This isn't good. Sinkhole is in a grassy area between runway 18L and a taxiway.
http://thescoopblog.dallasnews.com/2015/05/faa-sinkhole-opens-up-at-d-fw-airport-forcing-authorities-to-close-a-runway.html/Update at 10:05 a.m.: Magaña said officials dont know how long it will take to repair the 25-foot-by-25-foot sinkhole.
He said the closure of Runway 18L did not affect any flight departure times this morning. The FAA is operating around the closure, Magaña said.