1825 Wedding of the Waters: The Erie Canal and the Making of a Great Nation
Key Player : Gov. DeWitt Clinton  The building of the Erie Canal, like the construction of the Brooklyn Bridge and the Panama Canal, embodies one of the greatest and most riveting stories of American ingenuity

The Pacific Railroad Act of 1862  Key Player: Theodore Judah
” An Act to aid in the construction of a railroad and telegraph line from the Missouri river to the Pacific ocean, and to secure to the government the use of the same for postal, military, and other purposes.”

1914 Building of the Panama Canal  Key Player: Alfred Thayer Mahan
“A continent divided, a world united”  The United States now has a two sea navy. Mahan vision of a stronger navy to protect American interests and commerce comes just in time for the start of World War.

Federal-Aid Highway Act of 1956,  Key Player: President Dwight D. Eisenhower
Popularly known as the National Interstate and Defense Highways Act  massive interstate highway building (41, 000 miles) contributes to suburbanization.