GEISMAR — Crews in Ascension Parish worked to remove downed trees and storm debris from roadways following heavy rain that fell across southern Louisiana on Wednesday evening into Thursday morning.Several trees fell and blocked La. 74 near Bluff Road in Geismar early Thursday morning, with Louisiana Department of Transportation and Development crews responding to clear the roadway.The downed tree was first reported around 4:45 a.m., but it was c…