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The Fairfield County Railroad was chartered May 1835. Its goal was to give Danbury, Connecticut, a rail link with the outside world. At first a route was sought towards Long Island Sound. Next a line north along the Housatonic River was surveyed. This would bring in the much needed money for the railroad.
Due to lack of financing the railroad was not built at first. The Housatonic Railroad offered to connect Danbury if the town would subscribe for a bond of $100.000 in said company. Danbury declined. The Housatonic built northwards along the route that the Fairfield County Railroad had surveyed. The Fairfield County Railroad would now only be limited to build south towards Long Island Sound. In 1850 the Charter was renewed, and the company was renamed the Danbury and Norwalk Railroad which started operation in 1852. The line would eventually be known as the Danbury Branch of several successor railroads.