Corps Quality Assurance on site for construction to replace a portion of retention wall along Mahoning Creek and State Route 54 in the Borough of Danville, Penn, Sept. 30, 2014. Approximately 90 feet of this wall was compromised during Tropical Storm Lee in 2011. The replacement work is was performed by the U.S. Army Corps of Engineers, Baltimore District, under the authority of Public Law (P.L.) 84-99, Flood Control and Coastal Emergency Act.