 Serious crash under investigation inbound Route 4, Pennsylvania Avenue, closed between Dower House Road and Presidential Parkway, also Suitland Parkway in that intersection as you come in from Upper Marlboro towards the Beltway. Be prepared for police direction. Woodyard Road over to Branch Avenue would be one way around it. You can go up 301 towards Route 50. You can take 202 from Upper Marlboro over towards 214 in Kettering and pick up the Beltway in that fashion.