CHATTANOOGA, Tenn. – Shimmick Corporation, doing business as Shimmick Construction Company, Inc., a construction company that serves as the prime contractor on the U.S. Army Corps of Engineers’ Chickamauga Lock Replacement project in Chattanooga, Tennessee, violated federal law when it retaliated against an employee because she opposed discrimination and participated in an investigation about alleged discrimination, eventually forcing her to resign, the U.S. Equal Employment Opportunity Commission (EEOC) charged in a lawsuit today.