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| Re: [VIDEO] New Tech Helps MTA Replace An Entire Bridge In One Weekend (1526545) | |||
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Re: [VIDEO] New Tech Helps MTA Replace An Entire Bridge In One Weekend |
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Posted by Bill West on Thu Oct 10 15:54:44 2019, in response to Re: [VIDEO] New Tech Helps MTA Replace An Entire Bridge In One Weekend, posted by ChicagoMotorman on Thu Oct 10 15:18:28 2019. Not knowing Chicago that well, I punched Torrence Ave. Chicago into Google Earth. Seconds of scrolling found which rail crossing we were looking at. A few clicks of the historical imagery bar found the 3/12/2012 image with the piers close to complete. In an empty field to the southwest were pads suitable for assembling a bridge. In the 4/2/2013 image the pads are covered with construction supplies and the bridge is in place. The current view shows that the avenue was subsequently depressed under the freight railway that is at ground level. The video shows the original grade level avenue being used as a path for moving the bridge. After it was placed we can see the crews putting the crossing lights and the freight railroad's signals back up. Researching this answer was even faster than writing this post.Bill |
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