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Ralston Road Project

What's Happening Now 

Phase One (Upham to Yukon Streets) important traffic update: Beginning Monday, December 21, traffic will switch to the south side of Ralston Road, with one lane in each direction. Left turns will not be permitted onto or off of Ralston Road. This configuration will remain in place through April 2021. 

Schedule for Week of March 1: While the full closure of the north side of the corridor will remain in place, traffic will maintain one open lane in each direction, from Olde Wadsworth Blvd to Upham St.

We ask motorists to drive carefully through the work zone, as slowdowns and delays are possible. 

Typical working hours are from 8 a.m. to 4 p.m., Monday through Friday.

Contact information for Phase One: 720-443-0999 or

Parking lot at Griff's site closed: Public parking will be unavailable in the Griff's lot for construction activity.

Phase Two (Yukon to Garrison Streets): Update week of Feb. 15 - Utility work will begin the week of February 15, 2021. Beginning at Garrison Street and proceeding east, Xcel's contractor will have one lane closed in each direction while they work to complete utility relocations. Left turns will be restricted in the work area. Please use caution in the work zone. 


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.

Phase One Project Update: As of the end of 2020, crews have made significant progress on the project (70% of the work is now completed).  Throughout the Winter and spring of 2021 the below items slated for completion include:

  • Retaining wall on the Northwest Corner of Olde Wadsworth
  • Reconstruction of the Arvada Monument Sign on the Southeast corner
  • Installation of Street Lighting
  • All sidewalks
  • Replacement of medians at Olde Wadsworth
  • Final Paving
  • Landscaping and landscape restoration

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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For questions about the Ralston Road Improvement Project Phase One, please contact 720-443-0999 or

For questions about the Ralston Road Improvement Project Phase Two, please contact City Engineer Trang Tran, 720-898-7646 or