IAI was contracted to install geotextile tubes, in a tight alignment, to form an L-shaped wall. The geotextile tube wall contained dredged coal ash, which was pumped into the tubes at a rate of 1,500 GPM. The tubes were stacked in a 3-2 geometry, reaching a finished height of 11 FT, and length of 1,900 FT.
Coal Ash Dredging, Dewatering & Water Treatment
IAI provides coal ash (CCR) dredging, dewatering and water treatment services to coal-fired electricity generation plants throughout the U.S. Below are some examples of our coal ash dredging and dewatering projects.
Lower Pond CCR Dredging Project
IAI provided hydraulic dredging services for this CCR pond closure project in Lansing, IA.
Presque Isle Power Plant Pond Dredging
Coal ash (CCR) was dewatered in geotextile tubes and hauled to landfill after 21 days of dewatering.
Coal Ash Waste Dredging
IAI utilized an 8 inch diameter auger dredge with an 8 inch inline booster pump to remove 20,000 cubic yards of solidified coal ash from a runoff water management pond at a coal fired electricity generation plant in Mississippi. Runoff from an adjacent coal ash pile had carried ash waste into the pond and had […]
Coal Ash (Fly Ash) Pond Dredging
IAI provided hydraulic dredging and geotextile tube installation services for this project, which removed 25,000 cubic yards of coal ash from a pond at a power plant in North Carolina.
Coal Ash Maintenance Dredging
IAI utilized an 8″ swinging ladder dredge to remove 20,000 cubic yards of coal ash from a pond in New York, and dewatered the dredged material with a Total Clean mechanical dewatering system.
