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Warren B. Diederich, former treasurer of �������ϲʿ���Ԥ�� and lifetime member, passed away.  He was born in Fergus Falls, Minn., on February 10, 1924.  Warren married Irene Gunvaldsen in 1946.  Warren and Irene are the parents of four children, Michael (Mary), Laura Carley (Cole), Donn (Kirsten) and Paul (Ellen), all of Fargo. Grandchildren are Lisa, Ryan, Monica, Brittany, Erik, and Anna Diederich; Sean, Jay, and Marcus Carney; Great granddaughter Lily Carney. Warren and Irene founded Industrial Builders, Inc., in 1953 and started to build bridges, dams, and highway projects.  Warren was President of �������ϲʿ���Ԥ��’s ND Chapter, National Chairman of the Highway Division, Chairman of the Bureau of Public Roads, and served as National Treasurer in 1992. He was honored for his work on highway legislation that benefited North Dakota and its allotment of the Federal Highway Trust Fund in 1981.  He was selected for the North Dakota Highway Hall of Fame in 1987.  He was a committee member and the Chairman of the National Academy of Science Highway Research.  In 1990 he was awarded the C.I.T. Group / Industrial Financing “Rebuilding America” Award in recognition of his contributions to the infrastructure of the United States.  He was a member of the Consulting Constructors Council to benefit Construction �������ϲʿ���Ԥ�� since 1970.  He was also a Life Honorary Director of TRIP, a National Transportation Research Group. Memorials preferred to Hospice of the Red River Valley, Associated General Contractors of America �������ϲʿ���Ԥ�� and Research Foundation, or North Dakota State University Development Foundation Scholarship Fund.