 On September 27, 1954, the eastern terminus was extended to an intersection with the Bluewater Highway, while the western terminus was extended to FM 521 on September 29, 1954 when FM 1605 was combined with the route.On October 24, 1956, the route was redesignated to SH 332 and the western end was extended to SH 36 replacing part of FM 521.On August 15, 1989, a concurrency with SH 288 in Lake Jackson was created.