On Wednesday, alert notifications led to the closure of a key road near the U.S. Capitol due to concerns regarding a potential sinkhole. Congressional offices were informed shortly after 4:13 p.m. Eastern Time.
The notification titled “Road Closure – Egress of Southwest Drive” detailed the road closure caused by a suspected sinkhole. This message was circulated among congressional staff, indicating action had been taken by law enforcement.
Southwest Drive is crucial for accessing the Capitol complex and surrounding congressional buildings. Images shared by Axios congressional reporter Andrew Solender on X depicted a small area of the roadway showing signs of depression.
Authorities secured the area with yellow police line tape stating “POLICE LINE DO NOT CROSS,” along with orange cones and black bollards. Several uniformed personnel were also present on-site.
Here’s the sink hole at the U.S. Capitol: https://t.co/jHjKPRuczg pic.twitter.com/hkmeoWdUKW
— Andrew Solender (@AndrewSolender) March 18, 2026
As of now, no specific details have been provided regarding the size or cause of the sinkhole, nor how long the road will remain closed. It’s unclear if this issue is linked to underground systems, common in D.C. for water or stormwater.
Thankfully, there have been no reports of injuries or vehicles being affected. The closure is limited to the egress section of Southwest Drive and does not impede access to major thoroughfares or the Capitol building itself.
The Architect of the Capitol and U.S. Capitol Police manage the roadways in this area, frequently adjusting routes for members of Congress and their staff. Despite the road closure, congressional sessions continued as planned, with no official statements issued by law enforcement or elected officials related to the event.
