Home / Environment / Miles Over Water: USA's Epic Bridge Journeys Explored
Miles Over Water: USA's Epic Bridge Journeys Explored
22 Jun
Summary
- Louisiana boasts most of America's longest bridges due to its geography.
- The Lake Pontchartrain Causeway is nearly 24 miles long.
- Bridges connect distant communities, often over expansive water or wetlands.
Most bridges are quickly forgotten, but America's longest are different, stretching for miles over water and vast landscapes. Louisiana, with its extensive network of bays, swamps, and marshes, features prominently among these engineering feats. The nearly 24-mile Lake Pontchartrain Causeway, connecting Mandeville and Metairie, held a long-standing record as the world's longest continuous bridge over water.
Another Louisiana giant is the Manchac Swamp Bridge, nearly 23 miles long, carrying Interstate 55 over a vast swamp system. The Atchafalaya Basin Bridge, also on Interstate 10, spans the largest river swamp in the U.S. Virginia's Chesapeake Bay Bridge-Tunnel uniquely combines elevated roadways with submerged tunnels, crossing the mouth of the bay.
Other notable long bridges include Alabama's Jubilee Parkway across Mobile Bay and California's San Mateo-Hayward Bridge spanning San Francisco Bay. Florida's iconic Seven Mile Bridge in the Keys offers a distinctive driving experience over open water. These structures are vital for transportation and highlight human adaptation to diverse and challenging environments.
