sentences:  This route, I-635, runs from I-35 at its southern terminus up to I-29, just about across the Missouri River, at its northern terminus.From I-635 to just past the 7th Street (US 169) exit, I-70 runs adjacent Union Pacific's Armourdale Yard.Here I-670 (also designated "Alternate 70" on some signs) diverges, providing a more direct route that rejoins I-70 proper a few miles east in Missouri.