Two car crashes 10 minutes apart caused westbound Interstate 70 and both directions of Highway 6 & 24 east of Silt to be closed Saturday.The I-70 wreck resulted as traffic was being slowed for an emergency crew for the accident on Highway 6 & 24.No serious injuries resulted from the accidents, according to the Colorado State Patrol.The first occurred at about 11:45 a.m. Saturday on eastbound Highway 6 & 24 about three miles east of Silt. Raymond G. Ludtke, 89, was attempting to pass eastbound traffic in his 1997 Chevy Blazer when John Craigmile, 44, of Silt was making a left turn from the eastbound lane in his Ford F250 pickup truck.Ludtke’s vehicle struck the rear of Craigmile’s vehicle, then ran off the south side of the road, rolling one and a quarter times, the CSP reported.Ludtke was transported to Valley View Hospital in Glenwood Springs and treated for moderate injuries. Craigmile was taken to Clagett Memorial Hospital in Rifle and treated for minor injuries.Both had been wearing seatbelts.The highway was closed for one and a half hours due to the accident.As I-70 traffic was slowed for an emergency crew on the right shoulder of the interstate, a 1998 Honda Civic driven by Marcelino Juarez Bustillos, 29, of Glenwood Springs was struck from behind by a 1990 Dodge Caravan driven by Robin Scott-Orso, 46, of Silt, the State Patrol said.The Honda ran off the right side of the road, then back across both lanes, rolling once before coming to rest on its wheels in the median. The van rotated 180 degrees and came to rest in the middle of westbound I-70, causing both westbound lanes to be shut down.Both of the drivers and a passenger were treated for their injuries at Clagett. All had been wearing seatbelts.The State Patrol did not say whether any citations were issued in conjunction with the accidents.