Complex sentence: Between 1938 and 1940, a grade crossing elimination project was undertaken over three miles between Great Kills and Huguenot, eliminating seven grade crossings and costing $2,136,000, which was partially paid for by the city, state, and Progress Work Administration funds.
Split into simpler sentences: Between 1938 and 1940, a grade crossing elimination project was undertaken over three miles between Great Kills and Huguenot. The project eliminated seven grade crossings and cost $2,136,000, which was paid for in part by the city, state, and Progress Work Administration funds.