In 2015, the Lower Pond CCR Dredging Project was performed at a power generation station in Lansing, IA. IAI was selected to provide dredging and bypass pumping operations services for the project. IAI utilized our 8-in. diameter auger dredge to remove about 2,000 cubic yards of coal combustion residuals (CCR, or coal ash) from the Lower Pond, to prepare … [Read more...]
Presque Isle Power Plant Pond Dredging
IAI was selected by We Energies to remove and dispose of accumulated sediment and coal combustion residuals (CCR) from a pond at the Presque Isle Power Plant in picturesque Marquette, Michigan. IAI provided general contractor services, and self-performed the geotextile tube dewatering portion of the work. Approximately 4,000 cubic yards of coal … [Read more...]
Coal Fines Dredging & Dewatering Project
IAI utilized a 445 horsepower, 12 inch diameter auger dredge with a 12 inch diameter inline booster pump to remove coal fines from an impoundment that was filling to capacity at a mining facility in southern Illinois. During day time hours, mine flow was combined with the dredge flow feeding the geotextile tubes dewatering operation, for a total flow of … [Read more...]
Fond du Lac River & Marina Maintenance Dredging
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...]
Conner Creek CSO Dredging Project
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...]
Brownfield Raceways Remediation
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...]
