sentences:  The segment of US 59 from Tenaha to Texarkana will be signed as I-369.Since the first section of US 77 between Corpus Christi and Robstown was signed as I-69, it implied that the I-69 mainline would follow the coastal (US 77) route from Victoria to Brownsville.This also implied that the branch along US 59 from Victoria to Laredo and the branch along US 281 from George West to Pharr would be signed as either three-digit spurs of I-69 (I-x69) or as separate two-digit Interstate Highways.