[gallery ids="428598"] The Tomball and Magnolia areas, home to both the Union Pacific Corp. and the Burlington Northern Santa Fe rail lines, were founded as railroad towns. The communities include dozens of highway-rail at-grade crossings, meaning the railway and roadway intersects on the same level. Texas leads the nation in its number of freight railroad miles, according to the Association of American Railroads, as well as in the number of highway-rail incidents in 2018, Federal Railroad Administration data shows.