 At the north end of Waldorf, US 301 has a partial intersection with MD 5 (Mattawoman Beantown Road); access from northbound MD 5 to southbound US 301 is via Mattawoman Drive.The two highways curve north and cross Mattawoman Creek into Prince George's County.The highway temporarily gains extra lanes while passing through the area north of the county line, during which the highways cross Timothy Branch.