monitoring

After a 25-acre Lake Erie wetland was reconnected, sonar recorded 3.44 million fish detections over 2,022 monitoring hours across four years, showing the restored habitat was used continuously

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After a 25-acre Lake Erie wetland was reconnected, sonar recorded 3.44 million fish detections over 2,022 monitoring hours across four years, showing the restored habitat was used continuously

After a 25-acre Lake Erie wetland was reconnected A restored 25-acre coastal wetland on the southern shore of western Lake Erie was used continuously by millions of aquatic animals after it was reconnected to nearby waterways, according to a four-year acoustic monitoring study led by researchers at the United States Geological Survey (USGS). The scientific … Read more

In 1972, Illinois used 246,000 cubic yards of coal fly ash beneath 7,500 feet of expressway; monitoring found no evidence of settlement, frost or capillary-rise problems

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In 1972, Illinois used 246,000 cubic yards of coal fly ash beneath 7,500 feet of expressway; monitoring found no evidence of settlement, frost or capillary-rise problems

More than five decades ago, civil engineers in northern Illinois carried out a major engineering experiment by using 246,000 cubic yards of coal fly ash beneath 7,500 feet of a major expressway embankment. The pioneering project, completed in 1972 near Waukegan along the US Route 41 corridor, was one of the earliest large-scale examples of … Read more