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
Le Pouget (power station) the south of the river the land rises again to over 600 m. The area is called Les Raspes de Tarn- 30 km to the east is the A75 autoroute and the Viaduc de Millau which crosses the Tarn and Dourdan at the level of the plateau. Further east is the town of Millau and the Karst landscape of the Gorges du Tarn. The impervious granites of the Lévézou make this a suitable location for water capture. The catchment area of Le Pouget is extensive. The Alrance valley was dammed at Villefranche-de-Panat, creating the 197 hectare Lac de Villefranche-de-Panat. The