Louisville, Ky. (WHAS) – EMA officials lifted a code red emergency of Monday evening after a morning train derailment in southwest Jefferson County.
Eleven of 57 cars came off the tracks; one leaked the highly flammable chemical butadiene.
Click here to see images of the chemical spill.
The spill was contained in the afternoon and hazmat crews handed operations over to private cleanup crews that evening. EMA officials could not trace an active leak by nighttime.
"We're getting zeros at all the air monitors deployed," Doug Hamilton, Jefferson County EMA said.
Dozens of homes were evacuated and residents within a two mile radius were told to stay indoors.
Air and river restrictions were also lifted Monday evening. Dixie Highway will be closed indefinitely and drivers should expect to detour Tuesday morning.
Private contractors will begin work to remove to toppled cars during daylight hours. Federal Railroad Administration investigators will try to determine a cause.