Central 70

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Colorado Department of Transportation

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In Progress

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Denver, CO

Reconstructing Colorado's most congested corridor

Interstate I-70 is known as one of Colorado’s most congested corridors. To reduce traffic congestion, the City and County of Denver (CCD) along with the Colorado Department of Transportation (CDOT) is reconstructing 10-miles of the interstate between Brighton Boulevard and Chambers Road.

Clanton & Associates was selected to provide the lighting and electrical design along I-70 and the cover top above the I-70 tunnel. The team worked closely with the local utility, CCD staff, and CDOT to select the pedestrian lights, wall lights, and streetlights that met both the City and utility requirements.


When the interstate was built...

• in 1964—2 million lived in Colorado

in 2018—5 million lived in Colorado

• population projections for 2040 show 8 million will live in Colorado

• CDOT spent 14 years studying the I-70 corridor

the completion goal is set for 2022

the Project is estimated to cost $1.17 billion

Project Scope

Public Realm

Electrical Engineering



Clanton & Associates has developed street and pedestrian lighting master plans, lighting criteria, tours, pilot demonstrations, surveys, lighting measurements, and lighting research projects. Our extensive experience in creating street lighting master plans and guidelines for cities, assists our clients in making informed decisions regarding street lighting design to plan for the future of smart cities.