A portion of I-85 in Spartanburg County will be closed after a truck hit a bridge causing significant structural damage, according to SCDOT spokesman Robert Kudelka.An illegal, oversized load struck the bridge on SC 110 (Battleground Road) that crosses Interstate 85 near mile marker 83 Monday afternoon, Kudelka said.According to Kudelka, crews have installed a detour for both lanes of southbound Interstate 85 traffic.The existing