Transportation District Department Of--director Ofc Of The, Traffic Services Administration, Construction Procurement Div Washington, DC 20001 Phone : (202) 671-2270 Business Category Government Offices-Federal Government Offices & Public Schools Public Works Department Of--administrative Services Ofc Of, Construction Contract, Administration Washington, DC 20001 Phone : (202) 671-2270 Business Category Government Offices-Federal Government Offices-City Village & Twp Government Offices State & Local Government Offices & Public Schools District Of Columbia Government--transportation District Department Of, Construction Procurement Division 2000 14th St Nw Ste 5 Washington, DC 20009 Phone : (202) 671-2270 Business Category Government Offices-City Village & Twp Government Offices State & Local Government Offices & Public Schools