For the first time since 2014, Dulles Toll Road rates could increase by about one-third next year.

Motorists have paid $2.50 at the mainline plaza and $1 at exit ramps, totaling $3.50 for the last four years.

Under the plan, tolls would rise to $3.25 at the main plaza and $1.50 at exit ramps, totaling $4.75 overall. Increases would continue in the years ahead, with a $6 toll from 2023 through 2027, $7.25 from 2028 through 2032, $8.75 from 2033 through 2037, and $10 from 2038 through 2042.

Public hearings on the proposal are set for the summer, most likely in July and August. A vote authorizing the Metropolitan Washington Airports Authority to proceed with the process for proposed rate adjustments is set for June 20. Board action on final increases would occur in mid-October.

Officials said the toll increase is necessary to prevent toll revenue from falling below the minimum required to cover debt service costs. Tolls are expected to fund about $2.8 billion of the $5.7 billion cost of the Silver Line project.

Photo by Fatimah Waseem; graphic by MWAA