The Army's Chief of Engineers, Lt. Gen.Carl A. Strock, approved yesterday a Chief of Engineers Report that offers a framework for ecosystem restoration and navigation improvements on the Upper Mississippi River and Illinois Waterway. His report has gone to the Secretary of the Army for review and submission to Congress. "We have benefited from a collaborative approach with other federal and state agencies, non-governmental organizations and the public in developing our recommendations," Lt. Gen. Strock said. "I am especially pleased that the study results enjoy the solid support of our non-federal sponsors, and I believe the independent review from the National Research Council has strengthened our effort.