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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 April 3

Upcoming Advisories

Paving south side of Ralston Road - Garrison to Carr
  • Starting on Monday, April 3, paving the south side of Ralston Road will begin at Garrison and proceed east to Carr
  • Temporary ramps will be placed to grant business access as paving is completed
  • Partial closures of driveways and other access points to businesses east of Garrison will be necessary during work
    • Access to businesses will be maintained during paving operations
Field to Dover Closure on the south side of Ralston Road
  • Closed for paving 
  • Closures will be in place 24/7 until approximately April 7
  • Streets will reopen as work is completed
  • Business access will be maintained
All traffic will be detoured to W. 57th Avenue. Reference this map for more information.
Upcoming Closure of Zephyr & Yarrow on the south side of Ralston Road
  • Zephyr and Yarrow will also be closed starting approximately April 10 for drainage work and roadway, sidewalks, curb and gutter removal.
  • The closures will be in place until further notice.

All traffic will be detoured to W. 57th Avenue. Reference this map for more information.

General Advisories

  • Allison Street is closed on the south side of Ralston Road until further notice for drainage and water line work. 
  • 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

  • No left turn is permitted from westbound Ralston Road onto Balsam Street.
  • 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

 Sign up for project emails



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


The Public Works department presents to the City Council with updates about the bond projects at Ralston Road and W. 72nd Avenue. 

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.