A harsher-than-usual and prolonged winter is increasing the pothole repair workload for many state departments of transportation.
The Missouri Department of Transportation (MoDOT) reported March 18 that its crews patched 400,000 potholes through the first two months of 2019, compared to the approximately 619,000 potholes they patched for all of 2018.
The agency plans to keep 300 pothole patching crews busy statewide with roadway repairs through April.
“We are working as hard as we can to fill the potholes,” said Becky Allmeroth, MoDOT’s state maintenance engineer and chief safety and operations officer. “Some potholes have to be repaired multiple times because of additional rain. The temporary repairs are not holding. We ask motorists to please be patient with us as the repairs are being done.”
She noted that her agency’s repair crews address the deepest potholes first and that until roadway temperatures rise and remain above freezing, repairs are made using a cold asphalt mix. She added that MoDOT spends approximately $15 million a year on pothole patching operations for the 34,000 miles of road it maintains.
“However, this is a short-term repair,” she stressed. “The long-term fix, a hot asphalt mix, isn’t effective until temperatures are warm for a prolonged period of time.”
The Ohio Department of Transportation noted in February that it had already used 2,574 tons of asphalt to repair potholes; up from 1,892 tons at the same point in 2018.
“Our crews have spent more than 39,000 hours patching potholes this winter,” said ODOT Director Jack Marchbanks in February 1 statement.
He added that potholes are a “common nuisance,” particularly when the freeze/thaw cycle weakens the pavement. This happens when water seeps into cracks in the pavement, then expands as it freezes. When temperatures warm up, and the ice melts, the pavement contracts, allowing even more moisture in to freeze and thaw.
“Add traffic on top and the pavement will eventually fail, creating a pothole,” Marchbanks said. “Roadways with a high volume of traffic are particularly prone to pothole formation.”
The Maryland Department of Transportation’s State Highway Administration has also stepped up its pothole repair work, noting in a March 7 statement that with “saturated grounds” from record-setting precipitation from 2018 into 2019, and the freeze/thaw cycle that is occurring during this transitional time of the year, “potholes are popping up everywhere.”
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