Launched in late August 2016 when Bertha passed beneath First Avenue and Union Street, #BalloonsOverBertha is yet another way to track progress on the SR 99 Tunnel Project.
The idea is to provide a visual of Bertha’s location relative to the surface. At the First Avenue and Union Street intersection, Bertha's cutterhead was about 170 feet below the surface
Learn more about the Alaskan Way Viaduct Replacement Program at www.alaskanwayviaduct.org or follow Bertha, the SR 99 tunneling machine, on Twitter @BerthaDigsSR99.
Tags: Seattle Washington United States US
Launched in late August 2016 when Bertha passed beneath First Avenue and Union Street, #BalloonsOverBertha is yet another way to track progress on the SR 99 Tunnel Project.
The idea is to provide a visual of Bertha’s location relative to the surface. At this location, Bertha's cutterhead was nearly 220 feet below the surface.
Learn more about the Alaskan Way Viaduct Replacement Program at www.alaskanwayviaduct.org or follow Bertha, the SR 99 tunneling machine, on Twitter @BerthaDigsSR99.
Launched in late August 2016 when Bertha passed beneath First Avenue and Union Street, #BalloonsOverBertha is yet another way to track progress on the SR 99 Tunnel Project.
The idea is to provide a visual of Bertha’s location relative to the surface. At the intersection of Second Avenue and Lenora Street, Bertha's cutterhead and the surface was about 200 feet.
Learn more about the Alaskan Way Viaduct Replacement Program at www.alaskanwayviaduct.org or follow Bertha, the SR 99 tunneling machine, on Twitter @BerthaDigsSR99.
Tags: Balloons over Bertha Seattle ^GP construction WSDOT SR 99 tunnel alaskan way viaduct replacement 2016 SR 99 highway tunneling machine
Launched in late August 2016 when Bertha passed beneath First Avenue and Union Street, #BalloonsOverBertha is yet another way to track progress on the SR 99 Tunnel Project.
The idea is to provide a visual of Bertha’s location relative to the surface. In this September 2016 photo, Pike Place Market fish mongers stand at the intersection of First Avenue and Pike Street in downtown Seattle. Here, the distance between the soles of their rubber boots and the top of Bertha's cutterhead was nearly 200 feet.
Learn more about the Alaskan Way Viaduct Replacement Program at www.alaskanwayviaduct.org or follow Bertha, the SR 99 tunneling machine, on Twitter @BerthaDigsSR99.
Launched in late August 2016 when Bertha passed beneath First Avenue and Union Street, #BalloonsOverBertha is yet another way to track progress on the SR 99 Tunnel Project.
The idea is to provide a visual of Bertha’s location relative to the surface. We took this photo a week before Halloween 2016, when Bertha's cutterhead was about 200 feet below the First Avenue and Pine Street intersection.
Learn more about the Alaskan Way Viaduct Replacement Program at www.alaskanwayviaduct.org or follow Bertha, the SR 99 tunneling machine, on Twitter @BerthaDigsSR99.
Tags: Seattle ^GP construction WSDOT SR 99 tunnel alaskan way viaduct replacement 2016 SR 99 highway Bertha tunneling machine Balloons over Bertha