On Rt. 621 (Evergreen Mills Rd) in the County of Loudoun at Ryan Rd; Rt. 772E/W (Loudoun County); Rt. 617E (Loudoun County), motorists can expect potential delays in this area from 04/19/24 at 9:30 AM until 04/19/24 at 2:00 PM due to maintenance activities. All north lanes are alternating closures. All south lanes are alternating closures.