Question: John Lucian Savage is best known for a dam on the border between what two states?
Related documents: [0]  [DOC] John Lucian Savage (December 25, 1879 – December 28, 1967) was an American civil engineer. Among the 60 major dams he supervised the designs for, he is best known for the Hoover Dam, Shasta Dam, Parker Dam and Grand Coulee Dam in the United States along with surveying for the future Three Gorges Dam in China. He was a member of the National Academy of Sciences and the recipient of numerous awards including the John Fritz Medal. [END] 
[1]  [DOC] Hoover Dam, originally known as Boulder Dam from 1933 to 1947, when it was officially renamed Hoover Dam by a joint resolution of Congress, is a concrete arch-gravity dam in the Black Canyon of the Colorado River, on the border between the U.S. states of Nevada and Arizona. It was constructed between 1931 and 1936 during the Great Depression and was dedicated on September 30, 1935, by President Franklin D. Roosevelt. Its construction was the result of a massive effort involving thousands of workers, and cost over one hundred lives. The dam was named after President Herbert Hoover. [END] 
Answer: 
Nevada and Arizona
Nevada and Arizona