When waters become too shallow or polluted with mud, silt and organic detritus, mechanical silt removal may be required.
The A.G.A Group’s first method of choice is to drain the lake prior to removing the silt by excavation. The drier the silt, the easier it is to dispose of, keeping haulage to a minimum.
Where utilised as backfill to any new revetments being installed the dried material is much more stable.
We also carry out desilting by underwater dredge pumps only after discussions with clients have excluded other practicable and cost effective alternatives. It must be borne in mind that material removed from site may require EA authority before disposal. A.G.A. can incorporate these approvals into any project planning.