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Welcome to Maryland 511 and CHARTWeb!

CHART Web is Maryland's official 511 Traveler Information service. Maryland 511 provides travelers with reliable, current traffic and road closure information, as well as weather related traffic events and conditions. MD 511 helps motorists reach their destination in the most safe and efficient manner when traveling in Maryland.

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CHART Web maintenance on Tuesday, May 11th between

10:00AM and 12:00PM. Site video and data feeds may be unavailable during this time.