Moveable Bridges

*Home* *Northwest Bridges* *Northeast Bridges* *Midwest Bridges* Indiana Covered Bridges *Suspension Bridges* Truss Bridges Cable-Stay Bridges Arch Bridges *Moveable Bridges* *Cantilever Bridges* Girder Bridge Pontoon Bridge *Piers* *Abutments* *Connections* *References*	Broadway Bridge Portland, OR Type of Bascule Bridge	Moveable Bridges Moveable bridges open to allow boats that are taller than the bridge to navigate the waterway. There are numerous types of moveable bridges: bascule or drawbridges, swing span bridges, and lift bridges. Bascule bridges open in the center. They pivot similar to a "see saw". Swing span bridges rotate on a center column. Lift bridges move vertically to allow boats and ships to pass under the bridge.
	First Avenue Bridge Seattle, WA Bascule Bridge	Hawthorne Bridge Portland, OR Lift Bridge	Umpqua River Bridge Reedsport, OR Swing Span Bridge
	Marine Parkway Bridge New York, NY Lift Bridge



	All photos by Brenda Campbell Teacher at Centerville High School, Centerville, Indiana.