U.S. Route 183 is a north–south United States highway. U.S. 183 was the last US route to be completely paved. The 20-mile (32 km) segment in Loup County, Nebraska, north of Taylor, was unpaved until 1967. The highway's southern terminus is in Refugio, Texas, at the southern intersection of U.S. Highway 77 and Alternate US 77. Its northern terminus is in Presho, South Dakota, at an intersection with Interstate 90. US 183 and Alt US 77 overlap for their final 80 miles (130 km) between Cuero and Refugio.
US-183 begins in Refugio, sharing a multiplex with US-77A. The two highways continue north through Goliad County until they split in DeWitt County. US-183 crosses I-10 south of the town of Luling.
The largest city that US-183 passes through is Austin, Texas, where it is mostly a limited access highway. Northwest of Austin, US-183 passes through the suburbs of Cedar Park and Leander, where the 183A toll road runs parallel to it. In Lampasas County, US-183 shares a multiplex with US-190 between the towns of Lampasas and Lometa.
U.S. Route 183 (US 183) is a north-south U.S. highway that begins in Texas in Refugio at an intersection with US 77 (Future I-69E) concurrent with US 77 ALT. The highway runs through many small communities with Austin being the only major city along its route. The highway exits Texas concurrent with US 70, crossing into Oklahoma.
US 183 begins in Refugio at an intersection with US 77 (Future I-69E). US 77 ALT also begins at this intersection. The two highways travel north towards the historic town of Goliad. A few miles north of Cuero, US 77 ALT leaves the highway.
US 183 travels through many towns, including Gonzales and Luling before reaching Lockhart. Just north of Lockhart, the highway interchanges with the SH 130 toll road, and begins an "overlap" with the highway. US 183 becomes the frontage road for the toll road until Mustang Ridge, where SH 130 joins the SH 45 toll road.
Upon entering Austin, US 183 has many interchanges before becoming a freeway, just south of US 290. This freeway lasts until the 183A toll road. While 183A serves as a bypass around Cedar Park and Leander, US 183 serves as a more direct surface street.