• 2014 – The City of Aspen identified the Castle Creek Bridge and Hallam Street corridor as deficient link in Aspen’s bicycle and pedestrian network.  The City of Aspen Open Space and Trails identified this deficiency as its number one priority project.
  • 2014 – City Staff began the process of gathering information to implement the Connectivity Study to provide the best solution for improvements along the corridor. Surveyed information gathered by the City indicated that the Castle Creek Bridge and Hallam Street, together, make up an area that people would like to see improved for both pedestrian and bicycle users entering Aspen.
  • 2014 – The City contracted Loris & Associates to develop a conceptual plan including public outreach that would improve the corridors overall function and safety
  • 2015 – Public outreach and planning continues for Living Lab Experiment due to public and stakeholder concerns that narrowing the roadway lanes on the bridge would have a negative impact on traffic and congestion
  • 2016 – City directed Loris & Associates to proceed with construction drawings
  • Summer 2016 – Living Lab Experiment was implemented to assess real conditions of the proposed design. The experiment determined that there are no substantial impacts to traffic flow and traffic patterns created by the proposed design. During the lab, there was a 67% increase in pedestrian and cyclist traffic over the bridge during over a five-week off-season span.
  • Winter 2016 – Snow Lab experiment which studied the impact of relocating the Hallam Street pedestrian crossing at 8th Street and the impact on bus movements, traffic flow and snow removal operations. With input from RFTA, the public, city staff and the design team, the appropriate adjustments were made based on the outcome of this experiment. City staff through the public outreach process learned that a majority of the public supported these proposed improvements and felt that the project will be a positive improvement for the community.
  • 2017 – The project was placed for bid originally in the Spring of 2017 and did not receive a bid due to the conflict with ongoing large projects within the valley and staffing for a complex project. The project was advertised a second time in fall 2017 and received the one bid from Gould Construction in November.
  • 2018 – Preconstruction outreach launches for construction beginning April 2, 2018.

Due to topographic, property and geometric constraints, safe and efficient travel options for cyclists and pedestrians are limited through this area. The project design has been a collaboration with many stakeholders including the City of Aspen Transportation, Streets, Engineering, Parks and Utilities. Colorado Department of Transportation and the Roaring Fork Transportation Authority have been critical stakeholders through the design of this project. Public and stakeholder outreach will continue to be a top priority for the duration of the project.

Please contact us with questions or input during this period of construction:

  • Email:
    Hotline (call or text): 970-618-5379