US National Archives
Our Documents: Pacific Railway Act (1862)
Contains images of the original document and a transcript of the complete text of the Pacific Railway Act of 1862 in an easy to read format. Also contains a brief overview on the background behind this act.
Thinkport Education
Maryland Public Television: Port: A Transportation System
The Port of Baltimore is extensively covered with interviews, stories, interactive opportunities, and details about specific careers associated with the large harbor's transportation system that supports much of Maryland.
Other
The Erie Canal: Low Bridge, Everybody Down [Pdf]
The learning activity examines how the Erie Canal affected New York State's development.
Other
American Almanac: The Chinese Model for America's Canals
This site contains information pertaining to the signifigance of the canals in developing new settlements.
Siteseen
Siteseen: American Historama: Erie Canal
Provides details about the Erie Canal that stretched for 363 miles linking the Great Lakes with the Atlantic Ocean.