Black Hawk South Dakota USA - A small railway bridge crossing Black Hawk Creek was sound when 13 or 14 rail cars left the tracks Thursday in Black Hawk, Canadian Pacific said Friday.
 
"As railroad investigators review the accident, at this time, there is no indication the derailment was caused by a bridge failure," Canadian Pacific said in a prepared statement.
 
The bridge and track were recently inspected, according to railway spokesman Andy Cummings.
 
"CP is committed to a thorough review of what caused this incident and will take the necessary time to determine what happened and what steps are required to prevent it from taking place in the future," Cummings said.
 
The bridge was inspected in November and met all standards with no defects detected, according to the statement.
 
No deficiencies were noticed during a track inspection at the bridge the day before the derailment.
 
The rail line runs parallel to Sturgis Road in the area and crosses Peaceful Pines Road west of Interstate 90.
 
The Peaceful Pines Exit 52 is a popular route used by Summerset residents.
 
The derailment closed Peaceful Pines west of Sturgis Road for nearly 10 hours Friday after the derailment at about 12:40 p.m.
 
Approximately 40 cars of the 60-car train were left stranded north of the derailment.
 
Three engines and five cars of the southbound train stopped south of the crumpled derailed cars.
 
No one was injured in the derailment.
 
Local and out-of-town Canadian Pacific crews were called in to clear the wreckage and rebuild the bridge and tracks, Cummings said.
 
Several of the crumpled cars spilled their loads of bentonite clay.
 
Peaceful Pines Road was reopened shortly before 10 p.m. after a dozer was used to move the rail cars stranded north of the intersection, according to Gary Engel, regional director of the South Dakota Department of Transportation in Rapid City.
 
"They hooked the dozer on and pulled the cars back a few at a time," Engel said.
 
"I thought it went pretty well."
 
Cummings expected repairs to the rail line and bridge to wrap up Friday night.
 
Trains will resume running after mandatory inspections are completed, he said.
 
Andrea J. Cook.