National Geographic : 1966 Jan
KODACHROME(RIGHT) BY ROBERT F. SISSON © N.G .S. CANADAWIDEFEATURESERVICE "Magnificent symbol" of Canadian-United States ties-thus Ike hailed the St. Lawrence Seaway as he and Queen Elizabeth II dedi cated the joint project at Montreal in 1959. Biggest ditchdigging job since the Panama Canal, the system of locks, channels, and dams opened the Great Lakes to ocean ship ping. Starting with Woodrow Wilson, every President had favored such a project. Stairsteps to North America's middle, Snell Lock and six others lift vessels 224 feet in the 189 miles of seaway. Snell helps ships pass Moses-Saunders Powerdam, which harnesses Great Lakes drainage and gener ates electricity for the neighboring nations. Concrete ribbons lace the states with high speed expressways and fulfill a cherished dream. The Interstate Highway System, a joint state-Federal venture enacted in 1944, grew slowly at first. Eisenhower urged Con gress to increase Federal participation to 90 percent, and it did so in 1956. Today mo torists can travel half of the planned 41,000 mile network.