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Ralston Road Bond Project

The speed limit is 30 mph and there are no left turns from Ralston through the construction zone. Please help keep construction workers and community safe: obey speed limits, traffic signs and use caution through the new traffic alignment. 

Week of February 6

Travel Advisories

Closure of Ammons on the south side of Ralston Road
  • Ammons Street is closed and will reopen temporarily later next week
  • Closures will allow crews to remove roadway, sidewalks, curb and gutter and begin drainage work
  • All traffic will be detoured to W. 57th Avenue
Upcoming Closure of Allison, Zephyr & Yarrow on the south side of Ralston Road
  • Allison Street will be closed starting late next week
  • Zephyr and Yarrow will also be closed starting in mid to late February  
  • The closures are necessary while crews perform drainage work and removals of the roadway, sidewalks, curb and gutter
  • All traffic will be detoured to W. 57th Avenue
  • The closures will be in place until further notice
  • Balsam at the south side of Ralston Road will be closed during Spring Break (week of March 20)

General Advisories

  • There is a slight traffic shift on Ralston at Estes during drainage work
  • Driveways to businesses located at Field, Dover, Dudley, Estes and Everett will be temporarily paved by late January 2023
  • The paving of the south side of Ralston Road from Garrison to Balsam has been postponed until spring 2023
  • No left turns are permitted in either direction of Ralston Road through the construction zone (Yukon and Garrison) due to the lack of turn area
  • Reduced sidewalk access exists within the project limits
  • Speeds are reduced to 30 mph in the work zone

Arvada K-8 School Traffic Advisory

  • Balsam will be closed to install water lines and perform removals during Spring Break (March 20 to March 24)
  • Crossing guards will be present on Balsam Street in the afternoons
  • Pedestrian signals are operational
  • Sidewalk access is limited through the school zone on Ralston Road

Contact Information

Please contact us directly at 720-998-6223 or sign up for email alerts

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The City of Arvada and Hamon Infrastructure appreciate your patience and understanding during this project.


Project Description

This project will widen and improve the Ralston Road corridor between Upham and Yukon Streets (Phase One-complete) followed by the segment between Yukon and Garrison Streets (Phase Two-in progress). 

Ralston Road is a major east-west corridor for Arvada, serving 23,000 vehicle trips each day. It provides connectivity to major north-south corridors and serves five the Regional Transportation District (RTD) bus lines.

What the Project Entails

  • 8-foot wide pedestrian path (similar to a trail) will provide access to parks and trails. This sidewalk width exceeds ADA minimum, allows pedestrians to walk side-by-side or with their pets and creates distance from the travel lanes.
  • Widen the existing 9 foot vehicle travel lanes to 11 feet to help decrease sideswipe accidents.
  • Installation of gutter pans to provide an additional 1 foot of space for the accumulation of rain, snow, and debris outside of the travel lanes.
  • Widen the center two-way-left-turn lane to 12 feet to increase driver safety/comfort while stopped between passing vehicles.
  • Reconstruction of aging traffic signals with new technology to improve traffic progression.  

What to Expect During Construction

  • Access to all businesses along Ralston Rd is open during construction.
  • RTD service along Ralston Road will continue during construction.
  • There will be lane closures and periodic closures of roads that cross Ralston Road.
  • Construction will be conducted in stages in order to efficiently use resources. It may appear that construction moves around or stops and starts in certain areas.  
  • There will be disruptions to your typical travel on Ralston Road. We encourage all residents to consider alternate routes and plan for additional travel time.

2023 Updates

Take a look at just a few of the numbers that reflect some of the work completed this year on Ralston Road. 63,360 square feet of new road and 26,400 square feet of new sidewalk repaved. 48 curb ramps and 8 new traffic signals installs. Progress is being made and we look forward to the completed upgrades through the corridor.

overview of project work completed in 2023