Southwest Freeway northbound lanes reopen at Chimney Rock after truck loses load, TranStar showsWatch Eyewitness News and ABC13 originals around the clockWatch Eyewitness News and ABC13 originals around the clockWatch Eyewitness News and ABC13 originals around the clockWatch Eyewitness News and ABC13 originals around the clockHOUSTON, Texas (KTRK) -- All northbound lanes of the Southwest Freeway have reopened at Chimney Rock after a truck lost its load during a crash Thursday morning, sparking backups for hours. The Houston Police Department said it got a call at about 10:20 a.m. about a major crash on the Southwest Freeway. Police said the crash involved a black pickup truck and an unknown vehicle. According to HPD, the pickup truck was towing a trailer when it overturned in the crash, spilling debris across multiple lanes of traffic. By 2 p.m., authorities said all lanes had been cleared.