https://www.asce.org/about-civil-engineering/history-and-heritage/historic-landmarks/duluth-aerial-lift-bridge
Duluth Aerial Lift Bridge | ASCE
The Duluth Aerial Ferry/Lift Bridge was the first transfer bridge built in the United States and the only stiff-trussed transfer bridge ever constructed. The...
aerial lift bridgeduluthasce
https://casago.com/twin-ports/sightseeings/aerial-lift-bridge/
Aerial Lift Bridge
Aerial Lift Bridge rises 340 feet into the air, boasts a Neoclassical design, and offers an impressive light display at night.
aerial liftbridge