TIED ARCH BRIDGE

A 'tied arch bridge' is an arch bridge in which the outward-directed horizontal forces of the arch are borne by the bridge deck, rather than the ground or the bridge foundations. The bridge deck 'ties' the ends of the arch together, and is under tension, much like the string of a bow; therefore, this bridge design is sometimes called a 'bowstring arch bridge'. The elimination of horizontal forces at the abutments allows a tied arch bridge to be constructed with less robust foundations; this bridge type can be easily situated on top of elevated piers or in areas of unstable soil. In addition, since they do not depend on horizontal squeezing forces for their integrity, tied arch bridges can be prefabricated offsite, and subsequently floated, hauled or lifted into place.

Contents

Bridges of this type

Gallery of Tied Arch Bridge

Bridges of this type

★ 16th Street Bridge, Pittsburgh, Pennsylvania.

★ Abraham Lincoln Memorial Bridge

★ Big Creek Bridge, Lane County, Oregon

★ Blue Water Bridge, Port Huron, Michigan to Sarnia, Ontario

★ Mississippi River Bridge, La Crosse, Wisconsin

★ Daniel Carter Beard Bridge

★ Fort Duquesne Bridge

★ Fort Pitt Bridge

★ Fremont Bridge, Portland, Oregon

★ Hoan Bridge, Milwaukee, Wisconsin

★ John McLoughlin Bridge

★ Port Mann Bridge

★ Stari savski most, Belgrade

Gallery of Tied Arch Bridge