Arch Bridges

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This post is about arch bridges. This picture is of the Fremont bridge. The Fremont is in the city of Portland. This how the weight travels. So first there comes the weight (which is a car, train, and lots more). The weight of the car goes through the arch and then to the ground. I think the arch bridge is the strongest bridge of all. If you build an arch bridge out of Legos and stand on it, the bridge will not break.