Today’s the day: Bertha to break through

Posted on April 4th, 2017 by Laura Fonda

Bertha, the tunneling machine that has been making her way underneath 99, is scheduled to break through the final 5 foot southern wall today, Tuesday, April 4,

The entire route comes in at 9,270 feet. Here’s a shot of the assembly wall where she’s set to break through. A live stream is available online. Early this morning, Bertha was roughly 30 feet from her journey’s end. She’ll start boring through the final wall at 8am and her 5 foot path is expected to be about a foot per hour trip.

Here’s her path, the machine is set to break through near 6th Ave N and Thomas St today:


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