A licensed engineer can help operators design a safe, appropriate timber bridge.
He was a licensed professional engineer in California and Massachusetts.
Two licensed engineers, contracted by the state, have said that it needs to be done.
He graduated from Georgetown University and was a licensed professional engineer.
"He was not a licensed engineer," the Mayor said, "and his fees were exorbitant."
City building codes require that a licensed engineer or architect design any scaffolding more than 75 feet tall.
"Only licensed engineers are equipped to make a roof-to-foundation structural and physical analysis," he said.
Clark became a licensed engineer in 1905 and worked as a civil engineer.
He is a licensed professional engineer in the State of Maryland.
Many of the association's members are licensed engineers who work aboard merchant marine ships.