- For other meanings of "bridge" see bridge (disambiguation)
A bridge is a structure to cross an open space or gap. Bridges are mostly useful for crossing rivers, valleys, or roads by vehicles but people have also used bridges for a long time for walking. Bridges called highway overpasses are used to avoid traffic control.
History[change | change source]
The first man-made bridges were probably made from cut wood or stones.
Types of bridges[change | change source]
There are five major structural types of bridges:
Notes[change | change source]
- "Beam bridges". Design Technology. http://www.design-technology.org/beambridges.htm. Retrieved 2008-05-14.
- Glass, Amy. "Dubai to build world's longest arch bridge". Arabian Business. http://www.arabianbusiness.com/509621-worlds-longest-arch-bridge-for-dubai?ln=en. Retrieved 2008-05-14.
- Johnson, Andy. "Cable Stay vs Suspension Bridges". U.S. Department of Energy. http://www.newton.dep.anl.gov/askasci/eng99/eng99373.htm.