Bascule implies “seesaw” in French, which happens to be how this bridge operates. With just two 108-horsepower motors, the bridge’s metal and roadway weigh the same as the concrete and metal counterweight. Museum people can obtain the bridge’s gear place to determine this engineering marvel. In the spring and slide, https://zerogravitythrillamusemen83714.bloggazzo.com/7692257/5-tips-about-mccormick-bridgehouse-chicago-river-museum-you-can-use-today