Traffic Control & Flagging in Maryland

6 traffic control and flagging companies in 6 cities and towns. Flagging crews, cones, barricades, signs and work-zone traffic plans for road and utility jobs. Typical timing: often 1–2 weeks; emergency call-outs from some companies.

How Many Traffic Control and Flagging Companies Are in Maryland?

We list 6 traffic control and flagging companies in Maryland, across 6 cities and towns; the most are in Waldorf (1), Capitol Heights (1), Gaithersburg (1). Typical timing is often 1–2 weeks; emergency call-outs from some companies. Ask each for a written quote with every fee included and compare the totals.

Updated November 6, 2026 · Sources: OpenStreetMap, Overture Maps, CMS NPI registry and state data (refreshed November 6, 2026).

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Before You Commit

  1. Are your flaggers certified as my state requires?
  2. Can you draw and submit the traffic control plan and permit?
  3. Does the setup follow the MUTCD and state supplement?
  4. Are you insured, and can I be added as additional insured?
  5. What is the minimum call-out and overtime rate?

10582 Metropolitan Ave, Kensington

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Traffic Control & Flagging in every state · Questions to Ask Traffic Control & Flagging

Listings: © OpenStreetMap contributors (ODbL), Overture Maps Foundation (CDLA Permissive 2.0), CMS NPI registry, state agencies · Data last updated November 6, 2026 · Sources & method