ShadowsPapa
Well-Known Member
- First Name
- Bill
- Joined
- Oct 12, 2019
- Threads
- 180
- Messages
- 29,422
- Reaction score
- 34,997
- Location
- Runnells, Iowa
- Vehicle(s)
- '22 JTO, '23 JLU, '82 SX4, '73 P. Cardin Javelin
- Occupation
- Retired auto mechanic, frmr gov't ntwrk security admin
- Vehicle Showcase
- 3
That's due to the heat from the ground slowing the freezing of the roads while the bridges are suspended in the air, and exits or entrance ramps often sit elevated by man-made high spots, again, allowing those to freeze more often than the main roads that sit more "on the ground".Also - bridges freeze before roads. You can tell when the temperature is dropping when you see (usually) trucks spun around looking at you on the other side of bridge. It's real easy to get sideways in a hurry. I always back my foot off the accelerator when I hit a bridge in these conditions.
Pay attention the next day and you can usually see evidence of people going off the road right after a bridge.
Black ice is a very real thing here. I sideswiped a truck one time years ago. First wife and I were driving south on I35 heading home from her parents. As we approached Ames, I could see tail lights mixed with headlights and brake lights galore. By the time I realized what it meant - it was too late. Black ice, spun on the bridge, crossed the median on the other side of the bridge and the left fender of the car was nearly ripped off. Dozens of cars and trucks and 4x4s facing all directions on and off the interstate. We were lucky, that truck could have crushed that little Gremlin. I had my boss tow it to his shop where I ordered parts and fixed it up - we drove it for several more years.
Around here when there's frost warnings (common starting early October) they slime the bridges - that's when I stop driving my classic cars and put them away for winter. That slime is salt brine and they lay it on so heavy it splashes all over.
Sponsored