The science behind icy bridges - KULR8.com | News, Weather & Sports in Billings, Montana

The science behind icy bridges

Posted: Updated:
BILLINGS, Mont. -

Much of Montana was covered by snow and ice yesterday causing an unknown number of accidents.

Many of them occurred on overpasses and bridges which are even more dangerous in icy conditions.

We're in the thick of the winter season so many of us are used to driving in the snow by now but what about ice?

A rare freezing rain event led to several accidents across Montana, especially on bridges and overpasses.

There are always signs before bridges and overpasses telling you the bridge ices before the road.

Well, this is why the surface of the earth is able to hold on to heat longer than the air around you. 
Because of that the roads are able to remain warmer and accumulate less ice but for a bridge that's not the case.

Bridges and overpasses are surrounded by the cold air on the top and bottom cooling the temperature of the bridge more rapidly.

Once the bridge or overpass hits the freezing point it will ice over with whatever moisture is around it.

The Montana Department of Transportation said the best things to do when approaching a bridge or overpass is to turn off cruise control, slow down, and leave more space between your car and the car in front of you.

MDT tried to keep up with the overpasses and bridges but when there's freezing rain expect them to be worse.

They said, "we're more reactive than proactive with that. We're out but everything is freezing up at the same time. Generally, if we're out in a storm we'll be out pre-applying."

MDT also said if you want to keep up to date with the road conditions you can dial 511 or download their mobile app.

It is available for Apple and Android devices.

If you choose to use your cell phone to keep up to date while traveling MDT wanted to urge you to double check the road conditions before traveling and make sure you slow down.
           


?

  • LocalMore>>

  • Statewide teacher conference held at Skyview High School

    Statewide teacher conference held at Skyview High School

    Thursday, October 18 2018 11:49 PM EDT2018-10-19 03:49:28 GMT

    Montana Federation Public Employees host a statewide teacher conference at Skyview High School all day on Thursday. 

    The conference provides young teachers with the professional development credit they need after they receive their certification. 

    Montana Federation Public Employees host a statewide teacher conference at Skyview High School all day on Thursday. 

    The conference provides young teachers with the professional development credit they need after they receive their certification. 

  • Naturalization ceremony held at district court house

    Naturalization ceremony held at district court house

    Thursday, October 18 2018 11:42 PM EDT2018-10-19 03:42:20 GMT

     39 very excited people from eighteen countries were approved to become United States Citizens today at James F. Battin Courthouse.  The newest citizens of the United States pledged their oath of allegiance, and received their certificates of citizenship in court today.  

     39 very excited people from eighteen countries were approved to become United States Citizens today at James F. Battin Courthouse.  The newest citizens of the United States pledged their oath of allegiance, and received their certificates of citizenship in court today.  

  • Letters sent to resolve ballot issue

    Letters sent to resolve ballot issue

    Thursday, October 18 2018 11:30 PM EDT2018-10-19 03:30:20 GMT

    A small district in the heights received the wrong house district and senate district ballots last week.  If you live in district 44.3, you may have received a ballot for 43.3. Yellowstone County Administration Bret Rutherford says the error effects less than two percent of people in the district. T

    A small district in the heights received the wrong house district and senate district ballots last week.  If you live in district 44.3, you may have received a ballot for 43.3. Yellowstone County Administration Bret Rutherford says the error effects less than two percent of people in the district. T

  • MontanaMore>>

  • Angela Marshall interviews President Trump one-on-one after Missoula rally

    Angela Marshall interviews President Trump one-on-one after Missoula rally

    Friday, October 19 2018 12:31 AM EDT2018-10-19 04:31:36 GMT

    During Thursday's campaign rally in Missoula, ABC FOX Montana's Angela Marshall got the only opportunity to interview President Donald Trump.

    During Thursday's campaign rally in Missoula, ABC FOX Montana's Angela Marshall got the only opportunity to interview President Donald Trump.

  • President Trump jokes about Gianforte body slam incident

    President Trump jokes about Gianforte body slam incident

    Thursday, October 18 2018 10:59 PM EDT2018-10-19 02:59:51 GMT

    For the second time in his visits to Montana, President Donald Trump made light of an incident in which Republican congressman Greg Gianforte body slammed a British reporter.

    For the second time in his visits to Montana, President Donald Trump made light of an incident in which Republican congressman Greg Gianforte body slammed a British reporter.

  • WATCH LIVE: President Trump in Missoula

    WATCH LIVE: President Trump in Missoula

    Thursday, October 18 2018 8:09 PM EDT2018-10-19 00:09:43 GMT

    MISSOULA - ABC FOX Montana and Angela Marshall are on the scene as President Donald Trump arrives in Missoula. Watch our live stream of the event here.

    MISSOULA - ABC FOX Montana and Angela Marshall are on the scene as President Donald Trump arrives in Missoula. Watch our live stream of the event here.

  • Most Popular