Traffic on northbound I-25 was a total mess this morning after a serious crash at Colfax shut down multiple lanes and sent one person to the hospital. The backup stretched all the way to Colorado Boulevard, and even side streets like Santa Fe and 6th Avenue were gridlocked. Commuters had to scramble for alternate routes, but even those were jammed. All lanes finally reopened just after 7:30 a.m., but the ripple effect on traffic is expected to last a while. Anyone else stuck in this? How do you handle these surprise gridlocks in Denver? #Transportation #DenverTraffic #I25