Watch this video clip to learn more about icy bridges >

"Bridge Freezes before Road". Those signs you see space true! among the many dangerous species of roadway icing threats originates from bridges and also overpasses. A bridge is exposed to air on every one of its surface - top top top, underneath and on that sides. By contrast, a normal road surface is only exposed come air on one side, its optimal surface. When temperatures drop, this means bridges will certainly cool and accumulate snow and ice much faster than highways on heavy ground (watch the computer animation above). An icy bridge"s many dangerous risk is their aspect of suprise - they catch drivers turn off guard, who room traveling at complete speed due to the fact that the remainder of the roadways are either clean or simply a small wet. The consequences of control onto ice at highway speeds can be catastrophic, as the lose of control and impacts occur much much faster than in most other conditions. Slides are often unrecoverable and also chain-reaction type accidents space common, as additional vehicles will regularly lose control in the specific same location.Notice the bridges in the picture gallery - completely covered with a layer of very slick snow and also ice, even though the roads before the bridges are completely clear. The transition from clear road to icy takes place in mere inches!
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Black ice from freeze rain - one "Invisible Danger"

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The photo below is a standard illustration that "black ice" ~ above a bridge developed from freeze rain. Unequal ice associated with snowfall, ice cream from freezing rain looks exactly like the wet roads adjacent to it. Have the right to you view the ice cream on this bridge?
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Video: Icy Bridges




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