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We developed a vegetative solution to erosion in Indiana following their wettest Spring in 117 years

macmat

Our MacMat R® replaced a damaged levee embankment following a rare flooding event

Major flooding occurred along the Evansville, Indiana Levee System. We worked with the U.S. Army Corps of Engineers for a permanent erosion solution for this site and selected our MacMat R® to replace the original riprap design.

Portions of the Ohio River basin, in the town of Evansville, Indiana, was subject to severe erosion due to heavy rains. The wet pattern caused flooding on tributaries, while building two primary flood peaks along the slower responding mainstream Ohio River.

The U.S. Army Corps of Engineers wanted to reach a long-lasting solution and approached Maccaferri to discuss the feasibility of designing an environmentally-friendly fix to the erosion taking place along the levee embankment. With the most recent flood event being higher than the proposed repair zone, USACE wanted to look at alternate technical proposals using unconventional products for use in the permanent repair of levee and extend this protection to within 2 feet of the top of the levee.

Our MacMat R®, a reinforced geomat made from a three-dimensional matrix of UV stabilized, non-degradable synthetic fibers, heat bonded at the junction, and extruded on a hexagonal double-twisted wire mesh, was selected for this project.

The overall design met the project requirements of wave wash protection and vegetation reestablishment.

Morley Associates Inc, was awarded the design contract for the Knight Township Levee Wave Wash repair project and construction began in 2011.

For more information and photographs of this project, please download our Case History.

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