A previous route designated Spur 57 was established in
Montgomery County on September 25, 1939. This route provided a connection between
US 75 (now
SH 75) and
Conroe. This route was extended through Conroe and back to US 75 on December 30, 1960, and was given the designation
Loop 57. The route was truncated to
SH 105 and the designation was changed back to Spur 57 on May 1, 1980. The entirety of this route was removed from the state highway system on April 15, 1986. ==Major intersections==