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re: Why Not Tunnels?
Posted on 7/24/18 at 12:29 pm to fr33manator
Posted on 7/24/18 at 12:29 pm to fr33manator
quote:
No way you could get a stable grade to that depth and back up in a short enough distance. It would be undrivable
Any idea what the channel depth is in Addis? There’s a turn there where the river is 4,500 feet across, so 1.5 the length of where the current bridge is now and the length of the the GWT. Even at 100 feet deep, would that give enough room for the proper grading?
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