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Ralston Road Project

What's Happening Now 

Updated 11/24 - Traffic Alert Ralston Road Phase Two:

The following closures and restrictions are in place for the week of November 28, 2021:
  • Access to southbound Allison Street at Ralston Road has been fully restored.
  • The north side of Allison St at Ralston Road remains closed for water line work until further notice. 
  • A lane shift is in place on Ralston Road from Allison to Balsam to accommodate lateral water line work. Caution is advised.
  • Another lane shift is in place at the west end of the project from Garrison to Estes to accommodate new water line work on the south side of Ralston Road. Crews have restriped the roadway and all pavement markings have been updated for driver safety.
  • Occasional, short-duration (5 minutes) traffic holds will exist on Ralston Road between Allison Street and Balsam Place while utility crews drop overhead power lines and safely remove them from the area. The holds will take place sometime between 8:30 a.m. and 3:30 p.m. Monday to Thursday with traffic directed by flagger operations. 
  • Various lane closures will continue to be in place from 8:30 a.m. to 3:30 p.m. Monday to Wednesday in both directions of Ralston Road within the project limits for water line, traffic signal foundation and potholing work. Some overnight closures will also be in place within the work zone.
  • Detour signage is in place to alert motorists to the closures. Speeds are reduced and north sidewalks are closed between Yukon and Estes.

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 short term road closure.

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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