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CDOT begins paving work on the I-70 Eisenhower-Johnson Memorial Tunnel


Overnight closures of the Interstate 70 Eisenhower Johnson-Memorial Tunnel are scheduled to begin Monday, August 31 and last through early October.  Crews have been working through the summer on road repairs in the tunnel and are now ready to mill and pave the surface which is critically needed to improve safety.  The tunnel will be open, but all traffic will travel through one tunnel bore while the other bore is closed for paving operations.  Ten to fifteen minute travel delays are expected from 10 p.m. to midnight with minor delays for the rest of the nighttime hours. 



  • The eastbound tunnel will close overnight Monday – Thursday, 10 p.m. – 6 a.m. from August 31 to September 3 and from September 8 to 18.  Traffic will be detoured through the westbound tunnel.  No planned closures over the Labor Day weekend, September 4 to 7. 

  • Once the eastbound side is paved, the westbound tunnel will close overnight for paving September 21 to October 8. Traffic will be detoured through the eastbound tunnel. 

  • Arrangements have been made to ensure emergency vehicles will be able to get through quickly during the closures. 

  • The schedules above could change depending on the weather and other factors. It’s best that overnight travelers check cotrip.org for the latest information on road work, closures and other conditions. 

Other information sources:

Scheduled lane closures





The following tips are to help you stay safe while traveling through maintenance and construction work zones.

  • Do not speed in work zones. Obey the posted speed limits.

  • Stay Alert! Expect the unexpected.

  • Watch for workers. Drive with caution.

  • Don’t change lanes unnecessarily.

  • Avoid using mobile devices such as phones while driving in work zones.

  • Turn on headlights so that workers and other drivers can see you.

  • Be especially alert at night while driving in work zones.

  • Expect delays, especially during peak travel times.

  • Allow ample space between you and the car in front of you.

  • Anticipate lane shifts and merge when directed to do so.

  • Be patient!



Safe transportation infrastructure is essential for all of us, particularly for emergency first responders and freight drivers as Colorado navigates the COVID-19 pandemic. With that in mind, CDOT maintenance and construction crews follow social distancing and other health safety measures to reduce COVID-19 exposure on the worksite. The Colorado Department of Public Health and Environment announced guidelines for construction activities. The public is urged to join the campaign for #DoingMyPartCO by practicing social distancing and wearing face masks.  As traffic returns to normal levels, motorists must drive cautiously and heed the speed limit so all of us can return home safely. 



CDOT has approximately 3,000 employees located throughout Colorado, and manages more than 23,000 lane miles of highway and 3,429 bridges. CDOT also manages grant partnerships with a range of other agencies, including metropolitan planning organizations, local governments and airports. It also administers Bustang, the state-owned and operated interregional express service. Governor Polis has charged CDOT to further build on the state’s intermodal mobility options.