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Ralston Road Project

What's Happening Now 

Updated 05/26 - Traffic Alert Ralston Road Phase Two

The following closures and restrictions are in place for the week of May 29 - June 3.

Travel Advisory
Starting on Tuesday, May 31
and lasting until further notice, the City of Arvada and Hamon Infrastructure will close Dudley Street at Ralston Road while crews perform sanitary sewer line work. Detour signage will be in place offering alternate routes.

Closure Details

  • During this extended closure there will be no ingress/egress to Dudley Street at Ralston Road.
  • The closure will be in place 24/7.
  • Detour signage will be present directing motorists to W 57th Ave to bypass the closure.
  • The closure is necessary while crews begin sanitary sewer line work.


Other Travel Impacts

  • The north sides of Balsam and Brentwood at Ralston Road are closed to through traffic. These closures are in effect until further notice.
  • Ralston Road at Dudley Street will be under a single lane closure on Friday, June 3 during water line work. Traffic personnel and signage will be present to direct alternating eastbound/westbound traffic through the single lane configuration.
  • Lane revisions and single lane configurations continue to exist 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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