Product: Geotube® Marine Structures Technology
Application: Wetlands Creation
Location: Lake Sinissippi, Wisconsin
This wildlife habitat needed to address multiple issues: declining water quality, invasive carp, and loss of riparian wetlands.
The Lake District selected Geotube® marine containment technology for a pilot project for their lake improvement efforts. A structure of two overlapping 30' circumference Geotube® units was installed in a straight line across the mouth of a 24-acre embayment [photo 2]. 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 height of the Geotube® structure was approximately 5' tall with only one foot extending above the water's surface. After the tubes were filled, additional slurry mixture was pumped behind the Geotube® line to create the berm and establish a wildlife habitat. Finally, submerged and emergent varieties of pond reed, white water lily, and hard and soft stem bulrush plants were planted in the bay area.
This wetlands project proved very successful. The wetland area behind the berm is now completely rehabilitated with natural flora taking hold. It is now common to see a variety of birds and wildlife enjoying the Geotube® structure [photo 4]. And the Geotube® units remained in place despite the harsh Wisconsin winters and heaves of ice sheets [photo 6].
The Lake District was thrilled with this pilot project. The group plans to use Geotube® marine technology again for similar projects.