L.V. Broughton standing by plaque. ""This symbol of lasting appreciation of the people of Oregon, Washington and Idaho was affixed to this Ship Lock at Tidewater, the Portal of the nation's longest river seaway, July 9, 1938 by the Mid Columbia Chamber of Commerce in recognition of its opening to the Ships of the World, January 5, 1938 and commemorate completion of Bonneville Dam conceived, designed and erected by Corps of Engineers, United States Army and dedicated to The Human Welfare of the Nation by its President Franklin Delano Roosevelt, September 28, 1937.""