05_16_04_ CO-GOLDEN, CO-National Transportation Safety Board officials (NTSB) <cq>, Colorado Department of Transportation <cq> CDOT <cq> and Jefferson County Sheriff's Office officals returned to the scene of the girder collapse at a bridge construction p

05_16_04_ CO-GOLDEN, CO-National Transportation Safety Board officials (NTSB) <cq>, Colorado Department of Transportation <cq> CDOT <cq> and Jefferson County Sheriff's Office officals returned to the scene of the girder collapse at a bridge construction project on C-470 over Interstate 70 <cq> to begin their investigation into what happened the day before. A 40 ton girder from the project collapsed onto I-70 Saturday morning around 10 am <cq> crushing a sport utility vehicle and killing all three occupants inside the car <cq>. The girder, measuring 100 feet long <cq>, was placed Tuesday night on C-470, dropped onto the eastbound lane. ABOVE: Jefferson County Deputy Sheriff Steven Parker <cq> puts up crime scene tape on the northside portion of the bridge. The entire accident scene was taped off by the Sheriff's department to preserve it until officials could begin their investigation early Monday morning <cq>. PHOTO BY HELEN H. RICHARDSON (Photo By Helen H. Richardson/The Denver Post via Getty Images)