On Rt. 712 (Columbia Rd) in the County of Fairfax from Columbia Rd; Rt. 620W (Fairfax County) to Rt. 712N (Fairfax County); Rt. 2671N/S (Fairfax County), motorists can expect potential delays in this area from 04/29/24 at 12:00 AM until 04/29/24 at 11:45 PM due to construction activities. The north through lanes are closed. The south through lanes are closed.