Three lanes of northbound Interstate 25 were closed Thursday afternoon after a semi struck the 23rd Avenue bridge. Traffic was reduced to one lane and backups stretched for miles.
A 17-year-old is in custody after an early morning collision at Federal Boulevard and West 23rd Avenue.
Two people were killed in a car crash in Aurora early Friday afternoon.
The effort really picked up speed 5 years ago and the city of Denver has just finished making its 100th mile of bike lanes.