sentences:  The remainder of the freeway between Terrell and I-20 makes up the full route of Spur 557.The entire US 80/Spur 557 freeway was a section of I-20 until 1987, when the Interstate was moved onto a new freeway through Lawson and Heartland.A pair of frontage roads services the entire US 80 segment of the freeway, except for a small area west of Forney, where US 80 crosses a bridge over the East Fork Trinity River.