Approximately 16,000 cubic yards of accumulated soft sediment, silt and natural clay were hydraulically dredged from the river and marina to increase the navigable depth by four feet. Geotextile tubes used to dewater the dredged sediment were staged in two municipal parking lots along the river. The active dredging phase of the project took place in … [Read more...]
Geotextile Tube Dewatering
IAI has installed 680,000 lineal feet of geotextile tubes (and counting), to dewater 4.9 million cubic yards of material, in projects throughout the United States. We have used geotextile tubes to dewater both clean and contaminated sediments, industrial waste, coal ash (CCR), biosolids, sludge, and industrial waste products. See examples of our geotextile tube dewatering projects, below.
IAI dredged 180,000 cubic yards of in-situ material from Conner Creek to create capacity for a new combined sewage overflow treatment facility. The project involved the removal of approximately 100,000 cubic yards of contaminated sediments utilizing an 8 inch diameter swinging ladder dredge and an 8 inch diameter auger dredge. A specially designed header … [Read more...]
IAI was contracted to remove and dewater silica sand waste from a frozen settling pond at a Woodbury, Minnesota mine, as an immediate means of restoring capacity to the pond. A 500 feet by 250 feet settling pond was filled with silica sand waste, a byproduct of the silica sand mining and washing process. The pond was filled with sand waste, … [Read more...]
This project was completed for the purpose of removing highly PCB-contaminated sediment from the walls and floors of a raceway system located in a former industrial property in Lawrence, MA. IAI utilized a specially equipped electrically powered hydraulic dredge to remove the contaminated sediment from the sub-surface and external raceways, dewatered the … [Read more...]
IAI utilized an 8 inch diameter auger dredge to remove 25,000 cubic yards of coal ash (or fly ash) sludge from an industrial settling pond at a coal-fired electricity generation plant in Lumberton, North Carolina. The coal ash was dredged directly into geotextile tubes, which were deployed around the perimeter of the same pond. The filled geotextile tubes, … [Read more...]