Platform reconstruction work underway at Addison Rd and Arlington Cemetery stations
Taking a Look at the Construction Process
Preparing for Construction (January 2021)
During the pre-construction phase, which took place in January 2021, crews moved in heavy equipment needed for the project and installed temporary shoring under the existing platform edges to provide support during demolition and subsequent work.
Construction Begins: Platform Demolition (February-March 2021)
Once construction staging was completed and the two stations were closed to customers on February 13, 2021 the project team began the invasive work. The first few days of construction activities consisted of removing eight-foot sections of the existing platform edge by cutting and lifting them onto flatcars. Once removed, at a safe distance large cranes lifted out the sections using steel cable lifting slings. These pieces will then be loaded onto trucks and hauled away.
Platform demo - West Falls Church (2020)
Platform demo - Vienna (2020)
Platform demo - Arlington Cemetery (2021)
While the cutting and edge demolition work is taking place, crews also remove the existing platform paver tiles. This process entails a combination of robotic jackhammers (called "Brokks") and hand-held jackhammers to chip away the existing paver tile.
Platform tile demo - Addison Rd (2021)
Platform Repair & Rebar Installation (March-April 2021)
After the platform edges are cut and removed, new rebar will be inserted into freshly exposed edges along the entire platform. Crews will then install final formwork necessary to pour concrete for the new permanent edges. After the concrete cures, the final phases of platform repair work begin. This includes laying the new granite platform edge, pouring a new paver tile setting bed, and installing new slip-resistant platform tiles.
Rebar installation - Braddock Rd (2019)
Granite edge installation - Reagan National Airport (2020)
Slip-resistant tile installation - Reagan National Airport (2020)
Customer Experience Improvements Installation (May 2021)
Once the majority of platform reconstruction work is completed, crews can begin the process of installing station improvements including: energy-efficient LED lighting, slip-resistant tiles, stainless-steel platform shelters and larger digital screens to improve customer communication.
Installation of customer experience improvements - Van Dorn St (2019)
Follow along this spring as we provide various construction updates throughout the entire process. To make sure you receive the latest project news and updates, click here to sign up for email updates, follow Metro on Twitter, Facebook and Instagram, or check back regularly at wmata.com/platformsprogress.