Cleanup of the worst spill of its kind the history of the United States continues this week in east Tennessee, where an earthen retention wall at the Tennessee Valley Authority’s Kingston coal plant failed on Dec. 22 and covered 300 acres with 5.4 million cubic yards and water—or more than one billion gallons—of a sludge-like byproduct of coal combustion called fly ash. Photo: AP/Wide world House knocked off it foundation near site of Tennessee spill. Photo: AP/Wideworld Impoundment pond retention wall failure on Dec. 22 covered 300 acres with 5.4 million cu yd of coal-combustion waste from TVA’s Kingston powerplant.
The market is generally healthy and steadily growing, and margins are up for large specialty contractors. Further, advances in design tools and owner demand for collaboration are giving subcontractors a seat at the table early on in projects.