how long did the union pacific take to build
The transcontinental railroad was the culmination of more than 20 years of work, although the actual building of the tracks only took about five years. Both sets of tracks were built primarily by immigrant laborers, with the Central Pacific employing mostly Chinese workers and the Union Pacific workforce made up of mostly Irish workers.
Quick Answer. It took 6 years to build the Transcontinental Railroad. It was built between 1863 and 1869 and it measured 1,776 miles in length. This was the first time that the Atlantic and Pacific coasts were connected by railroad in the United States.