It was charted in 1848 , began construction in 1850 , and opened for service in July 1852 .
The section from New Haven to New London was built as the New Haven & New London Railroad .
New London was charted in 1848 , began construction in 1850 , and opened for service in July 1852 .
The section from New Haven to New London was built as the New Haven & New London Railroad .