SCOUR CHAIN EMPLOYMENT IN GRAVEL-BED RIVERS

The dynamics of river beds can be assessed from scour and fill data ob tained from scour chains. Chains have not been used extensively in gra vel bed rivers due to a variety of employment difficulties. Chain inse rtion, anchoring and relocation can be determined with minimal manpowe r by utilising a set of tested employment methodologies. These are dec ribed in sufficient detail to allow fluvial geomorphologists, ecologis ts and river engineers to more commonly utilise chains in studies of r iver stability and river response.