Pavement blow-ups are the summer’s version of potholes, created by a combination of hot temperatures, moisture, and weakening pavement.
“Pavement blow-ups are nearly impossible to predict,” said Missouri Department of Transportation Central District Maintenance Engineer Jason Shafer. “That’s why we ask motorists who come across a blow-up to not only use extra caution and slow down, but call MoDOT to report the issue. It’s also important to note that while blow ups can do serious damage to the roadway, they don’t actually explode.”
The “blow-ups” become common across mid-Missouri over the summer months and occur when the roadway surface expands at a crack or joint where moisture has seeped in. The crack weakens the pavement and the heat causes the pavement to buckle and warp. Most blowups occur in the late afternoon or early evening.
Missouri Department of Transportation crews will monitor state routes during the summer months for possible problem areas and will make repairs as soon as possible.
Motorists can call MoDOT’s toll-free customer service center at 1-888-ASK-MODOT (275-6636) to report pavement blow-ups.
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