The company incorporated on June 17, 1864 at a meeting of Howell businessmen in New Hudson,[1] though articles were not filed until September 21.
[2] A stock issue of $400,000 was authorized for construction of the proposed 48-mile (77 km) line.
By 1866 enough money had been raised to conduct engineering surveys, and grading commenced the following year.
The start of construction in Plymouth, Michigan, on February 6, 1867 was marked by a ceremony where a cherry wood tie was fashioned on the spot and laid on the center line of the road.
By early 1870, the D&H had completed 52 miles (84 km) of line, although it remained unopened.