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Ralston Road Project

What's Happening Now 

Updated 05/17 - Traffic Alert Ralston Road Phase Two

The following closures and restrictions are in place for the week of May  15 - 21

Travel Advisory
Thursday, May 19 - 5:30 a.m. to noon
No vehicular access will be permitted to businesses located on the north side of Ralston Road from Yukon to Allison. This restriction will be in place while crews pave the north side of Ralston Road. When paving is complete, temporary ramps will be installed and access to businesses will be restored.

Other Updates

  • The north sides of Ammons and Allison streets at Ralston Road remain closed until further notice.
  • A minor lane shift exists on Ralston Road at Carr to accommodate truck traffic. A lane shift also exists at the west end of the project from Garrison to Estes to accommodate water line work.
  • Lane revisions and single lane configurations will continue to be in place in both directions of Ralston Road through the work zone. The project limits extend from Yukon to the east to Garrison to the west. Caution is advised.
Construction devices, signage and pavement markings are in place throughout the work zone. Speeds are reduced to 30 mph. No sidewalk access exists on the north side of Ralston Road from Yukon to Everett.

Contact the Public Information Hotline 

Please contact us directly at 720-998-6223 or sign up for email alerts to continue receiving updates and advisories on this project. 

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

Additional traffic control information: Lane, shoulder and sidewalk closures are in place 24/7 in both directions of Ralston Road within the project limits. Traffic is being shifted into a single lane in each direction to accommodate access to utilities and for asphalt and concrete removals. Two-way travel is being maintained. Cones, barrels and signage are in place to alert motorists and pedestrians to closures and restrictions. Caution is advised.

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Phase One (Upham to Yukon Streets): This phase of the Ralston Road Reconstruction Project is largely complete. 


As part of the City’s ongoing efforts to provide sustainable infrastructure for our growing city, we are undertaking a project to widen and improve the Ralston Road corridor between Upham and Yukon Streets (Phase One) followed by the segment between Yukon and Garrison Streets (Phase Two). 

Ralston Road is an arterial roadway and a major east-west corridor for Arvada’s transportation network, serving 23,000 vehicle trips each day. It provides connectivity to major north-south corridors including three State Highways (SH-95/Sheridan Blvd., SH-121/Wadsworth Blvd., and SH-72/Ward Road). The Regional Transportation District (RTD) operates five bus lines using portions of Ralston Road. Major destinations served by Ralston Road include Olde Town, Stenger/Lutz Sports Complex, City Hall, Ralston Central Park, and the Ralston Creek North shopping area.

Highlights of the project

  • Creation of 8-foot wide pedestrian path (similar to a trail), allowing cyclists access to parks and trails. This sidewalk width exceeds ADA minimums and supports the needs of Arvada’s aging population. It also 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. This will help decrease sideswipe accidents.

  • Installation of gutter pans to provide an additional 1 feet 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 will be maintained throughout 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.

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