis is replacing a four-span timber trestle bridge that spans Oak Creek in southwest Corvallis. Bridge inspections uncovered rot in the timber piling and stringers rendering the original bridge structurally deficient and load restricted. The bridge is located on SW Morris Avenue and provides local access to residences and several apartment complexes that house Oregon State University students.
The new bridge will be an 84-foot long, 39-foot wide single-span, pre-stressed concrete structure supported on 16-inch diameter, driven pipe piles. Foundation Engineering completed two deep borings at each abutment, laboratory testing, pile analysis and design, and developed recommendations for site preparation and foundation construction. Construction began in July 2015 and expected to be completed in October, 2015.