The Preston Rd Entrance to the TEXpress Lanes is located on the I-635 / LBJ frontage road (past Preston Rd). Drivers traveling on the eastbound I-635 general highway lanes must first take the Hillcrest Rd exit, then remain on the frontage road to enter the TEXpress Lanes (left-hand on-ramp). You can then access the following exits: US 75 HOV Exit (T-19), open 3 - 6:30 p.m. northbound to Spring Creek Pkwy (only HOV drivers can use this exit); TI Blvd Exit (T-18A) (get into the far left-hand lanes); Forest Ln / I-635 East Exit (T-18B); I-635 HOV Exit to the eastbound HOV lane (for HOV drivers only) Tip: After leaving the TEXpress Lanes and entering the eastbound general highway lanes, Abrams Rd / Forest Lane is the first available exit. To view and download a copy of the LBJ TEXpress Lanes Entrance Ramp maps, visit: http://www.lbjtexpress.com/maps/LBJ-T...