Final design and construction fully funded for part of the corridor
Boulder City Council has formally approved the North 30th Street Preliminary Design project to move forward in making travel on north 30th Street safer, more connected and comfortable for all. The city will advance design on part of the street beginning this fall, with construction anticipated to start in 2027 at the earliest.
The city will first proceed with funded final design and construction on part of the project corridor, 30th Street between Pearl Street and CO 119, or the Diagonal Highway, and the 30th Street and Arapahoe Avenue intersection. This work is funded by a Safe Streets and Roads for All grant awarded to the city in 2023 to prevent roadway fatalities and serious injuries. Implementing the remaining project recommendations will take several years as funding becomes available, as is typical for large transportation infrastructure projects.
Council members reviewed and approved both the recommended conceptual design and the project’s Community and Environmental Assessment Process (CEAP). The CEAP is a formal review process that considers various impacts of public development projects to inform the selection and refinement of a recommended alternative. The city’s Transportation Advisory Board also unanimously recommended council approval following their review of the evaluation and design at the board’s June 23, 2025, meeting.
The project supports Boulder's Vision Zero Action Plan to end serious and fatal crashes, as 30th Street is a current top crash location and on the High Risk Network — city streets with the highest future risk of serious and fatal crashes. The project is also part of the city’s priority Core Arterial Network initiative: a comprehensive, data-driven roadway redesign effort that will make travel along Boulder’s main streets safer, more comfortable and convenient for all as supported by Boulder City Council.
"We can prevent these avoidable crashes, and we can do it with community- and data-informed decisions," said Valerie Watson, interim director of the city’s Transportation & Mobility Department. "Council and funding support allows us to move into the work of finalizing design and construction to save lives, particularly on this street where we see high numbers of people walking, bicycling and taking the bus every day."
Community members can view the latest information on the last virtual open house and at events this summer. The city will post details to the project email and webpage as events are confirmed. Learn more on the project webpage and sign up for updates via the project email or the Transportation and Mobility Department newsletter.