US 34 traffic shift Tuesday will move traffic onto new pavement west of the new bridge

August 3, 2015 - Northeastern Colorado/CDOT Region 4 - GREELEY – Traffic will shift onto new pavement placed as part of the US 34 permanent flood repair project between Greeley and Kersey on Aug. 4.

Traffic will be subject to single lane alternating traffic while crews finish lane striping and move traffic onto the new alignment during the day on Tuesday.

Both directions of US 34 will be realigned to use the eastbound bridge over the South Platte River. Motorists will drive on new concrete between the South Platte bridge and the US 34 Business intersection. At US 34 Business, travel lanes will shift north to tie into the temporary road around the “big hole” where the new bridge is under construction.

Moving traffic now will allow crews to continue construction of the box culvert and westbound travel lanes west of US 34 Business. Next month, the project team anticipates moving all traffic onto the new bridge. The entire project is scheduled for completion by the end of the year.


Damage Overview - US 34 east of Greeley sustained substantial damage between mileposts 114 and 116. Flood waters upstream of the highway exceeded the banks of the main channel of the South Platte River and were directed northeast toward the damaged section where they overtopped the highway. As a result of the water flooding over the roadway, an entire section of the roadway washed out east of the highway’s intersection with US 34 Business and portions of the westbound lanes were undermined east and west of the intersection. Additionally, sediment and debris were deposited throughout this area.  The highway was closed for a period of 17 days before emergency repairs could be made to re-establish transportation routes.

Project Overview - This $22 million project will construct a new bridge where US 34 washed out. The project also includes installing a box culvert under the roadway and upgrading design elements to current CDOT standards. The horizontal alignment (i.e., curvature) of US 34 will be flattened to meet the requirements of a higher design speed.

Stay Informed:

The best way to stay up to date on project progress and impacts is to sign up for email alerts. Go to CDOT’s website at and click on the green cell phone icon in the center of the page. Enter your information and choose “US 34 Flood Repairs” under the “Colorado Flooding” list.

Visit the project website at for more information.

If you have questions or concerns, call project information line or send an email to the project email address below.

Project Information Line: 970-815-0901

Email: [email protected]