Tower-Peña Ramp and Widening Project

Tower-Pena Ramp map Commerce City is working with the City & County of Denver, Denver International Airport and the E-470 Public Highway Authority on a project to build the much-anticipated on-ramp from Tower Road to westbound Peña Boulevard. 

The project also involves rebuilding the existing off-ramp from westbound Peña onto Tower and widening Tower Road to four lanes from the Commerce City-Denver border (E. 80th Avenue) to just south of the Tower-Peña interchange. The widening in this project picks up where Commerce City’s recently completed widening project left off, making Tower Road four lanes wide from E. 104th Avenue all the way to Interstate 70.

The project allows Commerce City residents, businesses and visitors direct access to westbound Peña Boulevard, adding convenience and shortening drive times for westbound commuters. The project improves regional connectivity to help support economic growth along Commerce City’s Tower Road corridor and fuels Aerotropolis activity in the area.

Fast Facts

Total Project Budget: $12.1 million (split between Denver, E-470 and Commerce City)
Construction Begins:
 January 2018
Expected Completion: 
Late 2018
Designers: Core Consultants/Felsburg Holt & Ullevig
 Castle Rock Construction Company, LLC

Traffic Impacts 

No full closures are expected during the project, but drivers on both Tower Road and westbound Peña Boulevard should expect to encounter periodic lane closures, traffic shifts and delays during construction.

In early January, a traffic shift was put in place moving one lane in each direction onto the western lanes of Tower at the Peña interchange. This allows widening work to take place on the eastern lanes (which typically carry northbound traffic). The current shift will be in place for about six months. 

Construction Phases

Phase 1

  • Widening Peña Boulevard bridge over Second Creek for new on-ramp
  • Rebuilding/realignment of westbound Peña off-ramp (plus demolition of existing ramp)
  • Widening northbound lanes of Tower Road

Phase 2

  • Construction of new on-ramp to westbound Peña Boulevard
  • Widening southbound lanes of Tower Road

Phase 3

  • Center medians, final striping and signage, topsoil/seeding, etc.


Tower Road Projects map
View a detailed PDF of the map

The project is able to move forward thanks to a series of intergovernmental agreements between Commerce City, E-470 and the City & County of Denver, along with approvals from Denver International Airport and the Federal Aviation Administration. These long-standing agreements allow Commerce City to oversee design and construction of the project, with E-470 contributing the cost of on-ramp construction and Denver paying for the Tower Road widening portion. Denver will also handle maintenance for the new infrastructure being built, since the entire project takes place inside Denver city limits.

Contact Us 

If you have questions or would like to know more about the project, please call 303-C3-WORKS (303-239-6757).