WSSC crews are arriving with heavy equipment at Bethesda Row, after earlier efforts narrowed the search area for a water main leak beneath Bethesda Avenue.
A valve shut off earlier stopped the flow of water on the busy street.
Crews are now focused on a section of street between Five Guys and ShopHouse, and the pavement is marked up for digging.
It's best to avoid this route for now, despite the temporary reopening of lanes on Bethesda Avenue.
Stay tuned here and on Twitter for updates at @BethesdaRow.