DESCRIPTION: The City of Corvallis replaced a four-span timber trestle bridge spanning Oak Creek in southwest Corvallis. The bridge is located on SW Morris Avenue and provides local access to residences and several apartment complexes that house Oregon State University students. Bridge inspections uncovered rot in the timber piling and stringers rendering the original bridge structurally deficient and load restricted. The new bridge is an 84-foot long, 39-foot wide, single-span, pre-stressed concrete structure supported on 16-inch diameter, driven pipe piles.
SERVICE: 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 was completed in October 2015.