This section needs expansion. You can help by adding to it. (November 2012)
Spur 371 begins at Billy Mitchell Boulevard at the former boundary of Kelly Air Force Base and heads towards the northeast as a limited-access highway. The highway's northern terminus at US 90 only facilitates traffic from northbound Spur 371 to eastbound US 90 and from westbound US 90 to southbound Spur 371.
The highway is named after Major General William Thomas Hudnell (1908–1986), who served as commander of the San Antonio Air Materiel Area (later the San Antonio Air Logistics Center) at the former Kelly Air Force Base, from 1960 to 1965.