Complex sentence: It also had a roundhouse facility from 1913 to 1960, which was replaced by an intermodal freight facility which transfered freight between truck and train, the site of which is now a Walmart store.
Split into simpler sentences: It also had a roundhouse facility from 1913 to 1960. This infrastructure was replaced by an intermodal freight facility which transfered freight between truck and train, the site of which is now a Walmart store.