Westbound I-94 is back open after a tanker fire this morning shut down both sides of the expressway near the Dearborn/Detroit border.

Eastbound lanes will remain closed from the Southfield Freeway to I-96 through the weekend, according to a Diane Cross, a spokeswoman for the Michigan Department of Transportation.

The tanker fire that ignited late this morning and involved two passenger vehicles and a semi left noticeable damage on the roadway, but no one was killed and officials said there were only minor injuries.

But Cross said tonight that the damage was much worse than anticipated. Earlier in the day, she said at least 150 feet of roadway would have to be removed, but that other damage, including smoke and soot on bridge support beams, are likely superficial.

Fire officials from Dearborn also had to inspect the sewer system, which caught fire after fuel from the tanker leaked into it, according to Michigan State Police spokesman First Lt. Michael Shaw.

Cross, who watched as a firefighter or emergency worker who had been standing next to the tanker was given oxygen and placed on a gurney this afternoon, said more than 13,000 gallons of diesel fuel and gasoline were in the tanker. She said that an unknown amount of that fuel leaked out, but it was stopped before it reached the Rouge River.

With the eastbound closure in effect, drivers will need to detour by taking the exit at the Southfield Freeway and heading north to either I-96 to go downtown or I-696 to reach Macomb County.

Michigan Avenue was also closed where it crosses over I-94.

Shaw said his agency is done with its on-scene investigation. He said the state police hasn’t yet determined which driver is at fault. Shaw said evidence on the scene conflicts with witness reports about how the accident occurred.