Diagram and 3D animations about how water flows through scour holes, causing bridge collapse.

Detailed report by the 1998 European Scanning Summary on the effects of scour on river structures, how to prevent scour and how to deal with scour.

Single page with brief explanation of scour, and one photograph.

Journal article about scour and scour assessment in Pennsylvania, with diagrams and drawings.

Discussion about the occurance of scour and how to deal with it. Contains photographs and diagrams.

Large single page with several photographs and diagrams.