TenCate - Geotube

Creative Uses of TenCate Geotube Marine Technology Continue to be Instrumental for Unique Marine Applications


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Backed by proven, innovative methods, Geotube units offer key advantages for many distinctive marine structure projects.

Thanks to Geotube marine technology, the waterfowl of Lake Sinissippi (Wisconsin) now enjoy an improved wildlife habitat, and the residents near Lac Saint-Jean (Quebec) no longer worry about shoreline erosion issues. Geotube marine structures were successfully installed in both of these recreational lake areas.

Geotube marine technology has been fundamental in the creation of many unique marine projects worldwide — from sand dune cores to breakwaters to marine structures.

TenCate, manufacturer of Geotube materials, develops and produces materials that function to increase performance, reduce cost, and deliver measurable results by working with our customers to provide advanced solutions.

Custom Solutions for Marine Applications

Geotube marine containment technology, first used in 1962, offers great flexibility and cost-effective methods for a variety of coastal and inland waterway applications. Often times these marine projects present a challenge in the design and construction phases. Geotube£ containers have proven to be up to the test.

'TenCate has a strong history with marine construction projects' said Mark Gunzenhauser, Vice President Sales - Geosystems. 'We have the resources and expertise to develop custom solutions that address the unique characteristics of a specific marine project.'

Lake Sinissippi: Geotube Wetiands Creation 

The Lake Sinissippi Improvement District deals with many long-term management issues: sedimentation, turbidity, shoreline stabilization, and disappearing wetlands. In past decades, the lake saw a gradual decline in water quality. The Improvement District made plans to use shoreline protection technology to enhance the shorelines in sensitive habitat areas, to deal with invasive carp, and to restore lost riparian wetlands. Geotube marine technology was selected for a pilot project for their lake improvement efforts.

A structure of two overlapping Geotube8 units (30-ft. circ, 760-ft. long) was installed in a straight line across the mouth of a 24-acre embayment. It was positioned to serve as a breakwater/ erosion berm and to restore the wetlands area for native plants and waterfowl.

Almost 3,000 cubic yards of sand/silt sediment was removed from the lake to create the berm. The filled Geotube units sit on the lake bottom. The height of the Geotube structure measures roughly 5-ft. tall with only the top foot rising above the water's surface. After the units were filled, additional slurry mix (sand/silt) was pumped behind the Geotube structure to create an erosion berm and establish a wildlife habitat. Once the berm was complete, submerged and emergent varieties of pond reed, white water lily, bulrush, wild rice, and pickerel weed was planted with the bay area by the Lake District.

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