The transcontinental railroads completed in the 1860s, 1870s, and 1880s all bypassed the ___. Naim 22:07 Chapter 1 The transcontinental railroads completed in the 1860s, 1870s, and 1880s all bypassed the ___. a.northeast b. midwest c.south d.mountain states e. far west Answer: C Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+