Analytical and Field Investigation of Roma Suspension Bridge

The Roma-Ciudad Miquel Aleman International Suspension Bridge is a historic unstiffened suspension bridge between Texas and Mexico with a 192m (630ft) main suspended span, originally constructed in 1928. In 1997, the bridge was inspected and a full-scale nondestructive load test was conducted. The resulting experimental data are evaluated and compared to the results of analyses by finite-element method modeling. The history of the bridge is reviewed, with emphasis on modifications and retrofits to the structure. The unique behavior and attributes of unstiffened suspension bridges are discussed in the specific context of this particular bridge.