Expressway was jammed from downtown to I-280.
Scientists forecast bloom about 5.5 on scale of 1 to 10 this summer.
Trapped in wreckage, she was pronounced dead at scene.
Incident occurred on at South Yondota road about 8:05 a.m.
Incident on U.S. 6 in Castalia occurred after car drove left of center.
Incumbent seeks re-election against challenger former Ohio Gov. Strickland.
He speaks to packed crowd near Cincinnati.
Delivers message of addiction treatment to leader of federal program.
Crash has caused a gasoline spill, forcing clean-up.
Access to outbound Anthony Wayne Trail also temporarily blocked.