Oklahoma State Highway 77H Oklahoma State Highway 77H State Highway 77H is a spur that runs from US-77 in Norman, north through a small piece of unincorporated Cleveland County and Moore, to Oklahoma City. The state highway designation ends at I-240, although Sooner Road continues north to its terminus at I-35, I-44, Turner Turnpike, Kilpatrick Turnpike, and SH-66. State Highway 77H was originally created to serve the now-defunct town of Hollywood. This likely explains why the suffix "H" was assigned when letters earlier in the alphabet were available. State Highway 77H begins at the intersection of 12th Avenue N.E. and Tecumseh Road in Norman.
Oklahoma State Highway 15 SH-15 splits off to the northeast, heading through Gage and Fargo, before ending in Woodward. The eastern SH-15 picks up a US-64/412 south of Garber, and begins concurrent with State Highway 74 heading northbound. It splits from SH-74 to head through Billings and has an interchange with Interstate 35 at milemarker 203. It then has a five-mile (8.0 km) concurrency with U.S. Highway 77. After leaving US-77, it passes through Red Rock, and has a concurrency with US-177, and splits off just north of the intersection with the Cimarron Turnpike. It bridges Sooner Lake and runs for 15 more miles