| | New Haven Railroad Historical Events |
| | Date | | Category | | Event |
| | 6/14/1848 | | Incorporation | NEW HAVEN & NEW LONDON RAILROAD COMPANY incorporated in Connecticut, with authority to construct a |
| | railroad from New Haven to New London, 50 miles. (Company organized April 16, 1850.) |
| | 6/11/1849 | | Opening of Service | NAUGATUCK RAILROAD opened Devon to Winsted, 58.85 miles. |
| | 6/1/1850 | | Opening of Service | BOSTON AND PROVIDENCE RAILROAD opened, Forest Hills to Dedham (West Roxbury Branch), 5.3 miles. |
| | 6/1/1850 | | Opening of Service | HARTFORD, PROVIDENCE & FISHKILL RAILROAD opened Hartford - Bristol, 18 miles. |
| | 6/18/1852 | | Incorporation | FARMINGTON VALLEY RAILROAD COMPANY incorporated in Connecticut with authority to construct a railroad from |
| | Granby to the Massachusetts state line towards Westfield, 4.5 miles. (Company organized October 29, 1852.) |
| | 6/21/1852 | | Incorporation | NEW BRITAIN & MIDDLETOWN RAILROAD COMPANY incorporated in Connecticut constructed a railroad from New |
| | Britain to Berlin, 3 miles. (Company organized January 7, 1864.) |
| | 6/26/1852 | | Milestone | PROVIDENCE & BRISTOL RAILROAD COMPANY (Rhode Island), name changed to PROVIDENCE, WARREN & |
| | BRISTOL RAILROAD COMPANY (RHODE ISLAND). |
| | 6/29/1852 | | Incorporation | NEW LONDON & STONINGTON RAILROAD COMPANY incorporated in Connecticut, with authority to construct a |
| | railroad from the New York, Providence and Boston Railroad at Stonington to Groton, on the eastern side of the Thames |
| | River opposite New London, and to construct and operate a ferry between Groton and New London. |
| | 6/1/1853 | | Opening of Service | CHARLES RIVER RAILROAD opened Newton Upper Pails to Needham, (Operated by Boston & Worcester.) |
| | 6/1/1853 | | Milestone | BOSTON & PROVIDENCE RAILROAD CORPORATION (of Rhode Island) authorized by change of name from the |
| | BOSTON & PROVIDENCE RAILROAD & TRANSPORTATION COMPANY. |
| | 6/9/1853 | | Merger | HAMPSHIRE & HAMPDEN RAILROAD CORPORATION formed by union of HAMPDEN RAILROAD COMPANY and |
| | NORTHAMPTON & WESTFIELD RAILROAD CORPORATION. |
| | 6/25/1853 | | Incorporation | EAST THOMPSON RAILROAD COMPANY incorporated in Connecticut, with authority to construct a railroad from East |
| | Thompson for a distance of 2 miles to the Massachusetts line, over substantially the same route as the SOUTHBRIDGE & |
| | BLACKSTONE RAILROAD COMPANY had been authorized to build in 1849. (Company organized June 27, 1853.) |
| | 6/30/1854 | | Merger | FALL RIVER RAILROAD COMPANY united with OLD COLONY RAILROAD CORPORATION under name of OLD |
| | COLONY & FALL RIVER RAILROAD COMPANY. |
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