Even during off times, I-95 sees heavy traffic. So what would happen if all southbound lanes - except the HOV lanes - closed?
Well, starting at about 9:30 p.m. on Friday night, all southbound lanes from the Fairfax Parkway until Lorton are expected to close due to traffic. They are not expected to reopen until about 9:30 a.m. Saturday morning.
A lot of motorists will likely get caught in detours or squeezed into the HOV lanes, but the worst of the traffic jams are expected on Saturday morning, when approximately 7,000 vehicles per hour are estimated to funnel through.
The closure will allow crews to move 109-ton steel beam into place for a new flyover ramp, which will eventually support traffic into the 95 express lanes. Some motorists say they just have to focus on the benefits to come once all of the road work is finally finished.
Message boards will direct commuters to use 1 of 3 available detours. 95 South motorist heading twoard the Fairfax County Parkway or Lorton Road will be detoured onto Backlick Road (Exit 167). That will access Fairfax County Parkway via Furnace Road and Lorton Road via Route 1.
Through traffic will be diverted to the HOV lanes near mile marker 169, just south of Franconia-Springfield Parkway.
If bad weather cancels work, closures will be rescheduled for Saturday night and Sunday morning. Nightly closures will also continue through next week along the same stretch of road.
Construction of the 95 Express Lanes Project is 40 percent complete and the new lanes are expected to open in late 2014.