About the Project

The City of Boulder is studying Sumac Avenue from Broadway to 19th Street to address infrastructure needs and improve travel connectivity.

  1. Community Engagement

  2. Plan

  3. Design

  4. Build

  5. Complete

Project Overview

This project will improve travel infrastructure and connectivity for everyone traveling on Sumac Avenue from Broadway to 19th Street. This includes continuous sidewalks, pavement maintenance and storm drainage improvements.

The city is prioritizing work on this street due to its deteriorating pavement conditions and its connection to nearby Crest View Elementary School. Improvements to this part of Sumac Avenue also support creating walkable and bikeable routes to key destinations in Boulder, a priority of both the City of Boulder's Transportation Master Plan and Low-Stress Walk and Bike Network.

An aerial of Sumac Avenue from Broadway to 19th Street
The project area.

Provide Your Input

In-person Open House

The City of Boulder invites community to learn about and provide feedback on proposed concept designs to improve travel on Sumac Avenue between Broadway and 19th Street. Community members can participate at the project open house.

The open house will include information on designs, past project work, the project timeline and funding. Proposed designs include pavement maintenance, continuous sidewalks, storm drainage improvements, improved curb and gutter, traffic calming, and a crosswalk for people walking and biking from Sumac Avenue across Broadway to Wonderland Lake.


Wednesday, May 15 from 5-7 p.m.


The Maker Space Room 310 at Crest View Elementary School,1898 Sumac Avenue.

Online Materials

Open house materials will be available on Be Heard Boulder through May. Materials will be posted after the in-person open house.


  • January 2024: City staff resumed this project after a pause due to staffing and financial reasons.

  • Spring 2024: The city will host in-person and virtual engagement opportunities to provide information on work done so far and next steps.

Following community engagement, we will advance design, and finalize project funding and implementation. Staff will meet with individual property owners on Sumac Avenue to discuss these next steps.


This project began in 2019 and was paused in 2020 for staffing and financial reasons. In 2019 and early 2020, the city hosted two community meetings. Materials from past in-person open houses available upon request

Annexation Agreements

Property owners with frontage, or land affected by the project, may share in the cost of the improvements according to the existing annexation agreements below. The City of Boulder will work in partnership with property owners to determine reasonable allocation of project costs.

Agreements sorted by property

Stay connected

The city will share project updates when available on this webpage and through the Transportation and Mobility newsletter.