Originally constructed in 1940, the former railroad bridge over Grand Avenue on the Willard Munger State Trail needed to be updated to better serve multiple types of use. TKDA provided engineering services to rehabilitate the existing trail bridge to meet AASHTO Specifications and ADA Standards.
TKDA performed an existing bridge assessment and checked the capacity of the superstructure to carry the dead load of a proposed deck in addition to the live load of either pedestrians or H-15 vehicles. After evaluating deck replacement alternatives the cast-in-place concrete deck option was selected. Final design plans provided a 12 foot minimum clear trail width. The existing ornamental metal railing system was salvaged, refinished and installed on new concrete curbs to meet current design criteria.