December 20, 2023

Maryland State Highway Administration Work to Improve Surface of I-495 in County Will Lead to Extensive Lane Closures Through End of Year

The Maryland Department of Transportation State Highway Administration has started a project to maintain pavement and improve ride quality on I-495 (the Capital Beltway) that will impact Montgomery County drivers through the end of the year. The work will be done five nights a week between MD 191 (Bradley Boulevard) and east of Linden Lane and between east of Northwest Branch Anacostia River and US 29 (Colesville Road).

The work will be performed nightly from 9 p.m.-5 a.m., Sundays through Thursdays. The work is scheduled to be completed by the end of the year, weather permitting. At times, as many as three lanes will be closed in each direction. Closing three travel lanes will provide a safe buffer to enhance protection of road workers.

The State Highway Administration’s contractor, Pavement Contracting Services, Inc. of Glenn Dale, will use cones, barrels and arrow boards to guide motorists safely through the work zone.

The State Highway Administration said it is aware that lane closures are inconvenient, but are necessary to maintain a world-class transportation system. Drivers are asked to stay alert, stay focused, look for reduced speed limits and driving pattern changes. They must slow down in construction zones. 

Motorists in need can dial #77 on their mobile devices for roadside assistance.

For a list of all major State Highway Administration projects, visit the project portal or the homepage at For a look at real-time traffic conditions, go to