A series of brush fires along I-270, 495, Old Georgetown Road, Rockledge Boulevard, and the 5500 block of Tuckerman Lane in Bethesda in Montgomery County, Md., resulted in major traffic delays on I-270 northbound on Tuesday afternoon. The delays from the fires extended past the Outer Loop's Exit 33, and three lanes of northbound I-270 were blocked near Md. Rte. 187. All lanes were cleared and re-opened just after 3:15 p.m.