U.S. Route 59 in Texas

U.S. Highway 59 (US 59) in the U.S. state of Texas is named the Lloyd Bentsen Highway, after Lloyd Bentsen, former U.S. senator from Texas. In northern Houston, US 59, co-signed with Interstate 69 (I-69), is the Eastex Freeway (from Downtown Houston to the Liberty County/Montgomery County line). To the south, which is also co-signed with I-69, it is the Southwest Freeway (from Rosenberg to Downtown Houston), which is one of the busiest sections of freeway in the United States with a vehicle count, as of 2006, of over 330,000 vehicles per day just outside the Loop.

US 59 (overlapped by US 71) actually straddles the border between Texas and Arkansas north of I-30 near Texarkana, with the east side of the highway on the Arkansas side and the west side of the highway on the Texas side. In the past, both highways remained on the border past I-30 as State Line Avenue to downtown Texarkana; today, only US 71 does so. Nearly 90 percent of this route is designated to become part of I-69 in the future. Currently 75-mile-per-hour (121 km/h) speed limits are allowed on US 59 in Duval County and portions of northern Polk County.