Engineers should look at the Linn Cove Viaduct on the Blue Ridge Parkway for ideas on how to solve a tricky situation.
“Engineers should look at the Linn Cove Viaduct on the Blue Ridge Parkway for ideas on how to solve a tricky situation.”
It was constructed from the pavement surface own, meaning each section was built with its far end temporarily unsupported. Construction worked down from each unsupported end to make a pier to support that end and to build the next section, and so on.
Temporary supports were also used along the way. See wikipedia entry.