Maryland Department of Transportation State Highway Administration

(D3) District 3 Office

9300 Kenilworth Avenue
Greenbelt, MD 20770
Prince George's County
Phone:301-513-7300 or
800-749-0737
FAX:301-513-7415
[email] [map/direction] (PDF)

District 3​ Maintenance Shops

(30) Gaithersburg Shop
502 Quince Orchard Road
Gaithersburg, MD 20878
Montgomery County
Phone: 301-948-2477
888-795-0013
FAX:301-948-8714
[map/direction] (PDF)

(32) Fairland Shop
12020 Plum Orchard Road
Silver Spring, MD 20904
Montgomery County
Phone: 301-572-5166
888-252-9580
FAX:301-572-5212
[map/direction] (PDF)

(33) Laurel Shop
400 Second Street
Laurel, MD 20707
Prince George's County
Phone: 301-776-7619
800-785-2602
FAX:301-317-5624
[map/direction] (PDF)

(34) Marlboro Shop
6500 S.E. Crain Highway
Upper Marlboro, MD 20870
Prince George's County
Phone: 301-952-0555
888-795-0012
FAX:301-952-1657
[map/direction] (PDF)

District 3 Press Releases

Jun242026

State Highway Administration to Improve Pavement Along I-495/I-95 (Capital Beltway) in Prince George's County Starting Next Week

Motorists Can Expect Multiple Lane Closures During Overnight Hours
Jun242026

State Highway Administration Begins Intersection Improvement Project on MD 650 (New Hampshire Avenue) in Prince George's County

Project Will Enhance Pedestrian Safety in Langley Park Area
Jun232026

State Highway Administration Begins Traffic Signal Project on MD 650 (New Hampshire Avenue) in Prince George's County

Project Will Enhance Pedestrian Safety in Langley Park Area

Jun162026

State Highway Administration Begins Replacement of MD 382 (Crood Road) Bridge Over County Line Creek in Prince George's County

Work Includes Demolition, Replacement of 63-Year-Old Structure in Brandywine
Jun112026

State Highway Administration Installing Bus Lanes on MD 355 (Wisconsin Avenue) to Support Bus Service During Metro Rail Station Closures

Metro Closing Three Stations Along Red Line for Summer Construction
Jun92026

***TRAFFIC ALERT*** State Highway Administration to Install Concrete Barriers on I-495 (Capital Beltway) in Montgomery County

Drivers can Expect Overnight Triple-Lane Closures Wednesday and Thursday
May292026

State Highway Administration to Host Open House for MD 210 at Palmer Road/Livingston Road and Old Fort Road (North) Interchange Project in Prince George's County

Public Invited to Learn More About the Project and Provide Feedback
May222026

***TRAFFIC ALERT*** State Highway Administration Permits WSSC Water to Begin Two Water Main Replacements in Prince George’s County

Drivers Should Plan Extra Travel Time During Utility Repair Work

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