A technology called "bridge slide" is set to be used for the first time by the Michigan Department of Transportation for two projects in the state. MDOT spokesman John Richard explains the process: "You basically build that new bridge next to the existing one and then you demolish the old one. The new bridge is built on skids. Sometimes they just use Dawn dish soap to lubricate them, and then they slide the bridge into place." Richard says the technique causes less traffic disruption, and he sees it "changing the industry."

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