I-85 Collapse: Major North-South Artery Closed as Spring Break Travel Kicks Off

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ATLANTA (CNN) — Drivers in one of the world’s most congested cities faced a jarring new reality Friday as they were forced to game out how to get around a collapsed portion of Atlanta’s Interstate 85 — one of the Southeast’s major north-south arteries.

A mysterious fire collapsed an I-85 northbound overpass Thursday evening — injuring no one — and also damaged the southbound portion, forcing the closure of all five lanes in each direction for the foreseeable future.

**Embargo: Atlanta, GA**
Fire still smolders a day after a massive fire took out part of Atlanta’s Interstate 85 — a major artery that supports an estimated 250,000 cars per day.

The shutdown likely sets the city up for traffic headaches for weeks to come after creating navigation hell on Thursday with jams that extended five miles or more and stranded motorists in the immediate area for hours.

The closure comes at a sensitive time for a city accustomed to gridlock — with hordes of spring break vacationers poised to drive though the regional hub and the Atlanta Braves set to play a preseason game Friday night in their new stadium in the city’s northwest corner.

“I think it’s as serious a transportation crisis as we could have,” Atlanta Mayor Kasim Reed said Thursday evening.

‘Fell with a big kaboom’

The fire started Thursday evening under an I-85 overpass in north-central Atlanta, north of the highway’s split with I-75.

The flames ignited in an area where the state stores construction materials and supplies near the overpass, state Department of Transportation chief Russell McMurry said. Officials say they still don’t know how the conflagration started.

At first, I-85 motorists drove through the smoke, and firefighters fought the flames below. It eventually grew into a massive fireball.

Flames and smoke engulf a section of Interstate 85 in Atlanta. The cause of the fire was not immediately known.

“There was a 40-feet or higher wall of fire. Power lines were falling and arcing heavily and falling in the streets,” Cortez Stafford, a spokesman for the Atlanta Fire Department, told CNN.

The elevated span of highway collapsed about 7 p.m. ET, as crews battling the fire got out of danger’s way.

As concrete began falling from under the bridge, firefighters were asked to step back, Stafford said. “Not even two minutes later, the highway fell with a big ‘kaboom.’ (It) knocked our guys back.”

While the highway is normally jammed with cars around that time, there were no fatalities, Reed said.

More than 220,000 cars per day are estimated to drive through that stretch of the interstate. Officials scrambled to come up with alternate routes and encouraged riders to use public transit.

“This is the time to start planning and looking for an alternate route on how you do your business,” McMurry said Thursday evening.

Surreal scenes

Social media users posted surreal images showing motorists — before the collapse — choosing to drive into the black smoke that billowed onto the highway as the fire burned beneath them.

CNN’s Eliott C. McLaughlin was driving north on I-85 during the evening rush hour when he saw smoke rising from underneath the elevated highway.

Many cars on the left side of the five-lane section barreled through the thick black smoke. They disappeared into the darkness as they drove, he said.

McLaughlin slowly followed the taillights of an SUV through the smoke.

Soon, interstate traffic was stopped and turned around, creating long jams.

What caused the fire?

McMurry, the state transportation boss, said it wasn’t immediately clear what started the fire at the state’s construction-equipment storage area near the bridge.

**Embargo: Atlanta, GA**
A section of US Interstate 85 in north Atlanta collapsed Thursday after a massive fire, local officials confirmed.

Gov. Nathan Deal said Thursday that he had heard speculation it was caused by some “PVC products that caught fire.”

PVC pipes are generally “stable,” McMurry said Friday. A trade group, the Plastic Pipe and Fittings Association, says PVC pipes are combustible, but the material generally doesn’t keep burning when a flame source is removed.

“We’re as eager to learn the cause of this fire as anyone,” McMurry said.

Two fire trucks from Hartsfield-Jackson Atlanta International Airport in south Atlanta rushed to the scene and sprayed foam on the fallen section of roadway and the flames.

Investigators have no evidence the fire is linked to terrorism, and an investigation is underway, Atlanta’s mayor said.

‘It’s going to take some time’

As crews worked Friday to clear the remains of the fallen pavement, officials announced the northbound bridge won’t be the only section needing replacement. The southbound span also was damaged and will need to be rebuilt, and adjacent sections in both directions will have to be checked, McMurry said.

Authorities worked through the night to access the bridge and ensure the risks from the collapse are contained. Smoke still rose from the site Friday morning.

“It’s going to take some time to get it repaired and to get it back in service,” Deal said, without offering a time frame for reopening.

Weeks of repair ahead

Most structural materials lose strength when subjected to high temperature, meaning the concrete could have been compromised by the heat, said Reginald DesRoches, a professor at Georgia Tech.

It is too early to say how long it will take to repair the highway, he said.

“It certainly can take anywhere from several weeks to several months,” he said. “The surrounding sections of the highway will be evaluated to determine if any damage was sustained from the heat. It is probably prudent to check both sides of the adjacent sections (northbound and south bound).”

Not business as usual

MARTA, Atlanta’s rail and bus system, will offer extended service through the weekend.

One school district, in nearby DeKalb County, canceled classes for Friday. Schools in Atlanta will be open, Reed said, and city and state offices won’t open until 10 a.m.

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