Momentum for a boundary waters treaty built up against a background of difficulties encountered in apportioning the waters of the St. Mary and Milk Rivers in the west, the Rainy River, the Chicago Diversion of Lake Michigan (which at the time lowered lake levels by 6 inches), the St. Mary's River at Sault Ste. Marie, and the Niagara River. Thus at the International Irrigation Congresses in Denver, Colorado, in 1894 and in Albuquerque, New Mexico, in 1895, resolutions were introduced by the Canadian delegate and adopted unanimously by the American, Mexican, and Canadian delegations. The resolution recommended to the United States "the appointment of an international commission to act in conjunction with the authorities of Mexico and Canada in adjudicating the conflicting rights which have arisen, or may hereafter arise, on streams of an international character." In 1896, the Canadian Government requested that the British Ambassador at Washington inform the American Government that it was prepared to cooperate "by appointment of an international commission or otherwise" in the regulation of international streams for irrigation purposes.
Hillary Clinton and
Minister of Foreign Affairs Lawrence Cannon speak on the 100th anniversary of the Treaty in 2009. In Washington D.C., the treaty was signed for the United States by
Secretary of State Elihu Root, and for Canada by the
British Ambassador James Bryce on January 11, 1909. It was approved for ratification by the required supermajority (two-thirds) of the
American Senate on March 3, 1909. American President
William Taft ratified the treaty on May 13, 1910. British King
Edward VII ratified Canada's corollary International Boundary Waters Treaty Act. ==Objectives==