The truck rolled east past Claremore on a Tuesday afternoon, an oversized load strapped to a flatbed trailer.
It rode higher than the law allows.
The first overpass took the hit, and the truck kept going.
By the time crews caught up with it, six county bridges had been struck and four were closed to traffic.
How does one load hit six spans in a row?
How a single clearance gap turned into six consecutive strikes
Oklahoma law requires trucks taller than 14 feet to carry a permit and follow an approved route before moving on the state highway system. According to the turnpike authority’s damage assessment, the bridges struck ranged from 14 feet 11 inches to 15 feet 4 inches in vertical clearance, well above that legal limit. An authority spokesperson said the load was understood to be a little over 15 feet tall, roughly a foot over what state statute allows.
Because the load was never routed through the permitting office, nobody compared its height against the clearances waiting on that corridor. The lowest spans on the route sat under it, and the truck met them one after another.
The mechanism is unglamorous. A beam painted with a clearance number only helps if the driver knows the height of the load, and the permit is the step where those two numbers are forced to meet. Skip it, and the first bridge is not a warning, only the first impact.
What the load was carrying and where it hit
The state’s transportation director later told his commission that the truck was hauling a utility pole base. On a flatbed trailer, that is a squat, heavy cylinder, and it rode high enough above the deck to reach into the clearance zone of the older overpasses on this stretch.
In total, six county overpass bridges were damaged, between SH-266 near Verdigris and a point east of SH-28 near Vinita, in Rogers and Mayes counties. Those overpasses carry local county roads above the turnpike, so the closures hit farm and commuter traffic crossing the interstate as hard as anyone driving beneath it.
Repair crews used flame straightening, along with sectioning and diaphragm replacement, to bring bent beams back into line. A torch is walked along the deformed steel until the metal relaxes toward its original shape, work that has to proceed slowly and in a controlled sequence.
The numbers that came out of the inspection
The strike happened on the afternoon of Dec. 16. The authority’s executive director declared an emergency the following afternoon, crews were on the bridges by Thursday night, and the first estimate for the emergency work was about $415,000.
The governing board later approved spending $491,700 on the repairs, paid to Built-Right Construction under that emergency declaration, as Oklahoma Voice reported. Three of the closed county bridges were back open by Christmas, and the remaining span followed shortly afterward.
That figure covers the contract work and nothing else. It does not account for inspection hours, detour miles, or the disruption to local travel while four crossings sat closed, which the state’s transportation director described as significant.
What the repair crews actually did on site
Bridge beam repair of this kind is not quick, and a six bridge scope meant working alongside live turnpike traffic for days. For each overpass, engineers had to decide whether a damaged beam could be reshaped in place or whether a section had to be cut out and replaced. The turnpike stayed open in both directions throughout, though lane restrictions ran through a series of overnight windows, with eastbound I-44 narrowed to a single lane beneath the damaged spans.
That kept freight and passenger traffic moving while crews worked overhead, but it stretched the job across more than a week.
The authority’s published scope list shows how unevenly the damage landed. Some bridges needed sectioning, diaphragm replacement and flame straightening together; another needed only the damaged portion of a single beam flame straightened, a job planned for one night. Even so, six beams at once pushed the work firmly into emergency territory.
What this kind of strike costs beyond the repair bill
This was not a record breaking event for the state. The turnpike authority has said over height trucks hit nine bridges on Oklahoma turnpikes in 2023 alone, causing more than $1.6 million in damage, and that such costs are typically recovered through trucking company insurance.
Age is part of the exposure here. The overpasses struck were built in 1957 and 1958, and the long range ACCESS Oklahoma plan would rebuild the E. 530 Rd. bridge as part of a turnpike widening in 2028, with the program raising vertical clearance toward 18 feet. Building that headroom is the slower remedy, and the same clearance arithmetic shapes projects as different as new motorway tunnels and the jacked concrete structures pushed under live railways.
“The fact that they hit 6 of these bridges is on the inexcusable side,” the state’s transportation director told the transportation commission, saying the load had not been routed through the appropriate permitting system.
The six spans reopened within about a week of the strike. The next over height load, somewhere on the system, will not know they are there.
Read the whole thing?
Get the week's signal, not the noise
Our sharpest reporting on energy, climate and nature — free, once a week.
