This document identifies and provides design guidelines for bridge scour
and stream instability countermeasures that havebeen implemented by
various State departments of transportation (DOTs) in the United States.
Countermeasure experience, selection, and design guidance are
consolidated from other FHWA publications in this document to support a
comprehensiveanalysis of scour and stream instability problems and
provide a range of solutions to those problems. Selected
innovativecountermeasure concepts and guidance derived from practice
outside the United States are introduced. Managementstrategies and
guidance for developing a Plan of Action for scour critical bridges are
outlined, and guidance is provided forscour monitoring using portable
and fixed instrumentation