Metro has posted the latest designs for the enormous Hughes St. overpass along Harrisburg Blvd. on the far-east segment of the East End rail line. The $27-to-$42-million bridge is meant to carry cars and Green Line passengers over the Union Pacific East Belt freight rail line that runs north-south just west of Hughes St., between the soon-to-open East End line’s between the future Altic and Cesar Chavez stations. The posted design concepts, Metro notes, combine a “garden” wall and a wall noting a few 4-digit numbers important in the history of the neighborhood with a ribbon of white LED lighting above and blue accent lighting underneath and along the columns: