Tuesday, December 15, 2009

Beware! Black Ice

Northern Nevada is experiencing dangerous road hazards to include black ice this fall. Black ice is ice frozen without many air bubbles trapped inside, making it highly transparent. Black ice appears in the color of the material beneath it, often asphalt or a darkened pond. Due to the transparency, it may be difficult to detect ice which presents hazards to automobile traffic. Due to the transparency of this ice, automobile accidents can occur due to the slippery nature when trying to stop. Often, roads appear to be wet when instead the road is frozen over with a layer ice. Road warning signs with the advisory "Bridge May Be Icy" often indicate potential dangerous roadways. Salt is ineffective at melting ice at low temperatures which further increase the hazardous condition. For our own protection, we need to decrease our speed when the tempetures are low as well as leave ample space for a vehicle to stop if black ice is encountered.

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