MATOC Alerts (@MATOC) / X

MATOC Alerts

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MATOC Alerts

@MATOC

This is the Official X/Twitter feed for the Metropolitan Area Transportation Operations Coordination (MATOC) Program. Follow us Monday-Friday, 4:30am-8:00pm.

National Capital Region (NCR)

Joined April 2009

MATOC Alerts
@MATOC
Oct 17, 2025
UPDATE: Police Activity. US-29 NB/SB on the Key Bridge. Washington DC, NW. Inbound lanes of the Key Bridge remain blocked. Expect ongoing closures on M Street between Wisconsin Avenue and the Key Bridge. Heavy delays remain, avoid the area and seek alternate routes
MATOC Alerts
@MATOC
Mar 27, 2024
UPDATE: Road Closure. I-695 EB/WB at Francis Scott Key Bridge. Baltimore City, MD. The I-695 southeast corridor remains closed between MD-10 (Ex 2) and MD-157 (Ex 43). Be aware of size/HAZMAT restrictions when using alternate harbor crossings (I-95 & I-895). Expect delays.
MATOC Alerts
@MATOC
Jul 4, 2022
Police Activity. I-495 EB at US-29 (Exit 30), Montgomery County, MD. All traffic is stopped and diverted to US-29 SB (Exit 30B). Inner Loop delays begin after Connecticut Ave, approximately 3 miles and growing. Seek alternate routes.
MATOC Alerts
@MATOC
Jun 24, 2022
Protest Activity. South Capitol Street at South Capitol Street Bridge, SE/SW. Washington, DC. All lanes blocked inbound and outbound, follow police direction in area and seek alternate routes. Delays building.
MATOC Alerts
@MATOC
Sep 6, 2023
FINAL: Police Activity. US-29 SB on the Key Bridge. Washington DC, NW. All outbound travel lanes of the Key Bridge have reopened. Expect continuing police presence and closures elsewhere in the area. Delays remain on area roads in Georgetown and Foggy Bottom.
MATOC Alerts
@MATOC
Apr 23, 2025
Multi-Vehicle Crash. I-495 WB (Outer Loop) past MD-650 (Exit 28/New Hampshire Avenue). Montgomery County, MD. 2 left lanes are blocked, 2 right lanes get by. Delays are approximately 2 miles.
MATOC Alerts
@MATOC
Feb 12, 2025
FINAL: Weather Closure. I-95/495 SB (Inner Loop) ramp to I-95 SB (Exit 170). Fairfax County, VA. The ramp from the Inner Loop to I-95 SB General Purpose Lanes has reopened. Springfield Interchange ramps to the Express Lanes remain blocked.
MATOC Alerts
@MATOC
Jan 24, 2024
UPDATE: Multi-Vehicle Crash with Injury. I-495 NB (Inner Loop) at I-66 (Exit 49). Fairfax County, VA. All lanes remain blocked. Traffic is diverted to the Express Lanes. 1 right lane of Express Lanes is blocked. One left Express Lane is open. Delays begin before VA-236.
MATOC Alerts
@MATOC
Dec 11, 2023
UPDATE: Tractor Trailer Crash with Injury. I-495 EB (Inner Loop) at US-29 (Exit 30). Montgomery County, MD. 3 right lanes remain blocked. 1 left lane open. Inner Loop delays remain, beginning before MD-97. Outer Loop rubbernecking delays begin before the I-95 Interchange.
MATOC Alerts
@MATOC
Mar 26, 2024
UPDATE: Road Closure. I-695 EB/WB at Key Bridge Baltimore City MD. Road remains closed from ship striking the Key Bridge, causing collapse. OL diverted to MD-10 (Ex 2) IL diverted to MD-157 (Ex 43) Use alternate harbor crossings (I-95 & I-895) be aware of size/HAZMAT restrictions
MATOC Alerts
@MATOC
Apr 16, 2024
Crash with Injury. I-66 EB before Westmoreland Street (Exit 68) Arlington County, VA. All travel lanes are blocked. Follow police directions in the area. Delays are building, beginning before the VA-267 Interchange.
MATOC Alerts
@MATOC
Sep 9, 2021
UPDATE: Tractor Trailer Crash w/ Injuries. I-66 EB before I-495 (Ex 64/Capital Beltway). Fairfax County, VA. All closures remain the same. Traffic is detoured onto VA-243 (Ex 62/Nutley St). Delays start VA-286 (Ex 55/Fairfax County Pkwy), approximately 6 miles to the detour.
MATOC Alerts
@MATOC
Sep 6, 2023
Police Activity. US-29 SB on the Key Bridge. Washington DC, NW. 1 right outbound lane of the bridge is blocked, 1 left lane gets by. Delays extend to M Street, Canal Road, the Whitehurst Freeway, and K Street. Avoid the area, seek alternate routes out of Georgetown/Foggy Bottom.
MATOC Alerts
@MATOC
Jul 1, 2021
UPDATE: Tractor Trailer Crash with Injury. I-495 WB (OL) at I-270 (Exit 35). Mont Co, MD. All lanes remain blocked. Traffic is diverted to MD-355. OL delays begin before MD-185. Extended closure expected. No access to I-270 from the OL. No access to OL from MD-355.