 On Frederick Road, northbound at Professional Drive, this is going to be in place until at least 5 a.m. An accident in Gaithersburg on Woodfield Road at Woodfield School Road and Road Construction has the right lane closed in Rockville. On 270, the local lane southbound between Falls Road and Montrose Road. The WTOP Traffic Center is presented by Window Nation. Buy two windows, get two free. Visit windownation.com. I'm Butch Seltzer, W.