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Catwalks set the stage for installation of suspension cables on new Bay Bridge

I can't help but think of Rachel Maddow's "big things" spot when I look at these images of the new Bay Bridge. This is pretty darned big.

Ironworkers will climb a 35-degree slope on the 1060-foot catwalks to install four suspension cables in 2012, according to a San Francisco Chronicle story. The bridge has been under construction since 2002 with an estimated price tag of $6.3 billion and will have the world's tallest self-anchored suspension (SAS) tower once completed.

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Members of the media walk on the deck of the newly constructed eastern span of the San Francisco-Oakland Bay Bridge during a media tour of the self-anchored suspension span tower on August 29 in Oakland, California. Construction crews have erected twelve foot wide catwalks that connect to the San Francisco-Oakland Bay Bridge self-anchored suspension span's tower and crews will begin to lay the nearly one mile of main cable beginning in early 2012. The bridge has been under construction since 2002 with an estimated price tag of $6.3 billion and will have the world's tallest self-anchored suspension (SAS) tower once completed.

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Catwalks hang over a section of the newly constructed eastern span of the San Francisco-Oakland Bay Bridge during a media tour of the self-anchored suspension span tower on August 29 in Oakland, California.

Justin Sullivan / Getty Images

A worker stands on the bottom of a 1,060-foot catwalk that hangs over the newly constructed eastern span of the San Francisco-Oakland Bay Bridge during a media tour of the self-anchored suspension span tower on August 29 in Oakland, California.

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Justin Sullivan / Getty Images

A model of the eastern span of the San Francisco-Oakland Bay Bridge self-anchored suspension span tower is on display inside the CalTrans public information office on August 29 in Oakland, California.

Check out a previous post on the Bay Bridge.