Complex sentence: Construction of a "tunnel box" which would preserve the right-of-way on Manhattan's West Side began in September 2013, using $185 million provided as part of the relief and resiliency project in the aftermath of Hurricane Sandy.
Split into simpler sentences: Construction of a "tunnel box" which would preserve the right-of-way on Manhattan's West Side began in September 2013. In 2013, $185 million in funding for the "tunnel box" was provided as part of the relief and resiliency project in the aftermath of Hurricane Sandy.