DC/Virginia: Express Lanes open on I-395 this Sunday. Here’s what you need to know.

Major changes are coming to I-395. Sunday night new Express Lanes open on an 8-mile stretch from Edsall Road to the 14th Street Bridge.

The exact time the lanes open depends on how long it takes crews to uncover new signage along the highway this weekend.

The project adds an extra lane, making a total of three reversible lanes.

If you take the new lanes, you’ll need an E-ZPass or E-ZPass Flex to pay a toll or to carpool. Motorcycles and buses travel for free.

Toll prices will be based on a dynamic pricing system, like the one used on I-95 and I-495. Overhead pricing signs will post current costs and update every 10 minutes.