FDT Crews Reinforce the Alaskaan Way Viaduct to Prepare for Tunnel Boring

FDT Specialty Contracting Division was spotlighted in the Daily Journal of Commerce (DJC) in March by Journal Staff. The DJC article went on to say: “Crews are getting ready to wrap a section of the Alaskan Way Viaduct’s support columns in carbon-fiber to bolster against earthquakes and a tunnel boring machine that will pass below.” “It’s like wrapping an injured ankle,” said Matt Preedy, WSDOT Alaskan Way Viaduct Replacement Program deputy administrator, in a statement. “Reinforcing this section allows us to keep the viaduct safety open to traffic while we build the tunnel, but ultimately this is a short-term fix because the underlying structure remains at risk to earthquakes.” Reinforcing the viaduct is a multi-step process. It starts with sandblasting a half-century of grime from damaged areas along a two-block section between South Washington and Columbia Streets in Pioneer Square. Before the wrap goes on, crews will fill cracks in the concrete and round out corners where the concrete is spalling. Exposed rebar will be cleaned and fresh concrete will be placed in the spalled areas.

To read the entire article please visit: seattle.gov

For more information on this project please go to: wsdot.wa.gov