The plan is to create a one mile long auxiliary lane by connecting the Washington Blvd on-ramp to the off-ramp at the Dulles Airport Access Road. Workers will also construct a new 12-foot wide shoulder with full-strength pavement capable of carrying traffic during emergencies. Today, VDOT awarded a $23 million contract for the project to The Lane Construction Corporation.
A similar project was completed in 2011, when the acceleration lane at the Fairfax Drive on-ramp was extended to the deceleration lane at the Sycamore Street off-ramp. That created a continuous lane that stretches for nearly two miles.
The improvements slated to begin next year are scheduled to be completed in the summer of 2015. A third, similar project is planned between Lee Highway and Glebe Road, but it is not yet fully funded.
VDOT will try to do most of the work overnight to minimize the impact on drivers. More details about lane closures and traffic impacts will be announced when the construction schedule is finalized.