The section west of Sabine Pass was previously proposed on September 19, 1956, as SH 362 (for access to the proposed levee; to be cancelled when construction was completed), but the designation was changed to FM 1900 on December 13, 1956 (still was to be cancelled when construction was completed), and FM 1900 was completed, and FM 1900 was cancelled on October 30, 1958, due to completion of construction.
The western part of Sabine Pass was initially suggested as SH 362 (for levee access; to be cancelled upon completion), but on December 13, 1956, the designation changed to FM 1900 (still to be cancelled upon completion). FM 1900 was eventually completed and then cancelled on October 30, 1958, due to construction completion.