Baluarte Bridge saddles in the pylons to form 152 suspenders in a two plane semi-fan layout. The tallest intermediate pier, P9, is high. It crosses a gorge in the Sierra Madre Occidental mountains with a clearance of below the deck, substantially taller than the Eiffel Tower. Its clearance is higher than that of the previous record-holder, France's Millau Viaduct, which has a clearance of . The bridge's central span, long, is also the longest cable-stayed span in North America, longer than that of the John James Audubon Bridge in St. Francisville, Louisiana. Construction on the bridge began on 21 February 2008. The
Millau had one of the major mediaeval bridges across the river Tarn. It had 17 spans, but after one poorly maintained span fell in the 18th century, the bridge was mostly demolished. Just one span remains, with a mill that is now an art gallery, as testament to this significant trading route from north to south across pre-Renaissance France. In 1999, José Bové, a local Larzac anti-globalisation activist demolished the Millau McDonald's as it was being built, in symbolic protest of the decision by the Court of the World Trade Organization to allow the United States to overtax the import of