Erdman Anthony performed an in-depth structural inspection, load rating, and
rehabilitation design of the Middletown & Hummelstown railroad bridge over
Swatara Creek. The historic 3-span bridge was built in 1890 and consisted of
riveted deck-plate girders with cut stone masonry piers and abutments.
Key project features included:
In-depth condition inspection of all structural components and degree of
Load rating with various load case scenarios, impact factors and speed
Short- and long-term repair recommendations to maximize the structure's
Recommendation of temporary repairs to the deteriorated deck timbers to
allow for safe operation of slow-ordered traffic.
Design of a permanent deck replacement with timbers sized to match the load
capacity of the steel superstructure.
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Erdman Anthony is a multidisciplinary firm specializing in infrastructure engineering and support services.
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