Kansas. to the east, US-270 departs to the south, and US-64 finally runs solo for a significant stretch save for very short concurrencies with US-283 near Rosston, US-183 through Buffalo, and US-281 in Alva. Near Pond Creek, US-64 turns south, joined by US-60 and US-81. US-64 splits off just north of Enid, jogging through the city before rejoining US-412 on the east side of town. The two routes remain together until they meet Interstate 35, which US-64 joins briefly southbound while US-412 continues east, becoming the Cimarron Turnpike. US-64 departs I-35 at Perry, intersecting the parallel US-77 before continuing east. On either side of Morrison the route intersects US-177 and US-412 (again) before passing through Pawnee and Cleveland. It then veers southeast, rejoining US-412 yet again to head into Tulsa. In downtown Tulsa, the route diverges from US-412 for the final time. It briefly (and separately) is concurrent with Interstate 244 and US-75 before bearing southeast through the city while joining OK-51 , intersecting Interstate 44 before briefly joining the southernmost five miles (8 km) of US-169, disjoining OK-51 running southbound on the eastern edge of the city. It then proceeds south, crossing the Creek Turnpike, then crosses the Arkansas River in Bixby before turning to the southeast. After passing through Haskell, US-64 and US-62 meet head-on, north–south; they join and head east toward Muskogee. The routes disengage at the intersection with US-69, with US-64 bearing south out of the center of town. At Warner, the route turns eastward again, where it will run parallel to Interstate 40 for the remainder of its path through Oklahoma. It passes through Webbers Falls, Gore, Vian, Sallisaw (where it has a brief concurrence with US-59), Muldrow, and Roland before leaving the state. Arkansas The route enters Arkansas in Fort Smith and crosses the Arkansas River. The route continues following Interstate 40 through Clarksville, Russellville, and Conway, where I-40 turns south and US 64 continues east. US 64 runs with US 67 and US 167 (Future Interstate 57) near Searcy before passing through rural Eastern Arkansas fields. US 64 runs east to Marion and West Memphis, where it meets I-40 and Interstate 55 to continue east over the Mississippi River on the Memphis & Arkansas Bridge to Memphis, Tennessee. A segment of US 64 in Crittenden County is also known as Military Road and is the oldest road in the state. It was surveyed