Scour chain employment in gravel bed rivers

The dynamics of river beds can be assessed fromscour and fill data obtained from scour chains. Chains have not been used extensively in gravel bed rivers due to a variety of employment difficulties. Chain insertion, anchoring and relocation can be determined with minimal manpower by utilising a set of tested employment methodologies. These are decribed in sufficient detail to allow fluvial geomorphologists, ecologists and river engineers to more commonly utilise chains in studies of river stability and river response.