Lake, Pond & Channel Dredging FAQs

The three primary methods are targeted hydraulic dredging, lake and channel hydraulic dredging, and mechanical dredging. The best option depends on sediment type, waterbody size, access, and project goals.

Targeted hydraulic dredging removes sediment from specific problem areas using suction equipment and pumps it to filter bags or a dewatering site. This minimizes disturbance and can delay or reduce the need for full-lake dredging.

This method uses high-capacity dredges to remove sediment across large areas or channels and pump it as a slurry to settling ponds or dewatering sites. It is ideal for restoring depth and circulation in heavily silted lakes. 
 

A holding or settling pond is critical because it allows the sediment-water mixture to separate. As the slurry enters the holding pond, solids settle to the bottom, and clean water flows back into the lake. Without a properly designed holding pond, the dredging process would create turbidity and reduce water quality instead of improving it.

No, targeted hydraulic dredging often uses geotextile filter bags instead of settling ponds. These capture solids while allowing clean water to return to the lake. 

Mechanical dredging uses excavators or clamshell buckets to physically remove sediment from the lake bottom. It is best for coarse material, shallow areas, or locations where hydraulic dredging is not feasible. 
 
 

Dredging restores proper depth for navigation, improves water clarity, reduces algae and invasive weeds, and strengthens long-term ecosystem health, making the waterbody safer and more enjoyable.

The sediment-water mixture is pumped into a designated settling area where solids separate naturally. Depending on its composition, the sediment may be repurposed or safely disposed of.