For Aging Bridges, UAB Engineer Wants to Send in the Drones
Many of Alabama’s bridges are in bad shape. According to the U.S. Department of Transportation, there are about 16,000 structurally deficient bridges in Alabama. It’s a problem here and across the country. Many of the bridges are just old, and many were built when traffic and cars were lighter. But inspecting bridges takes time, skill and money. Now, a University of Alabama at Birmingham engineering professor is using a $500,000 grant from the National Science Foundation to develop a solution using drones.
Practicalities
It takes a long time to inspect any good-sized bridge, and there aren’t enough specialists or budget dollars to do them all. UAB engineering professor Nassim Uddin says that’s dangerous.
“We see a number of collapse of bridges recently, in Minneapolis, in Washington and so forth.”
Uddin says inspections become trickier and are required more frequently as bridges age. But he thinks drones could help.
“That was the challenge,” he says. “How can we use cheaper, very light sensors [to] give you a similar level of precision?”
The Plan
The idea is to mount sensors on bridges, then send drones out to upload information about the bridges’ health from the sensors. The drones themselves could scan the structures where the sensors can’t reach, too.
“Having the drones now, we don’t have to put hundreds and thousands of sensors sitting on the bridge and using lots of electricity and collecting the data day in and day out,” says Uddin.
Drones could be used for regular bridge inspections, or after storms or earthquakes.
Uddin is collaborating with researchers in Ireland and England, where he says there are fewer restrictions on testing drones in high-traffic areas. He hopes to run field tests in England this year. He’s also recently applied for a separate grant to develop the same drones to inspect buildings, homes and other structures after storms or earthquakes. Those drones could also serve as hotspot communications networks in disaster zones.
Birmingham’s newest voters: how the latest generation is approaching politics
While Alabama is not a swing state, these students represent an up and coming generation whose voices have not yet been heard in the political world. And this demographic of voters has already proven that they can make an impact.
It’s the last day of the 2024 campaign. Here’s where Harris and Trump are going
Vice President Harris ends her day with a concert on the "Rocky Steps" in Philadelphia. Former President Trump will wrap up in Grand Rapids, Mich. — where he also closed out his 2016 and 2020 races.
Moldova’s pro-Western president wins vote overshadowed by Russian meddling claims
Moldova’s pro-Western President Maia Sandu has won a second term in a pivotal presidential runoff against a Russia-friendly opponent, in a race that was overshadowed by claims of Russian interference.
The race for the Senate: Here are the top races to watch
Republicans are favored to take control of the chamber thanks to a 2024 map of races that tilts disproportionately in the GOP’s favor. Here are the races to watch.
Meet the conservative women who are keeping their votes for Kamala Harris a secret
Polls show a historic gender gap in the 2024 election. Democrats are reminding conservative women: votes are a secret and they can vote for who they want, including Vice President Harris.
Trump and Harris are in Reading, Pa., today, thanks to a bad joke about Puerto Rico
The candidates are both spending time on the last day of the campaign in Reading — a majority-Latino city — where that bad joke about Puerto Rico has resonated.
