Crews are removing more than 850,000 cubic yards of contaminated sediment from the Cuyahoga River in Cuyahoga Falls, Ohio, as part of a major cleanup around the Gorge Dam. The material contains pollutants including heavy metals, oil, grease and industrial chemicals that have remained trapped in the river for decades. Instead of being left in the river or simply moved elsewhere, the dredged material is being transported two miles downstream, where it is processed, strengthened and placed in a specially prepared area. The work is expected to continue through 2027, according to theUS Environmental Protection Agency.
Why more than 850,000 cubic yards of contaminated sediment is being removed
The sediment has built up in the pool behind the Cuyahoga Gorge Dam, where pollutants from the river’s long industrial history have remained trapped. According to the US EPA’s Cuyahoga Gorge Dam cleanup project, an estimated 865,200 cubic yards of contaminated sediment will be remediated as part of the project.The material contains polycyclic aromatic hydrocarbons, polychlorinated biphenyls, oil and grease, as well as heavy metals such as cadmium and lead. Removing it is intended to reduce the risk of exposure for people, fish and other wildlife.The scale of the work is substantial, but it is also part of a long effort to restore a river that has already undergone major changes.
For much of the 20th century, the Cuyahoga River was heavily affected by industrial waste. UniquePlacestoSave reports that factories and oil refineries discharged solid and chemical waste into the river, including material containing toxic heavy metals.The river caught fire repeatedly, with fires recorded as far back as 1868. The 1969 fire drew particular national attention after an oil slick caught fire, helping turn Cuyahoga into a powerful symbol of severe water pollution, according to UniquePlacestoSave.The situation began to change after stronger pollution controls were introduced. The organisation notes that the Clean Water Act of 1972 gave the federal government greater authority to limit pollution and regulate discharges. Over time, industries reduced the dumping of chemical waste and cities improved their sewage systems…