BOSSIER CITY- Officials in north Louisiana have evacuated 3,500 homes in Bossier City as a precaution as Red Chute Bayou approaches the top of its levee.
    
National Weather Service Meteorologist Jason Hansford says the bayou may top the levee or be breached.
    
Hansford say heavy rain continued across much of north Louisiana on Wednesday night and early Thursday morning with another 3 inches.
    
He says a weather spotter just north of Monroe reported 18.1 inches of rain since Tuesday night.
    
State police report several sections of Interstate 20 are closed from Bossier City to near Gibsland in northcentral Louisiana.
    
Three people drowned in flooding across Oklahoma, Texas and Louisiana.