Bluff Dale Suspension Bridge relocated in 1934, upstream and extended from . The bridge was added to the National Register of Historic Places on December 20, 1977. The bridge is on Preservation Texas' 2009 list of most endangered places due to its poor condition and lack of funds for restoration. It was closed to vehicular traffic in 1989 because of its advanced state of deterioration. Despite the name given in Historic American Engineering Record documentation, the Bluff Dale Suspension Bridge is actually a cable-stayed structure. Its deck is suspended from multiple layers of stay cables radiating from the towers, some terminating at the deck
Pontoon effect side than the center of buoyancy can go. At this point, the righting force will disappear, replaced by a turning moment in the opposite direction. This can capsize the vessel at the point at which one pontoon is completely submerged. When using twin lateral pontoons, each pontoon should have enough buoyancy to bear the load of the entire vessel on its own. If the vessel is so heavy that either pontoon is mostly submerged when no lateral force is applied, it will be vulnerable to the pontoon effect. If sufficient lateral force arises (such as wind or shifting load), the