Dredging

Dredging

The process of dredging for shoreline restoration is to excavate an area underwater with the purpose of gathering bottom sediments and using it to build or restore an existing shoreline. This process ensures an eco-friendly application as it uses sediment found naturally at the site. Dredging also results in a healthier lake or pond. As the sediment is dredged (pumped from the lake bottom), it creates a cleaner and clearer waterway. Often, Landshore®, will recommend dredging as it is beneficial to the lake or pond, and a cost-effective solution for the customer.

Dredging requires topographic and bathymetric surveys to determine if any seepage has occurred or if any underwater slope failures created severe erosion. Our process ensures that dredging does not undermine proper lake stabilization. We always want to ensure the safety of our dredging operators, property owners and workers and vehicles in the immediate vicinity of a shoreline.

Silt Removal and Sludge Dewatering

There are many acceptable methods for removing silt, sediments, and sludge from lakes, lagoons, and ponds, such as fi­lter presses, dryers, con­ned disposal areas and chemical dewatering. These other options, however, can be harmful to the environment, costly and time-consuming. The use of Landshore® EFT® Tubes for dewatering is gaining popularity as an economical alternative with minimal environmental impact.

EFT® Tubes for dewatering are constructed of a permeable woven high tensile strength and modulus geotextile made of 100 percent polypropylene yarn. These dewatering tubes allow water to drain through the openings while retaining the sludge. It is often acceptable to allow the clean percolated water to be discharged back into an adjacent body of water, local streams or drainage systems.

EFT® Tubes for dewatering have proven themselves to be extremely efficient for containment and dewatering of pump slurry by-products, industrial waste, municipal sludge, pulp and paper sludge, and other marine sediments. They are custom manufactured in circumferences and lengths for each particular application with prefabricated fi­lling ports and tie down straps along the length of the tubes. They will work well with any hydraulically transported material. The dewatering tubes are specially designed for the mechanical stresses associated with the fi­lling and placement processes, including abrasion, tearing, puncturing, and flattening.