Little known outside of its home states of Nevada and Arizona, this new bridge has been overshadowed by its more venerable and certainly larger neighbor but the Hoover Dam Bypass Bridge is certainly something to be seen.

Were it not so near the Hoover Dam it would probably be a tourist spot all on its own. Due to be completed next year this amazing bridge is still very much under construction, as pictures in the link will show. Once the arch meets in the middle the biggest party since Prohibition will no doubt ensue.

The longer, more proper and formal name is the Mike O’Callaghan-Pat Tillman Memorial Bridge. Perhaps it is already known as The Mike and Pat locally. O’Callaghan was the Governor of Nevada in the nineteen seventies as well as a veteran of the Korean War. Tillman is by far the more controversial choice. He gave up a millionaire lifestyle and superstar footballer status to serve in the US Army in Afghanistan where he was killed in 2004. His death has been subject to military investigations and more than the occasional conspiracy theory.

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From the Upcoming ueue, submitted by taliesyn30.

There is finally an alternative. The British engineering firm, Novacem, has created a new cement that uses magnesium silicates, which emit no carbon dioxide when they are heated. As the cement hardens, it absorbs CO2. In all, it removes about .6 tons of carbon dioxide per ton of cement used.

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