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US 77 is a north-south United States highway. Although it is unsigned in and around Dallas, Texas, the route has been spared much of the decommissioning that has shortened other US highways. The route has major freeway sections in Oklahoma City including the Broadway Extension (aka Interstate 235) connecting suburban Edmond to downtown Oklahoma City and Shields Boulevard in South Oklahoma City.
As of 2004, the highway's northern terminus is in Sioux City, Iowa at an intersection with Interstate 29. Its southern terminus is in Brownsville, Texas at the Mexican border.
As of 2004, Alternate US 77 has a northern terminus in Hallettsville, Texas. It rejoins US 77 at Refugio, Texas. While the main line of US 77 passes through Victoria, Alternate US 77 veers to the west to serve Yoakum and Cuero.
The highway passes through the following states: