In 1839 the planes have been abandoned, and the new line was constructed north of exactly where Mount Airy is these days. This was a result of more powerful locomotives that were built and heavier hundreds were being hauled. In 1901, a railroad tunnel was built around the south facet https://rafael21.worldblogged.com/34065264/the-fact-about-eos-powerball-that-no-one-is-suggesting