Engineering, 16.03.2022 20:10, chaaaa

From a structural and engineering standpoint, what was significant about the original Alaskan Way Viaduct? What were the innovative health and safety features of the original Battery Street Tunnel?
Who funded the original viaduct and tunnel, and how much did it cost?
What was the goal of the Permanent Highway Act of 1911?
Who objected to the Alaskan Way Viaduct and why?

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From a structural and engineering standpoint, what was significant about the original Alaskan Way Vi...