As one of the busiest hubs in the Washington Metropolitan Area Transit Authority (WMATA) system, Rosslyn Station had long operated with a single entrance and one slow escalator serving approximately 36,000 daily riders. To relieve congestion and improve safety and accessibility, Arlington County advanced a major station modernization effort to enhance circulation and increase capacity. STV provided construction management services to deliver a series of critical station access upgrades that transformed the passenger experience at this high‑demand transfer point.
What challenges did STV address?
The constrained underground station required extensive excavation and structural coordination to create new access pathways without interrupting service. Improving capacity at a deeply buried station also meant introducing high‑speed vertical transportation, new tunnel connections and expanded mezzanine space, all while managing complex geotechnical conditions and minimizing disruptions in a dense urban setting.
What solutions did STV deliver?
Working alongside a team of geologists and engineers, STV oversaw construction of a new bilevel underground mezzanine, three high-speed, high-capacity elevators, a new emergency stairwell, fare gates, a station kiosk and a passenger tunnel connecting directly to the train platform. The team also managed the installation of an ADA‑compliant street‑level elevator head house and coordinated plaza improvements to strengthen the station’s street interface.
How does this project benefit the region?
The enhancements allow Rosslyn Station to serve approximately 2,000 additional passengers every hour, reducing crowding, improving accessibility and creating a safer, more efficient commuter environment for one of the Metro system’s most important hubs.
Key stats and accolades
- New bilevel underground mezzanine
- Three high‑speed high‑capacity elevators
- ADA‑compliant elevator head house and plaza improvements
- Added capacity for 2,000 more passengers per hour
