Traffic is backed up along Route 123 northbound this morning due to a water main break.
The break is near the intersection of Route 123 (Dolley Madison Boulevard) at Great Falls Street.
Fairfax County Police say the right lane is getting by on the northbound side.
However, commuters may want to consider alternate routes this morning.
For more transportation info, check out our commute map here that shows traffic congestion and gas prices locally.