Update: All lanes of MD-355 (Frederick Rd) from MD-27 (Ridge Rd) to Henderson Corner Rd have reopened. Expect residual delays.
11:30am Update: The Montgomery County Police Department (MCPD) has released additional information regarding a fatal pedestrian collision that occurred Wednesday, August 20, 2025, at the intersection of Frederick Road and Ridge Road in Germantown.
Update: All lanes of I-495 Outer Loop at the I-270 Spur have reopened. Expect residual delays. Alert Montgomery has issued a severe traffic alert for Wednesday afternoon, reporting that all […]
Updated to include summary of events by MCPD
A severe traffic alert was issued this evening at 6:46 PM for Montgomery County, warning drivers of a significant road closure on MD-650 (New Hampshire Ave). All lanes are currently closed from MD-97 (Georgia Ave) to Sapling Ridge Ln in Brookeville due to a major traffic incident. The Montgomery County Police Department (MCPD) is actively investigating the collision, which has been confirmed as fatal.
The Montgomery County Police Department (MCPD) is investigating a serious collision that occurred Saturday morning near Spectrum Avenue and N. Frederick Avenue (MD 355) in Gaithersburg.
A fatal head-on collision early Wednesday morning has closed a portion of westbound Sandy Spring Road in Burtonsville. The Montgomery County Police Department issued a traffic advisory at 4:14 am, warning drivers to seek an alternate route and to expect significant delays.
Update: The repairs have been completed and Wisconsin Ave. has reopened as of 6am Wednesday morning.
WSSC crews have been working to repair a significant water main break that occurred on Monday along Wisconsin Avenue (MD-355) near East West Highway (MD-410) in Bethesda. The incident caused substantial damage to the southbound lanes of Wisconsin Avenue, leading to a multi-day closure for emergency repairs.
A multi-vehicle crash on I-495 Southbound Outer Loop at the American Legion Bridge led to significant traffic disruptions early this morning, according to updates from the Metropolitan Area Transportation Operations Coordination (MATOC).
Motorists Can Expect Overnight Single-Lane Closures; Drivers Urged to Plan Extra Drive Time During Work Hours
The Maryland Department of Transportation State Highway Administration began resurfacing MD 191 (Bradley Boulevard) in both directions between 6421 Bradley Boulevard and Bradmoor Drive in Bethesda on July 24. The work is expected to be completed by mid-September, weather permitting.
The Maryland Transportation Authority (MDTA) has shared the following regarding Bay Bridge traffic the week of August 3-9.
In April, a traffic light was installed at the intersection of Watkins Mill Rd. and Russell Ave. in Gaithersburg. After a period of time where the lights remained covered and a brief period of time consisting of a flashing red lights, the traffic lights are now fully operational.
The Montgomery County Police Department (MCPD) is currently investigating a serious pedestrian collision that resulted in the closure of East-West Highway between Sundale Drive and Rosemary Hills Drive in Silver Spring. The incident was reported to authorities at 8:56 pm on Saturday night.