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.