it as a border-to-border highway, hugging the southern borderline. On November 20, 1917, SH 12 was rerouted into Corpus Christi via present day Interstate 37, U.S. Highway 181 and SH 35 into Rockport, Texas. The road then doublebacked, via SH 188 and FM 136 to Bayside. From here, another proposed road would have met back with US 77 into Victoria. In late July 1917, the segment from El Paso, to near Lobo was rerouted to instead go to a proposed New Mexico crossing, due south into Van Horn, via SH 54 and continued to near Valentine, Texas over US 90. By 1919, the road again was proposed to bypass Big Bend, meeting up again with current US 90 in Sanderson, meeting up with its old alignment in Langtry. By 1919, SH 12 then terminated far short of Orange in Rosenberg. Much like other highways at the time, multiple alternate routings have been created using the same number, and SH 12 was no exception. SH 12A was designated on December 17, 1918 via present day SH 60 from Wharton to Matagorda.SH 12B was designated on March 18, 1919, from Beeville through Oakville, Tilden, and Gardendale, to Eagle Pass as a bypass if SH 12 between these places could not be built. The New Mexico border crossing was rerouted to the current U.S. Highway 180 crossing. On March 15, 1920, The Rio Grande hugging Big Bend segment was completely abandoned, with SH 12 now using the current US 90 highway from Valentine to Alpine to Sanderson. The road from Del Rio, Eagle Pass, Laredo to Pharr was still proposed, and sections had been built west of Pharr. However, not sure if that road would be built either, a cut-off SH 12A was designated on February 22, 1921 from Laredo to Hebbronville which would eventually become SH 359 and SH 44 into Robstown where it met up with the original SH 12. The Matagorda-Wharton segment was renamed SH 12C. On August 21, 1923, SH 12 had lost much of its assignment, being mostly confined to south and southeast Texas. The Eagle Pass-Laredo and Refugio-Rockport segments had never been built. The section of SH 12 from Corpus Christi to Gregory was transferred to the new SH 16, and the section of SH 12 from Gregory to Rockport was handed over to the new SH 57. SH 12C was handed over to the new SH