The District Department of Transportation (DDOT) is responsible for the planning, designing, building, and maintenance of:

• 1,100 miles of streets
• 241 bridges
• 1,600 miles of sidewalk
• 453 miles of alleys

DDOT also coordinates policy with the Washington Metropolitan Area Transit Authority (WMATA) that manages the mass transit system, represents the District on the Metropolitan Washington Council of Governments' (COG) regional transportation planning and policy committees, and develops bicycle transportation facilities and policy.