Monday, April 8, 2013

Bertha’s cutterhead is ready for its next trip

This is the cutter head for the boing machine to bore under the Seattle waterfront and replace the Alaska Way Viaduct.

There are several photos in this stream showing the unloading operations in Seattle.

Note the people on the right. Take a rough guess/count on the number of tires on the trailers used to haul this.

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8 comments:

  1. UnknownApril 9, 2013 at 8:47 AM

    Something around 150 tires?

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  2. UnknownApril 9, 2013 at 2:08 PM

    Or more if its dualies

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  3. KellomApril 10, 2013 at 10:02 AM

    352 tires is my guess.

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  4. UnknownApril 10, 2013 at 8:19 PM

    It's at least 340 tires.

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  5. Jeff CurtisApril 10, 2013 at 8:56 PM

    Maybe they'll reply to my question guys. I asked. (;

    You too can "Follow" Bertha. http://www.wsdot.wa.gov/Projects/Viaduct/About/FollowBertha

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  6. Jeff CurtisApril 15, 2013 at 10:02 PM

    Hi Jeffry,

    The transport vehicles moving the TBM components have 96 axles with 8 tires per axle, for 768 tires total. Please let me know if you have any additional questions.

    Lynsey Gilchrist Burgess
    SR 99 Tunnel Project
    Public Information Specialist

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  7. evanevan02April 15, 2013 at 10:19 PM

    Wow... Impressive but understandable being that you need the proper number to support the load

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  8. UnknownApril 15, 2013 at 11:42 PM

    I ended up counting 736, is that extra section of trailer in the back, in the front too? I need a better picture. Probably should have looked for one. How wide is this load anyways? Any Guesses?

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