The Brooklyn Bridge (opened 1883) provides three dedicated walkways across its 1,834 m (6,016 ft) span:
Width: ~4.6 m (15 ft). Elevated above the roadway, accessed via stair/ramp at Centre St (Manhattan) or Tillary St (Brooklyn). Iconic views of downtown Manhattan, Statue of Liberty, harbor.
Width: ~4.6 m (15 ft). Mirror of north side. Access at same points. Slightly less crowded; views toward Brooklyn Bridge Park, DUMBO, Governors Island.
Width: ~3.7 m (12 ft). Two-way, separated from pedestrians by a raised concrete curb. Access via dedicated ramps (Adams St, Brooklyn; Centre St, Manhattan). Shared with e-bikes, scooters, maintenance vehicles.
~26 m (85 ft) including 6 vehicle lanes (3 each direction) between the walkways.
The promenade is a National Historic Landmark—one of the world's most famous urban walks.