Drivers on Route 50, or Arlington Boulevard, can expect two lanes to be closed near Courthouse Road and 10th Street in Arlington beginning mid-May, Virginia Department of Transportation officials said. The weeknight closures will start at 9 p.m. and end at 5 a.m.

The $39 million project will improve safety and accessibility at the interchanges by rebuilding bridges and adding acceleration and deceleration lanes, among other improvements, state traffic officials said. The construction is expected to be completed by the fall of 2013.

Four closures and detour schedules have yet to be announced.

An idea of what westbound Route 50 at Courthouse Road will look like by the fall of 2013.

At various times throughout the project, the northbound ramp to Courthouse Road and Fairfax Drive traffic will be closed to westbound Route 50. Fairfax Drive between Courthouse Road and Scott Street will be closed. The southbound 10th Street ramp to eastbound Route 50 and Fairfax Drive will be closed. Detours will be scheduled to for removal of the Courthouse Road bridge over Route 50.

Details will be discussed at a community meeting, which will be held at 6 p.m. May 3 in the Arlington County Boardroom, 2100 Clarendon Blvd.

The $39 million project includes public art, signalized intersections and a pathway for pedestrians and bicyclists, as shown here under the 10th Street bridge. (This image shows what westbound Route 50 at 10th Street will look like in the fall of 2013.)