Damage Assessment
Embankment Erosion
One phase of a river basin project involved the excavation of more than 382,300 cubic meters (500,000 cubic yards) of earth to accommodate the construction of a new barge slip facility. Earthen embankments, or revetments, along two sides of the slip were sloped and constructed of compacted fill. Above the compacted fill, the slopes of the barge slip were further stabilized with grids of precast concrete blocks over construction fabric. The surface area of each revetment was more than 7,700 square meters (83,000 square feet).
Prior to completion of the project and as the result of rainfall with surface runoff down the slopes of the slip, the revetments sustained a significant amount of damage. The assessed damage included movement and undulations in the concrete grids, displacement of the construction fabric, and erosion of the underlying compacted fill.
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