Norfolk Southern spokesman Rudy Husband says one of the company's train engineers was driving in the opposite direction Friday evening when he saw the dog tied to the tracks. The engineer called police, who briefly shut down the tracks, about 8 miles east of Pittsburgh.
The dog is now recovering at the Western Pennsylvania Humane Society, where employees are calling her Choo-Choo.
Humane Society executive director Lee Nesler says the dog recently gave birth. She is emaciated and nearly died of starvation. The society has treated her for diseases. Many people have offered to adopt her.