"US 34 has undergone major reconstruction since July 2016 to make the highway more resilient to future floods. On Thursday, May 24, at 4 p.m. when US 34 through the Big Thompson Canyon between Loveland and Estes Park reopens to all traffic, it will mark the end of all long-term closures.
Although the heavy lifting is complete, the final touches still need to be completed throughout the corridor.
Construction activities will continue in the canyon this summer and throughout the fall. Drivers could encounter up to 20-minute delays this summer for paving operations. During the summer, there will be limited, nighttime closures of the road to allow bridge girders to be set for four new access bridges."