Several readers have sent us messages regarding a crash that has shut down southbound I-270. According to Montgomery County Fire and Rescue Services (MCFRS) Chief spokesperson Pete Piringer, the collision occurred at the southbound I-270 spur in the area of Democracy Blvd. Crews are working to open at least one lane for vehicles to pass.

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The Maryland Department of Transportation State Highway Administration (MDOT HSA) has released additional information on the closure of the merge lane from the local lanes to the main lanes of northbound I-270 at Shady Grove Road, which is part of the next phase of the agency’s ramp metering project in Gaithersburg. The closure will support the installation of a ramp metering system at the I-370/MD 200 interchange, with paving and intermittent lane closures scheduled through summer 2025.

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3:33pm Update: All travel lanes reopened on Outer Loop I495 past Old Georgetown Rd (MD187) from earlier traffic incident. Expect residual delays.

UPDATE: “Multi-Vehicle Crash with Injury. I-495 WB (Outer Loop) past MD-187 (Exit 36). Mont Co, MD. All OL lanes are blocked. Traffic is diverted to I-270. Delays begin before MD-355. The ramp from MD-355 northbound to the OL is also blocked. An extended closure is expected”


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