New traffic patterns are coming Monday to the Arlington Memorial Bridge in Washington, D.C., as part of a massive rehabilitation of the span/NPS

Starting Monday, the National Park Service will begin a long-term change to the traffic pattern on Arlington Memorial Bridge in Washington, D.C. This change will reduce the bridge’s capacity from six to three lanes and one sidewalk until the rehabilitation is finished in 2021.

To help people plan their trips across and around Arlington Memorial Bridge, new detour maps and animations are available for drivers, cyclists and pedestrians on the project website. 

Crews will work to implement the new traffic pattern in the overnight hours Sunday into Monday morning. Drivers, cyclists and pedestrians should expect to see the new three-lane and single sidewalk configuration in place no later than 4 a.m. Monday. 

For the next two years, there will be one constant eastbound and one constant westbound lane with a reversible third lane to accommodate rush hour traffic. Monday through Friday, the reversible lane will run eastbound (into D.C.) from 4 a.m. to noon and westbound (toward Va.) from noon through the overnight hours until 4 a.m. On Saturdays, Sundays and federal government holidays, two lanes will always run eastbound and one lane will always run westbound. Drivers should watch the overhead signals on the bridge to know which lanes are open for travel in their direction. 

Traffic engineers used the best data available to determine the schedule for the reversible lane. Noon and 4 a.m. were chosen to minimize delays for commuters. The Park Service expects to see some backups and heavier delays during the first week or two as drivers adjust to the new traffic pattern. Traffic engineers will monitor impacts, and may adjust the reversible lane schedule if the monitoring shows there may be ways to improve traffic flow.

Drivers and cyclists should exercise extreme caution and expect to see construction workers in the road 30 minutes before and after the scheduled times for traffic shifts. Detours for pedestrians and cyclists will be signed. Cyclists and pedestrians are reminded to please use crosswalks, and refrain from taking shortcuts across these busy roads. 

Since June, the NPS and Federal Highway Administration have been preparing the bridge for a complete rehabilitation.

The work that begins Monday is the bulk of the much anticipated $227 million full rehabilitation project announced in December 2017. Over the past seven years, the NPS and FHWA made emergency temporary repairs while planning the larger rehabilitation. Without this complete rehabilitation, the bridge’s continued and accelerated deterioration would have required it to close to 68,000 daily vehicles by 2021. The bridge’s current 10-ton load restriction will stay in place for the duration of the project.