 Slow traffic northbound on I-95 in Virginia. As you approach Quantico, heading up towards Dumfries through that whole stretch, the left and center lanes are blocked. Traffic only gets by single file to the right. That's probably going to take you an extra 20 minutes or so to go through there. So plan accordingly with all the truck traffic and whatnot going through there. Headed north out of Stafford County. Southbound, there is a separate work zone just south of Quantico. Takes away the right lane for a short stretch. Not much volume going the other way on the way down towards Fredericksburg.