the two sections of FM 400 were both extended to connect with US 84 at two different points in Slaton. The route was extended northward to Plainview on January 27, 1950. It was extended north to the FM 145 on February 24, 1953, replacing the section of FM 788 from US 70 north to the junction of FM 788 and FM 400 and all of FM 2078; this created the concurrency with FM 788, which TxDOT officially considers a gap in that route's mileage. On April 24, 1953, the section from FM 145 to the Swisher county line was cancelled, but would be reinstated on October 29, 1953. The route designation was amended in 1965 after the US 84 freeway bypass south of Slaton was constructed; the old location of US 84 was renumbered Loop 251, which would eventually be redesignated as Business US 84 in 1991. Major intersections See also Becton, Texas Farm to Market Road 669 Heckville, Texas Idalou, Texas Notes References External links 0400 Transportation in Lynn County, Texas Transportation in Lubbock County, Texas Transportation in Hale County, Texas Transportation in Swisher County, Texas