I-20 Westbound Is Closed at Monkhouse Drive in Shreveport. An 18-wheeler loaded with biodeisel overturned early this morning. The big rig was headed west when the driver lost control and the rig flipped and crossed into the median. The driver was not hurt. Crews have moved the 18-wheeler from the interstate, but haz-mat crews are now working to clean-up the biodeisel fuel that spilled onto the freeway.