Sig Alert, 91 Freeway, Corona 11:53 a.m.

All lanes of the eastbound 91 Freeway were blocked this afternoon when a tractor trailer overturned and spilled about 50 metal pipes.
The crash occurred on the transition road to the northbound 15 Freeway at 11:53 a.m., prompting a Sig Alert. The California Highway Patrol said 50 to 60 metal pipes about 40 feet long were blocking all lanes and transmission fluid had leaked onto the road.
The duration of the closure was not known.