 South of the interchange, US-1 runs along the Turnpike.The Hartford and Dedham Turnpike was chartered on March 9, 1804 to close a gap in the turnpikes that were being built to replace the Middle Post Road between Dedham and Hartford.It ran from Dedham southwest to West Medway, where it continued as the earlier Ninth Massachusetts Turnpike and Boston Turnpike to Hartford, Connecticut.