Dewatering Bags and Geotextile Jetties

Hydraulic dredge excavating into geotextile housing has been utilized for decades. Our work has addressed the back pressure issues caused by clogging. We have also increased the efficiency and capacity by incorporating a pressure activated relief design.
What we have learned from jetties is that they work! By reducing the water energy long shore nourishment sand is trapped. We offer a more eco friendly option. Sand filled geotextile groins proved effective in the 1980's. However, they were vulnerable to rip-rap damage and could lose sand. 

Using GeoTubes for GeoJetties to preserve and build beach!

Beyond using these nearly immovable 77 ton sand bags to solve erosion problems directly on a beach or dune, we would like to go a step further and make a grid off shore to trap sand and  BUILD beach! Depending on Mother Nature's changing conditions we can place a grid of bags out into the water and use a changing and adapting system responsibly to bend to nature's will. These geotubes are not considered 'immovable', and if the water line recedes and they are exposed, they can be cut apart, emptied of sand and disposed of.

​Same Beach Different Conditions

Windy and Turbulent Day

When the waves are large so is the amount of energy in them. The water and waves are discolored here because the energy from the waves is carrying sand. We want to prevent the wave energy from scouring the beach, or carrying the sand (and eventually the beach!) out into the lake.

Calm and Clear Day

This is the same beach on a calm day. Notice the sand lines along the pilings. These jetties slowed down the returning water enough to trap the sand. Geo jetties reverse the process of scouring. Water energy flowing over the top is slowed enough to let the sand fall out. You can't stop the water, but you can use the water to deposit sand vs. scour.
30 years of Excellent Service
We are scaled to meet the needs of large projects, but are open and willing to work with individual waterfront property owners. We will work with clients to solve unique problems and offer specialized solutions.
Joe Van Lente, Co-Owner and Founder has 40 years experience in research and development, is a quality and process technician, and expert in the fabrication of industrial materials.
Leon Koehler, Project Manager and advisor has 18 yrs experience in marine construction, dredging, wet land restoration and shoreline erosion control.


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