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Public Works

Broadway and Highlands Ranch Parkway Intersection Improvements


Project Manager

Benjamin Pierce, P.E.
[email protected] 303-660-7490


  • CDOT (Highway Safety Improvement Program (HSIP) grant funding)

Project Update

Updated February 23, 2024Project Schedule has changed – please see the “Schedule Section” below for updates.

Final Design Plans are ongoing for the extensive improvements at the intersection of Broadway and Highlands Ranch Parkway, to improve the overall safety of the intersection through the addition of a second southbound left-turn lane on Broadway accessing eastbound Highlands Ranch Parkway, and widening Highlands Ranch Parkway through the Broadway intersection to include three (3) eastbound through lanes. In addition, the existing traffic signal will be redesigned to accommodate the wider intersection.


The design of the intersection, the utility relocations, and the right-of-way (ROW) acquisitions needed to construct the project are all anticipated to occur throughout 2024 and 2025. Construction of the Broadway and Highlands Ranch Parkway improvements are anticipated to begin in 2026, utilizing the Highway Safety Improvement Program (HSIP) Federal grant funding administered by CDOT in the amount of $1.125 million. Depending on funding availability, the Highlands Ranch Parkway widening portion of the project may be removed from the initial construction package and built at a later date.

An interim solution has already been implemented to help improve the Broadway/Highlands Ranch Parkway capacity, reduce delay and improve overall safety for the motoring public, as follows:

  • Traffic signal heads were swapped out for northbound, southbound, and westbound directions, to upgraded ‘three-section left-on green arrow only’ signal heads. These upgrades will help to address left turn accident patterns at this very busy intersection.
  • Traffic signal timing was also adjusted to accommodate prevailing traffic volumes.
  • Existing gore pavement markings were removed to open a new second left turn lane pocket for westbound Highlands Ranch Parkway to southbound Broadway.
  • Signs and pavement markings were upgraded to advise drivers of improvements including the R3-8 Double Left Turn sign installed on the mast arm and two left-turn arrows on the roadway.
  • Additionally, channelizer lines and double yellow lines were refreshed with paint to complete this transformation.


Estimated Timeline for Design and Construction:

  • Final Design completion:  2024 and 2025
  • ROW acquisition and Utility Relocation: 2024 and 2025
  • Broadway and Highlands Ranch Parkway Construction anticipated to start:  2026

Project Photos