The Brief A semi-truck carrying corn crashed into a ditch off Southbound Interstate 5 near Joint Base Lewis-McChord. All JBLM traffic heading from I-5 must divert to Exits 122 and 120 while crews clean up the scene. A semi-truck carrying corn crashed into a ditch and spilled its load onto an Interstate 5 off-ramp in Lakewood on Thursday morning, forcing traffic detours. Crash investigation near JBLMWhat they're saying:Washington State Patrol Trooper Kameron Watts said drowsy driving caused the crash. Washingtom State Patrol Trooper Kameron Watts said a semi-truck carrying corn crashed on an I-5 exit ramp near JBLM on Thursday, July 23, 2026.