VDOT outlines I‑495 NEXT progress, 'Big Beam Weekend' and Southside NEPA study; supervisors press for community protections

VDOT officials on Thursday briefed the Fairfax County Transportation Committee on two Beltway projects and a focused construction operation planned for early next year. Michelle Shropshire, VDOT’s Mega Projects Director for the Northern Virginia District, said the $660,000,000 I‑495 NEXT public‑private partnership with Transurban has been under construction since 2022, with the new express lanes expected to open to the public by the end of next year and the overall project completed by mid‑2026.

Shropshire described a concentrated weekend operation — dubbed “Big Beam Weekend” — targeted for late January to set five large bridge girders each weighing roughly 70–80 tons. VDOT plans to condense the most disruptive work over a single weekend to shorten the duration of impacts, using nighttime lane closures and signed detours. The agency said it is coordinating incident management and emergency access with state police, Fairfax County police, fire and rescue and regional transportation operations teams, and will begin a public outreach campaign after the new year.

The meeting also included a separate presentation on the I‑495 Southside NEPA study, which would evaluate one‑ and two‑express‑lane alternatives to provide continuity of managed lanes on the Beltway’s southern segment. Shropshire said the environmental study covers the corridor from the Springfield Interchange east across the Woodrow Wilson Bridge to the Maryland 210 interchange, and uses a 2050 horizon year in its travel‑time modeling. Modeling cited by VDOT shows steep travel‑time increases under a no‑build scenario — including projections of up to about 152 minutes in an eastbound local lane peak in 2050 — with express‑lane alternatives providing travel‑time savings in many cases.

Supervisors praised recent work on the Georgetown Pike span but pressed VDOT for more detail on outreach and design changes tied to public comments, especially the revegetation plan near noise walls and private property. Shropshire said VDOT has tracked public input, will finalize the revegetation design by year‑end and plans to share the revised plan with county staff and the public early next year. Several board members urged one‑on‑one engagement with impacted homeowners and recommended coordinating transit and public‑information strategies around the Big Beam Weekend to reduce congestion.

Board members also raised concerns about how the Southside project would affect nearby arterials if traffic is diverted from express lanes and asked what would happen if Maryland declines to participate. "If Maryland doesn't support this project…are we also looking at truncating the project and what does that do to the benefits?" one member asked. VDOT said the current NEPA study focuses on the three alternatives presented but that traffic analysis is being used to make the regional case and to evaluate whether shorter build options could still deliver meaningful benefits.

Shropshire repeatedly emphasized efforts to minimize additional right‑of‑way impacts, to preserve space for potential future Metrorail conversion in the corridor, and to include pedestrian and bicycle improvements where feasible. The agency also listed a schedule that includes additional public outreach in early 2025, a public hearing mid‑2025, and an anticipated regional planning vote on inclusion in the Visualize 2050 plan later next year.

The committee did not take a formal vote on either project; the presentations closed to questions and staff follow‑up commitments. The next publicly scheduled steps are VDOT’s revised revegetation presentation to county staff and the Southside NEPA public outreach and hearing process in 2025.