Special routes of U.S. Route 87 in Texas   The following routes - special routes, state highway loops, and Interstate business loops (of Interstate 27) - exist or existed parallel to U.S. Highway 87 in the U.S. state of Texas, mostly along a former alignment. Business U.S. Highway 87-U is the old route of US 87 through Stockdale. It was formed on May 31, 1965 as Loop 411, but always marked as a business route of US 87; On June 21, 1990 the official designation was changed to Business US 87. Loop 321 is the old route of US 87 through La Vernia, formed in on July 16, 1957. Spur 345 is the old route of US 87 through northern San Antonio, formed on January 26, 1962, as Loop 345. It begins at I-10/US 87 at Woodlawn Avenue, and runs northwest on Fredericksburg Road to I-10/US 87 near Huebner Road. When first designated, Loop 345 was marked as a business route of US 87. On December 18, 2014, the section of Loop 345 from I-410 south to I-10 was removed from the state highway system, and the rest was redesignated as Spur 345. Business US Highway 87-M follows the old route of US 87 through Big Spring. The highway was designated in 2013 with the construction of a new expressway route for US 87 around the town. The expressway south of I-20 opened to traffic in 2016 while the northern section is currently under construction. Loop 577 is the old route of US 87 through Vick, formed October 6, 1991. About midway, it intersects the south end of FM 381. Loop 570 is the old route of US 87 through Wall, formed on March 19, 1990. Business U.S. Highway 87-K is the old route of US 87 through Lamesa. It was formed on December 10, 1946 as Loop 218 on Lynn Avenue. On June 21, 1990 the official designation was changed to Business US 87, and on January 2, 1992, US 87 and Business US 87 were swapped, placing the former on Lynn Avenue and the latter on Dallas Avenue. Loop 472 is the old route of US 87 through Tahoka, formed on January 31, 1969. Loop 493 is the old route of US 87 through Woodrow, formed in late 1970. When first designated, Loop 493 was marked as a business route of US 87. Business U.S. Highway 87-G was the old route of US 87 through Lubbock, formed in mid-1992 when Interstate 27 was completed and US 87 was moved onto it.