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Bridges freeze faster than roadways on land. Bridges also have more "black ice"-- ice you cannot SEE but is there. A sign "Ice on Bridge" means they know there is potential for bridges to have ice and that this bridge is prone to icing. It means SLOW DOWN; be prepared. It means to be cautious on a 2-lane 1-direction highway if you try to pass on a bridge--stay in your lane until you are off the bridge unless your vehicle is an obstacle to traffic flow or it is too unsafe for you to pull to the right lane.

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10y ago

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