As the city of Aurora improves its infrastructure offerings to its current and future residents, demands for more infrastructure, improvements and repairs also grow. On any given work day, there can be as many as 100 active work zones within the city.

Traffic engineering staff make every effort to minimize the impact of these work zones to the traveling public. In addition to reviewing and approving the plans to ensure they are safe and compliant with all regulations, staff also work with contractors to seek alternatives to street closures and minimize the number of lane closures and their duration. Staff also try to keep conflicting work zones from overlapping in time or space. In most cases, these efforts are successful. However, on occasion, alternatives are not available and since we are dealing with the outdoor environment, even the best planned projects get delayed by weather, special events or unknown conditions, resulting in confusion and/or unplanned congestion.

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Interactive map available
The city has an online map that shows work happening throughout the city that may impact travel on roadways. The map captures annual street maintenance work, transportation projects, public and private utility work, and development projects impacting roadways. Visit this link to view the map.

Annual Street Maintenance Work

The 2024 road construction projects map shows the work that happened last year. A 2025 map will be posted in the coming weeks. See the Weekly Roadwork Construction Schedule

Visit this link for more information about city of Aurora roadwork.

Other Road Construction Work (weather delays may be expected for all work zones) 

Please note: Although the city informs online mapping services about our road closures and designated detours/alternate routes, the routes they provide to the general traveling public are generally the shortest or quickest routes between two points. That results in drivers sometimes not following the city's designated detour/alternate routes.

In-progress and Due-to-start Projects

11th Avenue full closure
All directions of 11th Avenue between Havana Street and Del Mar Parkway will be fully closed around the clock from March 31 until further notice due to city engineering installing new infrastructure. Follow the signed detour route.
32nd Avenue lane closure
Westbound 32nd Avenue west of Helena Place will have one of two through lanes closed around the clock through May 29 due to a city water project to maintain infrastructure.
56th Avenue between E-470 and Jackson Gap lane closure
Both directions of 56th Avenue between northbound E-470 ramp and Jackson Gap Street will have all lanes shifted around the clock through the fall of 2025 due to a private developer working to construct enhanced traffic flow. An alternate route is in place; use caution.
Dayton full closure
Northbound Dayton Street between Sixth and First avenues will be fully closed around the clock from April 28 to May 10 due to a private utility maintaining infrastructure.
Del Mar Parkway full closure
All directions of Del Mar Parkway between 10th Avenue and Havana Street will be closed from March 31 until further notice due to a city engineering project to install new infrastructure.
Hampden lane closures
Westbound Hampden Avenue west of Conservatory Parkway will have two of three lanes closed around the clock on weekdays only through May 5 due to a city water project to maintain infrastructure.
Jewell full closure
Both directions of Jewell Avenue between Powhaton and Harvest roads will have through lanes closed from 8:30 a.m. to 3:30 p.m. through Sept. 11, due to a private utility working to maintain utilities. Use alternate routes; plan for delays.
Mississippi full closure
Westbound Mississippi Avenue west of Peoria Street will be fully closed around the clock through May 30 due to a city water project to maintain utilities. A detour will be in place; plan for delays.
Montview lane closures
Both directions of Montview Boulevard between Havana and Peoria streets will have multiple alternating lanes closed around the clock through May 31 due to a city water project to maintain utilities. Please use caution.
Peoria lane closure at Montview
Northbound Peoria Street on both sides of Montview Boulevard will have one of three lanes narrowed and shifted around the clock through April 30 due to a city water project to maintain infrastructure. Plan for delays.
Peoria full closure
Southbound Peoria Street approaching Mississippi Avenue will be fully closed around the clock from April 17 to May 30 due to a city water project to maintain infrastructure. A detour will be in place; plan for delays.
Peterson full closure
Both directions of Peterson Road between 48th Avenue and Highway 35/Colfax Avenue will be fully closed from May 1 to Oct. 1 due to a private developer working to maintain infrastructure. Follow the signed detour.
Powhaton lanes shifted
Both directions of Powhaton Road between Third and First avenues will have lanes shifted around the clock through May 12 due to a city water project to install new infrastructure. Use the alternate route in place.
Powhaton lane closures
Both directions of Powhaton Road between Jewell and Alameda avenues will have intermittent through lanes closed from 8:30 a.m. to 3:30 p.m. daily through Sept. 11 due to a private utility installing new infrastructure. Use alternate routes; plan for delays.
Quincy lane closures
Eastbound Quincy Avenue between Picadilly Road and South Plains Parkway/Copperleaf Boulevard will have two of three lanes closed from 8:30 a.m. to 3:30 p.m. April 28 to May 2 due to a private developer working on potholing.
Sable full closure
Both directions of Sable Boulevard between Smith Road and Colfax Avenue will be fully closed from 8:30 a.m. to 3:30 p.m. weekdays only through mid-May due to a city water project to maintain infrastructure. A detour is in place; expect slow traffic.
Sable lane shift
Northbound Sable Boulevard at 28th Avenue will have a lane shifted left around the clock from May 1 to June 13 due to a city water project to maintain infrastructure.

Northeast Aurora road closures and improvements

(view map for aerial view of closure impacts and alternate routes)

-56th Avenue between Monaghan and Hudson
Both directions of 56th Avenue between Monaghan and Hudson roads is fully closed around the clock through spring 2026 due to extensive road damage. The replacement road is currently being designed, and construction is estimated to start in summer 2025. Follow the signed detour; use alternate routes. The detour route uses Monaghan Road or Imboden Road between 26th Avenue and 56th Avenue.
-Hudson Road between 56th Avenue and 26th Avenue
Both directions of Hudson Road between 56th and 26th avenues is fully closed around the clock through spring 2026 due to extensive road damage. The replacement road is currently being designed, and construction is estimated to start in summer 2025. Follow the signed detour; use alternate routes. The detour route will use Monaghan Road or Imboden Road between 26th and 56th avenues.

All impacts below will occur between the Union Pacific railroad bridge and Colfax Avenue to support construction work in the median and erecting bridge girders for the diverging diamond interchange

Eastbound I-70 
-From 7 a.m. to 3 p.m. Monday, April 28, through Friday, May 2, there will be alternating right- and left-lane closures.  
-From 7 a.m. to 3 p.m. Saturday, May 3, there will be a left-lane closure. 
-Be aware that trucks may be entering eastbound I-70 from the shoulders; please drive through the construction zone with caution.  

Westbound I-70 
-From 8:30 a.m. to 5 p.m. Monday, April 28, through Friday, May 2, there will be alternating right- and left-lane closures. 
-From 8:30 a.m. to 5 p.m. Saturday, May 3, there will be a left-lane closure. 

I-70 travel lanes near Colfax Avenue will be reduced and shifted to one side of the highway Sunday, May 4, and Monday, May 5. These lane closures and travel changes are required while crews continue bridge work operations and build the future diverging diamond interchange. 
• Sunday, May 4, overnight from 6 p.m. to 5:30 a.m.: Eastbound I-70 will be reduced to one lane and shifted to the westbound side of I-70. Two lanes will remain open on westbound I-70.  
• Monday, May 5, overnight from 6 p.m. to 5:30 a.m.: Westbound I-70 will be reduced to one lane and shifted to the eastbound side of I-70. Two lanes will remain open on eastbound I-70.   

Construction activities are site- and weather-dependent and subject to change.

For more information on this project, visit the project webpage or sign up for weekly updates. All construction schedules and traffic impacts are subject to site- and weather-specific conditions.

CDOT Road Construction Updates

View weekly construction updates from the Colorado Department of Transportation.

E-470 Road Widening Updates

View more on this project from the E-470 Tollway Authority.

East Colfax Bus Rapid Transit

Aurora, in partnership with the city and county of Denver, RTD, CDOT and DRCOG, is preparing for the rollout of the East Colfax Bus Rapid Transit (BRT). The city of Aurora negotiated an intergovernmental agreement with Denver to fund the design and construction of BRT elements along the Aurora portion of Colfax.

Construction on the BRT has begun in Denver and will move east, likely reaching Aurora in late 2025. City officials joined federal, state and other local officials Oct. 4 for a groundbreaking ceremony for this project.

Watch the Colfax BRT series, Col-FAQS: On the Street.

BRT systems are designed to move more people with more safety, efficiency and reliability. Buses will run down dedicated center transit lanes in Denver and in mixed flow through Aurora, significantly reducing travel times within the project’s boundaries—from Union Station in Denver to RTD’s R-Line Station at I-225 in Aurora. 

More information—including a small business toolkit with resources for how to thrive during construction—is available at DenverGov.org/ColfaxBRT. Business owners also may take a self-assessment to consider how your business might be impacted by construction and what you may need to do to prepare. Additional resources are available from the Aurora South Metro Small Business Development Center (SBDC) at AuroraGov.org/SBDC.