18-wheeler overturns on I-220, blocking traffic 18-wheeler flips on I-220 W, causes interstate to be closed for hours; no injuries reported By Rachael Thomas | January 13, 2021 at 8:26 AM CST - Updated January 13 at 12:32 PM SHREVEPORT, La. (KSLA) - Emergency crews responded to a wreck involving an 18-wheeler Wednesday morning. The crash happened around 8 a.m. Wednesday, Jan. 13 on I-220 W at I-20 in Shreveport. The Shreveport Police Department and Fire Department responded. The 18-wheeler appears to have flipped onto its side, blocking I-220 W where the loop becomes LA 3132 at I-20. Traffic is being diverted onto I-20 W. The 18-wheeler has spilled some of its sand mixture related to oil and natural gas drilling.