High Quality Content by WIKIPEDIA articles! Interstate 27 (I-27) is an intrastate Interstate Highway, located entirely in the U.S. state of Texas, running north from Lubbock to Interstate 40 in Amarillo. These two cities are the only control cities on I-27; other cities and towns served by I-27 include (from south to north) New Deal, Abernathy, Hale Center, Plainview, Kress, Tulia, Happy, and Canyon. In Amarillo, I-27 is commonly known as the Canyon Expressway, although it is only Canyon Expressway on frontage roads. I-27 officially designated as the Marshall Formby Memorial Highway after former attorney and Texas State Senator Marshall Formby. However, the name is not commonly used, the colloquial reference by the general public is I-27. The entire length of I-27 replaced U.S. Highway 87 for through traffic.