Standards

FAQ


This Compendium page contains all DDOT standards, including the Standard Specifications for Highways and Structures, Standard Drawings, Design and Engineering Manual, Environmental Standards, and more. 

The District of Columbia Department of Transportation (DDOT) Standard Specifications for Highways and Structures are standard for all DDOT contracts awarded by the Mayor of the District of Columbia, the Council of the District of Columbia, and/or the Contracting Officer. The Standard Specifications shall also be used for all the construction activities and material control within the Public Space of the District of Columbia.




Design and Engineering Manual 


2019 DEM 


Revisions and Memos

DEM Approval Memo


Previous Versions

2017 DEM

2009 DEM


Right-of-Way Manual


Environmental Standards 


Environmental Manual


Environmental Management System


Pedestrian Safety And Work Zone Standards


Streetcar Manuals 




Bridge Manuals 


Construction Manuals


Construction Management Manual (2021)


Construction Management Manual (2010)

Work Zone Manuals 


Temporary Traffic Control Manual / Work Zone Mobility Policy

 


Guidelines for Traffic Control in Work Zones / Work Zone Management Manual 


Utility Manuals


Utility Policies and Procedures


Utility Typicals