The original Bronx Whitestone was more elegant, but not as stable. Similar in design to the Tacoma Narrows (Galloping Gertie), it was reinforced after Tacoma Narrows collapsed. In the 40s, bracing was installed at the towers, as were the trusses that run above the roadway. In the mid 80s, a tuned mass damper was installed on the bridge to eliminate wind induced oscillations.
The problem now is that all the alterations have made the bridge too heavy for the cable system. Another project is underway to reduce the weight of the span. The steel trusses will be replaced with a composite material.