System Design, Integration and Installation of 11
Centralized Dynamic Message Signs (DMS) -
Washington, DC



  • Construction Inspection Services
  • On-Site Support


Sabra & Associates, Inc. (SAI) has been responsible for providing construction inspection services and ITS Project Management services for DDOT. The scope entailed inspection of the MOT, sign foundations, and installation of Dynamic Message Signs (DMS) at eleven locations on freeways and expresSAIys. In addition to these services, SAI also performed factory testing and system integration field testing.

Inspection of Installation includes:

  • Concrete testing
  • Traffic Control Signals
  • Hazards Identification Beacons
  • Intersection Control Beacons
  • Overhead Truss Sign Structures
  • Cantilever Sign Structures
  • Communications Systems
  • Factory Acceptance Testing (FAT)
  • Fiber optic Interconnect Systems
  • Electrical Service Equipment
  • Work Zone Traffic Control

Columbia Maryland

7055 Samuel Morse Drive
Suite 100
Columbia, MD 21046
Phone: 443-741-3500
Fax: 443-741-3700

Baltimore Maryland
1502 Joh Avenue
Suite 100
Baltimore, MD 21227

Phone: 410-536-3653
Fax: 410-536-3654

Washington, D.C.

100 M Street SE
Suite 550
Washington, DC 20003

Phone: 202-570-7080
Fax: 202-697-5007

Vienna, Virginia

8150 Leesburg Pike
Suite 630
Vienna, VA 22182

Phone: 703-942-8990


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