Farm to Market Road 1518 (
FM 1518) is located in the
Greater San Antonio area. The southern terminus of FM 1518 is at a junction with
Loop 1604 in the southeastern Bexar County town of
Adkins. It continues north through the town of
St. Hedwig and crosses
Interstate 10 (I-10) at its exit 591. The route then passes to the east of
Randolph Air Force Base before reaching
FM 78 near
Schertz, just west of the Guadalupe County line. Officially, FM 1518 is discontinuous here, and the route designation resumes at another point farther east along FM 78. Now in Guadalupe County, FM 1518 travels through the southwestern portion of Schertz and into
Selma, where it ends at an intersection with
I-35's exit 174A. FM 1518 was designated on September 28, 1949, as a short route that connected unincorporated southern Bexar county communities southeast of SH 346 to
SH 346 (which would ultimately become part of
SH 16). On December 17, 1952, FM 1518 was extended west to a road intersection. On April 21, 1953, the route was extended west to Somerset. On May 25, 1953, the road was extended to US 81 (now SH 132), replacing
FM 1749. On November 21, 1956, FM 1518 was extended east to
FM 1937. On August 8, 1958, FM 1518 was extended east to US 81(now I-35), replacing the section of FM 1937 from its current end to US 87. FM 1518 also replaced
FM 1316 from US 90 to FM 78 and
FM 1621 from FM 78 to US 81. On June 28, 1963, FM 1518 was extended west to
FM 471, creating a route of approximately that looped around the southwestern, southern, and eastern portions of the greater San Antonio area. On August 23, 1973, the section of FM 1518 from FM 471 to what is now Loop 1604 (then
FM 2173) was renumbered as
FM 2790 and the section from there to SH 16 became a portion of
FM 1604 (now Loop 1604). On June 30, 1977, the section of FM 1518 from there to the current junction with Loop 1604 was transferred to Loop 1604. At that same time, FM 1604 was canceled and redesignated as Loop 1604, shortening FM 1518 to its current route. In 1995, the northern portion of FM 1518, from I-35 to FM 78 was officially redesignated as
Urban Road 1518 (
UR 1518); the designation reverted to FM 1518 with the elimination of the Urban Road system on November 15, 2018. ;Junction list {{TXint {{TXint|type=concur {{TXint|type=concur {{TXint ==FM 1519==