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

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

Built in 1881 and closed in 2004 over structural problems, a Smithsonian building restored for $55 million has finally been chosen for a permanent new life

Built in 1881 and closed in 2004 over structural problems, a Smithsonian building restored for $55 million has finally been chosen for a permanent new life

The Smithsonian Arts and Industries Building in 2021. (Matt McClain/The Washington Post) The Smithsonian Institution Board of Regents has officially chosen the historic Arts and Industries Building on the National Mall as the permanent home of the National Museum of the American Latino. The decision ends a long debate over the museum’s location and removes … Read more

A 16th-century English longhouse hid serious structural problems behind its walls; the builder restoring it has now turned the centuries-old property into his own family home

A 16th-century English longhouse hid serious structural problems behind its walls; the builder restoring it has now turned the centuries-old property into his own family home

The restoration included repairing much of the original oak frame, but also creating contemporary spaces that met the needs of modern family living. Cadman Construction was already undertaking one of its most challenging heritage projects: restoring a Grade II-listed 16th-century longhouse in Suffolk. But for Stuart Cadman, Managing Director of Cadman Construction the challenge had … Read more