This Texas & New Orleans right-of-way once ran between Nacogdoches, to the north, and Beaumont, to the south. It entered Nacogdoches via a junction with the Houston East and West Texas (a subsidiary of the Southern Pacific, which also owned the T&NO) at Dorr Junction about 2 miles south of the passenger station in Nacogdoches. When the Sam Rayburn reservoir was built, the line south of Nacogdoches was abandoned between Nacogdoches and a spot on the Angelina and Neches River Railroad where the T&NO crossed the A&NR. A junction was built here and T&NO trains ran west on the A&NR to Prosser Junction where the A&NR crossed the HE&WT line. At Prosser Junction T&NO trains could proceed north to Nacogdoches or south to Lufkin.
Loeb junction was created in 1960 to allow the abandonment of the T&NO track that ran parallel to the GCSF Beaumont to Silsbee line. In the 1960s thru 1970s the line from Beaumont at Loeb Junction to Prosser Junction in Lufkin was very lightly used and was all jointed 80- and 90-pound rail. Some rock ballast existed and portions of the line were dirt ballast. Sometime in the late 70s or early 80s SP completely rebuilt this line with crushed granite ballast, new ties, and 130-pound welded rail. This was done to allow chemical, grain, and plastics trains northbound from the Beaumont, Port Arthur, to avoid the making the 90-mile trip west to Houston before going north on the HE&WT. By the late 80s however, the SP was in financial trouble and needed elsewhere the 100 miles of new rail now on the Beaumont to Lufkin line. Thus, sometime in the late 80s or early 90s, the entire line between Loeb Junction and the junction with the A&NR was abandoned, and the infrastructure removed, thus rendering short-lived the line's upgrade.
Loeb is now known as Rose Hill Acers and is about 10 miles north of Beaumont city center. Part of the abandoned T&NO line was used to add two additional lanes to highway 69 from Loeb into Beaumont.