Northbound I-25 was closed Wednesday, at times all the way from Interquest in Colorado Springs to Larkspur.
Several accidents were reported between mile markers 169 and 174 near Larkspur.
The Colorado State Patrol received its first reports of crashes on I-25 in
and around the Monument Hill area at approximately 10:45 a.m. Wednesday.
By noon, the number of vehicles involved had increased to
approximately 40, with some injuries.
At approximately 1:00 p.m. a school bus was dispatched to the scene to transport the drivers and passengers with disabled vehicles to the Holiday Inn at I-25 and Wolfensberger in Castle Rock.
An estimated 14 people were taken to hospitals with minor to moderate injuries. 4 others had serious injuries.