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Results 1 - 2 of 2 found in Bridges and Tunnels:

Bridge of the Month Quiz
An image is posted inviting entrants to identify the feature. A free copy of a book on the subject is awarded to one correct entrant per month.
http://www.bridgeink.com/

MrTunnel.com
Home of Mr. Tunnel engineering highway road construction structures transportation design planning. Discusses many projects.
http://www.mrtunnel.com/

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