Important Updates:

The city expands beta to preview its new website and gather feedback. | More Info


The City of Boulder welcomes your feedback. Use our Inquire Boulder customer service tool to tell us what’s on your mind.

  • Transportation Division
  • Maintenance
  • Maps of the Transportation System
  • Transportation Master Plan
  • Airport
  • Transportation Safety
  • Boards
  • Bike
  • Bus
  • Walk

19th Street Multimodal Improvements Project

Anticipated Project Schedule

2017 - 2019    - Project Planning and Design, Community Engagement

2020 - 2021  - Design and Permitting

Early/Mid 2022   - Construction to begin and is anticipated to take 6-9 months to complete

Thanks to all who attended the Bilingual Zoom Meeting on January 27! Meeting materials, including the recording, PPT slides and draft renderings shared during the call can be found below.

Public Meeting Materials 

To view materials from the January 27th meeting that relate to the 19th Street at Fourmile Canyon Creek Underpass, visit the project webpage

Selected Alternative: Concept 4

On Nov. 21, 2019, the project team hosted an open house, with 78 people in attendance, to share the five conceptual design alternatives being considered for the project and asked for the community’s feedback on a preferred alternative and reasons for that preference. There was a comment form available at the open house and online The goal was to learn which option was preferred so we can balance the needs of the community and meet the goals of the Transportation Master Plan. Your input was utilized as a final concept is selected.

Thanks to all who provided their input on the 19 th Street Multimodal Improvement Project! We received a total of 58 completed comment forms. Whether you completed it at the open house on November 21, or provided it online, we appreciate your feedback.

Both the meeting comment forms and the online comment forms expressed a preference for Alternative 4 which includes a combination of attached and detached sidewalks and buffered bike lanes. Read the Community and Environmental Assessment Process report (CEAP)  CEAP pdf.

Concept Alternative 4

Read about public comments, the recommended design alternative, next steps and how you can stay involved  Alt 4 pdf.  Read the Community and Environmental Assessment Process report  CEAP pdf

Public Meetings 

Feb. 10, 2020  Transportation Advisory Board (TAB) meeting, 6 p.m., City Council Chambers, 1777 Broadway. There will be a public hearing and the board will consider a staff recommendation on the project's community and environmental assessment process. You are invited to participate and share your thoughts 

Nov. 21, 2020 Open House Meeting Materials: 

Project Background

19th Street from Norwood to Sumac avenues is an important multimodal travel corridor in north Boulder. Currently, there is an on-street bikeable shoulder and an existing sidewalk on the east side. These were constructed in the 1990s but the sidewalk does not meet current city design standards. The on-street bikeable shoulder ends at Violet Avenue and is then a designated bike route from Violet Avenue north to Yarmouth Avenue. On the west side of 19th Street, the sidewalk is not continuous from Yarmouth to Norwood avenues. 

19th Street from Norwood to Yarmouth avenues has been given a high priority on the city's Missing Sidewalk Links program.  The Missing Sidewalk Links program identifies, prioritizes and constructs missing sidewalk segments to provide a continuous pedestrian network and ensure a safe walking environment.

In 2014, the city submitted an application for federal funding to construct a 5-foot-wide sidewalk, install curb and gutter on the east side and complete the missing sidewalk links on the west side of this corridor. The project received funding from the Colorado Department of Transportation (CDOT) Transportation Alternatives program (TAP) and the Federal Highway Administration's Safe Routes to School grant program for the estimated project costs.

The city is also planning improvements along Fourmile Canyon Creek to improve safety and accessibility to Crest View Elementary School by completing an underpass at 19th Street and Fourmile Canyon Creek. Learn more on the Fourmile Canyon Creek webpage . The two project teams are coordinating efforts.

The Boulder Valley School District (BVSD) anticipates construction of bond funded improvements to Crest View Elementary School in summer 2020. The city will coordinate with BVSD through planning and design on each of these projects. 

Further exploration of the Wonderland Creek floodplain was conducted from late fall 2018 through summer 2019 to understand expectations for achieving the floodplain development permit requirements.  Two additional alternatives were included in the project's Community and Environmental Assessment Process (CEAP)  to meet the identified facility type for 19th Street through the  Low-Stress Walk and Bike Network Plan  and  to address Transportation Advisory Board feedback provided in August 2018. All design alternatives also now incorporate the features needed to meet floodplain mitigation requirements. 


Photos of existing conditions

Project Improvements

From Norwood to Sumac on both the east and west sides of 19th Street:

  • Install continuous sidewalks, curb and gutter on both sides of 19th Street from Norwood to Sumac avenues
  • Convert the existing bikeable shoulders to an on-street bike lane facility   Note: On-street parking will not be permitted with the transition from a bikeable shoulder to a bicycle lane with the addition of curb and gutter.
  • Upgrade or install pedestrian curb ramps
  • Plant new landscaping and trees to replace trees that will be removed in conjunction with this project
  • Install a new storm sewer pipe and drainage inlets from Sumac Avenue to Wonderland Creek
  •  Replace existing Wonderland Creek culvert with a 24 foot-wide by 4 foot-high culvert to meet floodplain development permit requirements
  •  Bus stop improvements
  • Traffic calming and a reduction of the posted speed limit from 30mph to 25 mph. 

The speed mitigation devices being considered for the project include speed cushions, raised crosswalks, medians, curb bulb-outs, traffic circles and radar feedback signs.  The project will also install enhanced pedestrian crossings where city guidelines identify them to be appropriate.  All enhanced crossings installed through the project will include adequate street lighting and signage (State Law—Yield to Pedestrian).

From Sumac to Yarmouth:

  • Plan for future multimodal improvements for when funding becomes available

Community and Environmental Assessment Process 

During the city's annual capital improvements budgeting process, an interdepartmental team identified the 19th Street project to utilize the city’s Community and Environmental Assessment Process (CEAP).  The CEAP is a formal review process to consider the impacts of public development projects. The purpose of the CEAP is to assess potential impacts of conceptual project alternatives in order to inform the selection and refinement of a recommended conceptual design alternative. The CEAP provides the opportunity to balance multiple community goals in the design of a capital project by assessing a project against the policies outlined in the Boulder Valley Comprehensive Plan, the Transportation Master Plan, departmental master plans, and sub-community or area plans (if applicable). The CEAP also ensures that environmental, social and fiscal impacts of projects are minimized and assures compliance with city policies, plans and regulations.  

The final CEAP for the 19th Street project will be reviewed and provided official recommendation by the City of Boulder CEAP Review Group, the city's Transportation Advisory Board and City Council.

Previous Community Engagement Events

  • The city held a second open house on Thursday, April 19, 2018, for the public to view project alternatives, provide feedback and inform the selection of the preferred design. An online questionnaire was also open until May 14, 2018. Review the materials presented on April 19 here pdf and comments received from the public through the open house, emails and online comment form between April 19 and May 14, 2018 here pdf.

  • The project team attended the Community Cycles Advocacy Committee meeting on Feb. 5, 2018, to better understand their comments submitted through the "A Vision for 19th Street" report.

  • The project team participated in a WTS-Centennial Middle School Transit Study field trip with Centennial students on Jan. 23, 2018, to better understand their perception and use of transit. The field trip traveled from Centennial along Norwood Avenue to the transit stops at Norwood Avenue and 19th Street.  

  • The project team hosted two site walks on Wednesday, Sept. 27, and Thursday, Sept. 28, 2017, to learn more about the project area and gather ideas for multimodal improvements. Read a summary of comments received from those who joined the site walks here pdf

  • The project was featured at the May 22, 2017, North Boulder Public Works Open House. You can review materials pdf and review the draft summary of comments received from the public at the open house here docx.

  • North Boulder Open House Meeting and Boulder Valley Comprehensive Plan (BVCP) Listening Session, Nov. 18, 2015 


Stay Connected

Email Address:


For information, contact: Lindsay Merz ● Transportation Division ● 303-441-1983 ● [email protected]