NORTH CHARLESTON, S.C. (WCBD) - An overturned tractor-trailer is blocking the westbound lanes of I-26 on Monday morning. Cpl. Nick Pye with the South Carolina Highway Patrol said the transfer truck overturned near mile marker 212, at the I-526 merge. Three westbound lanes are closed. North Charlesto n police warn about prolonged delays in the area. ...read more read less