Traffic control services
Traffic Control in Loudoun County, VA
Flaggers, lane closures and traffic control plans for utility, fiber and road work in Loudoun County, including Ashburn, Sterling and Leesburg.
Crews for work in Loudoun County
LADMA crews work in Loudoun from our Northern Virginia location. We supply traffic control for contractors, utilities and property owners:
- Flagging with ATSSA-certified flaggers
- Lane, shoulder and road closures
- Sidewalk closures and pedestrian detours
- Arrow boards, message boards and truck-mounted attenuators
- Traffic control plans for your permit
- Emergency and short-notice work, with 24/7 dispatch

Who permits work in Loudoun County
| Road or topic | Who handles it | What to know |
|---|---|---|
| Most public roads | VDOT | Land Use Permit |
| Town of Leesburg streets | Leesburg Public Works, Transportation Division | Right of way permits. VDOT does not maintain Leesburg streets except certain major primary roads |
| Town of Purcellville streets | Town of Purcellville | VDOT does not maintain town streets except certain major primary roads |
Work on a VDOT highway needs a VDOT Land Use Permit, and setups follow the Virginia Work Area Protection Manual. VDOT's permit rules keep work from interfering with peak traffic on heavily traveled highways.
Local rules to plan around
- Outside Leesburg and Purcellville, public roads are typically VDOT roads, so most jobs need a VDOT Land Use Permit.
- VDOT must approve blocking or detouring traffic before it happens.
Office names, forms and lead times change. Confirm the current rules with the agency before you apply.
What to send for a quote
- The address, or the road and the nearest cross streets
- What needs to close: lane, shoulder, sidewalk or the full road
- Dates, work hours, and whether the work is by day or by night
- How many flaggers or what equipment you expect to need, if you know
- Your permit or permit conditions, if you already have them
See also traffic control in Northern Virginia, traffic control plans in Northern Virginia, virginia permit coordination.
Our nearest office
LADMA Traffic Control, Northern Virginia office, Fairfax
8280 Willow Oaks Corporate Dr, Suite 600, Fairfax, VA
Need traffic control in Loudoun County?
Tell us where the work is and what needs to close. We will come back with a quote.