Seattle, Washington, April 4, 2017 – After many delays, Bertha, the tunneling machine reached its destiny yesterday by breaking through the concrete wall of the disassembly vault.  Yesterday’s event was a major milestone for this incredible infrastructure project.  The completion of the SR-99 Alaska Way Viaduct Replacement Projection will then lead to the exciting redevelopment of Seattle’s Waterfront.  For more details and photos click here:  Bertha Breaks Through

Bertha Breaking Through