DUMBO, an acronym for Down Under the Manhattan Bridge Overpass. “The Arch” is a glorious public space. A 65-foot-high tunnel through the Manhattan Bridge from Adams to Pearl Street. Came across this person under the Arch practicing their tai-chi on rainy Sunday morning. While out for my Sunday morning GOYA walk around Dumbo the rain picked up and out came the umbrellas. Some places stayed a little dryer than others under the bridge.