7 people dead after more than 160 vehicles crashed along Louisiana’s I-55 amid dense fog, officials say

Oct 28, 2023, 2:34 PM

At least seven people were killed in a slew of crashes along Interstate 55 in Louisiana that involv...

At least seven people were killed in a slew of crashes along Interstate 55 in Louisiana that involved at least 158 vehicles, state police said. (CNN)


(CNN) — The death toll following a slew of crashes Monday along Interstate 55 in Louisiana’s St. John the Baptist Parish that involved at least 160 vehicles this week has been reduced to seven people after officials initially reported eight deaths, state police said, citing forensic evidence.

At least 63 people were injured in the crashes, the Louisiana State Police said in a news release Tuesday. More than 25 of those were taken to hospitals with injuries ranging from minor to critical, the agency said previously. And many victims sought medical help on their own.

“As the investigation into the multi-vehicle crash on I-55 progresses, Troopers and forensic examiners have made significant advancements. It has been determined that the incident tragically claimed the lives of seven victims rather than the initially reported eight victims,” Louisiana State Police said in a Facebook post Friday.

The intense fire and extensive wreckage led troopers to believe there were a total of eight victims, but the ongoing investigation determined “there are no additional or unknown victims of this tragic incident other than seven identified victims,” state police said.

Meteorologists earlier said “super fog” had heavily impacted the area, just west of New Orleans, around the time of the pileups. Super fog is a thick fog that develops in damp, smoky conditions and can send visibilities plummeting to less than 10 feet, according to the National Weather Service.

The National Weather Service warned dense fog could return to the area this weekend.

All vehicles have been cleared along I-55 and crews are beginning to clean debris, diesel, and other chemicals from the roadway’s surface, state police said.

After the cleanup is complete, the northbound and southbound lanes of I-55 will remain closed until the Louisiana Department of Transportation and Development conducts a damage assessment on a bridge at the crash site, state police said.

Some of the vehicles caught on fire after the initial crash, authorities said. One of the vehicles involved in the wrecks was a tanker truck carrying “hazardous liquid,” police said without elaborating on the substance.

Police were working Monday evening to move the truck due to a “compromised tank/trailer.”

“Once the tanker is removed, first responders will be able to better assess the vehicles in that immediate area. It is possible that additional fatalities could be located,” state police added.

Authorities have asked the public to reach out if they have a missing family member who was traveling through the area Monday morning.

Louisiana Gov. John Bel Edwards said he was praying for those killed and wounded in the crashes.

“The combination of wildfire smoke and dense fog is dangerous, and I want to encourage all Louisianans in affected areas to take extreme caution while traveling,” Edwards said on X, formerly known as Twitter.

“I also want to thank the first responders and medical personnel who have worked so diligently to save lives and render aid,” the governor added. “The best way you can help them, besides exercising caution on the road, is to donate blood at your local blood donation center. It will help replenish supplies that are being drained today to care for the wounded.”

Earlier, St. John the Baptist Parish Sheriff Mike Tregre told CNN affiliate WVUE about three 18-wheel trucks collided in the northbound lanes and were fully engulfed in flames. In the southbound lanes, there were two reported multicar pileups, one of which was also producing flames.

According to Tregre, all first responders had to be on foot because the crashes left the area “completely gridlocked.”

“The situation is pretty bad,” he added.

Visibility levels were below a quarter mile at a nearby weather station from just after 4 a.m. CT until just before 10 a.m. CT. Visibility likely neared zero at times throughout the morning when the fog was at its densest.

The incredibly dense fog, known as “super fog,” was caused by fog combining with smoke from nearby fires.

Louisiana has battled unprecedented wildfiresextreme heat and relentless drought since the summer. Exceptional drought, the highest category tracked by the US Drought Monitor, is in place across 62% of the state.

In a statement Monday, the city of New Orleans said it is monitoring an active fire burning underground in forested wetlands between Bayou Sauvage National Urban Wildlife Refuge and the Michoud Canal.

The lack of rain combined with the summer’s extreme heat dried out wetlands and reduced the water table’s depth, the city said. The blaze being monitored has been burning at and below surface level, it added.

A repeat of Monday’s super fog is unlikely for Tuesday morning as “winds should be much stronger,” the National Weather Service in New Orleans said Monday on X, previously known as Twitter. Winds need to be calm or very light in order for dense fog to form.

Patchy areas of dense fog may be possible but will not be as widespread as Monday, the city said, citing the weather service.

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7 people dead after more than 160 vehicles crashed along Louisiana’s I-55 amid dense fog, officials say