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Thursday, July 24, 2014

Heat causing some problems to streets

Wednesday, July 11, 2012

SIKESTON -- Concerned about what ridges and bumps in the pavement are doing to your wheel alignment and tires? Call it in.

Streets located within a municipality are probably a city street while those outside of cities and towns are maintained by the state or county.

If a problem is noticed on a state road, Missouri Department of Transportation officials appreciate it being brought to their attention.

"It is helpful: our crews may not know about it until they drive over it themselves," said Matt Seiler, assistant district engineer for MoDOT's Southeast District. "Just call 888-ASK-MODOT. Tell us the route and the general location and we'll send a crew out to address it."

With the area having just endured a heat wave, motorists may be finding problems all over the district caused by the heat that MoDOT crews haven't found yet.

"In general what happens is concrete and steel expand as they heat up," Seiler said. "Most roads are 8-14 inches thick, depending on the design."

Over a period of time, heat builds up in a concrete road, he explained, with more heat resulting in more expansion.

"Eventually when it runs out of room it has no other way to go but up," Seiler said. "The term we use is 'a pavement blowup.' It can occur at any joint at any time during real hot weather. We really can't predict when it is going to happen."

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