HALCROW GROUP OF THE UK HAS advised on sedimentation problems worldwide. Last year it concluded a study into the sedimentation of UK reservoirs for the Department of the Environment, Food and Rural Affairs ( DEFRA ). The report, which is now on the DEFRA website, covered a

variety of issues including;

•Rates of sedimentation.

•Sediment release after dam failure.

•Methods of reducing sediment inflow.

•Removal of sediment deposits.