Estimation Of Bridge Scour Using Hec 18 And Bd 97/12(a Case Study Of Twin Bridges Along Benin - Ofuso - Ore - Ajebandele- Shagamu Dual Cariageway In Ondo State)

ABSTRACT A bridge is a structure built to span physical obstacles without closing the way underneath such as a body of water, valley, or road, for the purpose of providing passage over the obstacle. There are many different designs that each serve a particular purpose and apply to different situations. Designs of bridges vary depending on the function of the bridge, the nature of the ten-ain where the bridge is constructed and anchored, the material used to make it, and the funds available to build it. Scom occurs due to the effect of erosive action of flowing water, removing and carrying awa…