Complex sentence: In 2011 it was announced that the an $18.5 million investment would be made to upgrade rail infrastructure in the region, including track of south the Delair Bridge, the most downstream rail crossings of the Delaware River.
Split into simpler sentences: In 2011 it was announced that an $18.5 million investment would be made to upgrade rail infrastructure in the region. Work includes track of south the Delair Bridge, the most downstream rail crossings of the Delaware River.