The Broadway Transit Improvements Project will improve bus travel time and reliability, and safety and accessibility for all travelers on parts of Broadway/CO 93 between Regent Drive and Table Mesa Drive.

Completion Date
2026

Project Overview

Broadway is a key local and regional transit corridor where over 12,000 people travel by bus daily. During peak traffic hours, traffic congestion prevents reliable transit travel times, including a greater delay at the Table Mesa Drive intersection for left-turning buses than for any other vehicle.

This project will reduce bus delays and significantly improve travel time and reliability through:

  • Adding short segments of dedicated bus lanes to allow buses to bypass traffic queues at two intersections: Broadway and Regent Drive, and Broadway and Table Mesa Drive. There will be no impact to the number of regular vehicle lanes.
  • Designing and installing additional safety and accessibility improvements for all travelers at these two key intersections.

Separately, the project will also study the feasibility of repurposing the outside or right-most vehicle lanes to bus lanes within the project limits by analyzing traffic operations and transit travel time savings. Resulting recommendations and timing could inform a different potential project, depending on study results and funding.

Map of the project corridor on Broadway. Details on project webpage.

View full corridor map. 

Construction Update

Construction activities began in May 2026 at the Broadway and Regent Drive Intersection and are anticipated to be substantially complete by mid-August, before CU Boulder’s move-in week. Broadway and Table Mesa Drive intersection improvements will begin in late summer/early fall. The entire project will be completed by the end of the year. Expect daily vehicle lane closures from 9 a.m. to 4 p.m., impacts to bus stops, and detours for biking and walking.

Find updates and learn more on Cone Zones.

Construction-Free Walking and Biking Routes Map

Broadway & Regent Drive

Segments of the Broadway multi-use path along the CU Boulder Main Campus will be detoured during construction.

  • The detour route will be through campus via Green Mountain Street, Regent Drive and Kittredge Loop Drive.
  • Alternate routes are also available on other campus paths. See the CU Boulder Campus Map for additional options.
  • Broadway’s west-side sidewalk will remain open but the east-west crossings of Broadway at Regent will be closed, with a detour available north and south of the intersection.

A map showing the bicycle and pedestrian detour routes during construction at the intersection of Broadway and Regent Drive. 

Broadway & Table Mesa Drive

  • The east side Broadway Multi-Use Path at the northeast corner of the intersection will be most impacted during construction.
  • Path detours will utilize the Bear Creek Path Underpass and crosswalks at the intersection to direct people walking and rolling around construction.

A map will be posted in July.

Timeline

The project has two main parts:

CO 93/Broadway Intersection Improvements

  • Winter 2024 - 2025: Data analysis, conceptual design development and community engagement.
  • Spring 2025: Finalize design and share with the community.
  • Summer 2026: Construction begins during the summer to limit impacts during the academic year.

Bus Lane Study

  • Winter 2024-2025: Data analysis.
  • Spring 2025: Study bus lane feasibility.
  • Summer 2026: Share study results with the community.
  • Future: This project will not implement any potential changes from the study findings. What is implemented and when will depend on the results of the study and available funding.

View the designs

Before | Existing Conditions

A diagram of the existing intersection layout at Broadway and Regent Drive. Details below in webpage.
  1. During peak periods, the northbound travel lanes on Broadway approaching the Regent Drive intersection become significantly congested, and buses are stuck in traffic.
  2. The northbound right-turn lane from Broadway to Regent Drive permits greater vehicle turning speeds, which reduces the likelihood of people driving yielding to people in the crosswalk and increases the severity of crashes if they occur. Crashes at right-turn slip lanes are one of the common crash types identified by the Vision Zero Action Plan.
  3. The Broadway multi-use path splits south of Regent Drive, with a narrow, pedestrian-only path and a separate two-way bicycle path, before these paths rejoin. This leads to confusion and potential conflicts because people biking and rolling often use the more direct pedestrian path.
  4. Ramps on the northeast and southeast corners are not currently Americans with Disabilities Act (ADA) compliant.

After | Design Improvements

A diagram of the proposed intersection layout at Broadway and Regent Drive. Details below on project webpage.
  1. Add a northbound bus lane through the intersection to allow buses to bypass traffic queues and reduce impacts on other vehicles by removing buses from the primary vehicle travel lanes through the intersection. This will reduce travel delay for transit riders, particularly during peak periods. People who drive can cross the bus lane for right-turn access to Regent Drive.
  2. Realign the northbound right-turn lane from Broadway to Regent Drive to increase the visibility and safety of people walking, rolling and biking in the raised crosswalk and on the multi-use path.
  3. Align pedestrian path with existing two-way bicycle path south of Regent Drive by creating a wider multi-use path, reducing confusion and potential conflicts between people walking, rolling and biking.
  4. Installing upgraded ramps to improve accessibility and ensure compliance with the Americans with Disabilities Act (ADA).

The vehicle lane configuration is not changing.

Before | Existing Conditions

A diagram of the existing intersection layout at Broadway and Table Mesa Drive. Details below on project webpage.
  1. Congestion in the southbound left turn lane during peak periods causes significant delays for transit. The long queues overflow into the left-most southbound through lane, resulting in impacts on through travel.
  2. The westbound right turn lane from Table Mesa Drive to Broadway permits greater vehicle turning speeds, which reduces the likelihood of people driving yielding to people in the crosswalk and increases the severity of crashes if they occur. Crashes at right-turn slip lanes are one of the common crash types identified by the Vision Zero Action Plan.
  3. The existing driveway is very close to the intersection and increases risk of conflict between people driving and people on the Broadway multi-use path.

After | Design Improvements

A diagram of the proposed intersection layout at Broadway and Table Mesa Drive. Details proceed image on project webpage.
  1. Add a southbound bus left-turn lane to allow buses to bypass queued traffic in the adjacent southbound left-turn lane, reducing travel delay for transit riders, particularly during peak periods.
  2. Extend the southbound left-turn lane to allow for longer queues and move left-turning vehicles out of the southbound through travel lanes.
  3. Close the existing driveway near the intersection to reduce potential conflicts between vehicles and people on the multi-use path. Access to the shopping center is maintained via driveways further south on Broadway.
  4. Realign the westbound right turn lane from Table Mesa Drive to Broadway to improve safety by reducing vehicle turning speeds. This will increase the visibility of people walking, rolling and biking in the raised crosswalk and on the multi-use path. Slower turning speeds also give people driving more time to stop for people in the raised crosswalk and reduce the severity of crashes if they occur.
  5. Expand the island at the northeast corner of Broadway and Table Mesa Drive to decrease crossing distances, reducing the time someone crossing the intersection is exposed to traffic. The westbound bike lane on Table Mesa would also be realigned and raised to sidewalk-level to reduce conflicts with right-turning vehicles and buses.

The vehicle lane configuration is not changing.

FAQs

Broadway is on the route for regional and local bus services, including the Flatiron Flyer (FF1, FF2 and FF5), AB1, GS, DASH, SKIP and 225. These buses connect Boulder to Broomfield, Denver, Golden, Louisville, Superior, Westminster and the Denver International Airport (DIA).

Currently, in the southbound direction, scheduled transit travel times on the corridor increase from 11 minutes during off-peak travel times to 19 minutes during peak periods, and on-time performance falls from 85% to 70% in the evening peak travel period. Buses turning onto Table Mesa Drive from Broadway are on average delayed 107 seconds at the intersection compared to 63 seconds for vehicles. At Regent, buses and vehicles are delayed approximately 30 seconds. The short segments of proposed bus lanes at both intersections would allow buses to bypass queued traffic, significantly reducing delays for the thousands of people riding the bus every day.

Bus lanes are dedicated to transit vehicles to help speed up transit travel time and improve reliability and safety.

  • Curbside bus lanes can be used by buses and right-turning vehicles.
  • Left-turn bus lanes can only be used by buses.

The new bus lanes on Broadway will be short additions focused at the intersection to help buses to bypass traffic queues. They will be marked and signed similarly to other bus lanes in the city, making it easier for all travelers to see where to go.

28th and Colorado bus only lane markings
Curbside bus lane at 28th Street and Colorado Avenue. 
Seattle bus-only left turn lane

Left-turn bus lane example in Seattle. Courtesy of Seattle Department of Transportation. 

Local and regional planning documents provide policies, objectives and actions that guide the planning, delivery and funding of city services, infrastructure and programs.

  • Boulder Transportation Master Plan: The City of Boulder’s 2019 Transportation Master Plan (TMP) has a renewed emphasis on moving people rather than vehicles with high quality, high frequency, reliable transit being the backbone of an efficient transportation system. The TMP calls for improvements to support Bus Rapid Transit (BRT) and other regional service, thereby increasing transit travel speed and reliability along regional corridors.

  • RTD Northwest Area Mobility Study: The Regional Transportation District's 2014 Northwest Area Mobility Study identified the Broadway/CO 93 corridor as an opportunity for transit system improvements that would facilitate existing and future Bus Rapid Transit (BRT) services, along with other regional and local transit.

  • Boulder Vision Zero Action Plan: Vision Zero is Boulder’s goal to reduce the number of traffic-related fatalities and serious injuries to zero. The 2022 Vision Zero Action Plan identifies the Broadway/CO 93 corridor as part of the High Risk Network, where nearly half of all fatal and serious injury crashes occur, or are likely to occur in the future, despite comprising only a small part – just 7% – of city streets. The plan calls for improving safety for all travel modes through intersection and traffic signal improvements.

  • Core Arterial Network: The Broadway Transit Improvements Project is one of several projects on Boulder’s Core Arterial Network (CAN) initiative. The CAN is a years-long comprehensive roadway redesign effort toward safer, more connected and more comfortable travel on 13 arterial streets, which are key high-traffic streets.
  • Boulder Valley Comprehensive Plan: The 2020 Update to the Boulder Valley Comprehensive Plan recommends a safe, accessible, and sustainable multimodal transportation system that provides travel choices, is equitable and reliable, and supports climate commitments.

  • DRCOG 2050 Metro Vision Regional Transportation Plan: The Denver Regional Council of Governments' 2050 Metro Vision Regional Transportation Plan (2024) prioritizes investments that provide mobility choices, specifically investments in the region’s Bus Rapid Transit (BRT) System. It identifies Broadway/CO93 as a transit corridor in need of safety and multimodal (taking the bus, walking, bicycling, and driving) improvements.

  • CU Boulder Transportation Master Plan: The 2020 University of Colorado Boulder Transportation Master Plan found that over 20% of students, faculty, and staff travel to campus via the bus. The plan’s goals include reducing the total number of cars being driven to campus, encouraging the use of alternative transportation modes, and achieving greenhouse gas reductions from campus transportation.
  • CDOT 10-Year Plan: The Colorado Department of Transportation's 10-Year Plan, adopted in May of 2020, identified intersection improvements on along Broadway/CO 93 to relieve traffic congestion.

  • Boulder Low-Stress Walk and Bike Network Plan: The 2019 Low-Stress Walk and Bike Network Plan calls for a network of low-stress facilities to help people of all ages and abilities walk and bike safely and comfortably throughout the community.

  • DRCOG South Boulder Road Corridor Study: The Denver Regional Council of Governments (DRCOG) South Boulder Road Corridor Study (2024) calls for enhancing transit speed, reliability, and frequency along South Boulder Road and Table Mesa Drive from Broadway to 120th Street in Lafayette.

The Broadway Transit Improvements Project is part of Boulder's Core Arterial Network (CAN) initiative. The CAN is a years-long comprehensive roadway redesign effort toward safer, more connected and more comfortable travel on 13 arterial streets, which are key high-traffic streets.

This project is one of several CAN projects with a smaller project scope. It will not change or repurpose current vehicle travel lanes, and all project work will take place in the existing public right of way. With fewer trade-offs, staff were able to develop and present a single conceptual design option to the community for input in winter 2024-2025.

Project intersection improvements are focused on Broadway and Regent Drive, and Broadway and Table Mesa Drive.

Separately, there are two grant-funded traffic signal projects: one at Broadway & Regent Drive, completed in June 2025, and another at Broadway & Baseline Road, which will be completed in 2026.

This project is partly funded by the Colorado Department of Transportation (CDOT) and a federal Transportation Improvement Program grant from the Denver Regional Council of Governments (DRCOG). The project will cost $4.6 million, with $3.98 million from state and federal funds, and $620,000 funded by the city.

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Nearby Projects

Two separate grant-funded traffic signal projects will improve safety on Broadway: one at Broadway & Regent Drive, completed in June 2025, and another at Broadway & Baseline Road, which will be completed in 2026.

  • The near-term Broadway & Regent Drive project will implement left-turn phasing that does not allow vehicles turning from 20th Street or Regent Drive to turn left when pedestrians are crossing Broadway at all times.

  • The Broadway & Baseline Road project will modify the eastbound and westbound Baseline Road approaches to allow for different types of left-turn signal phasing to operate throughout the day based on traffic conditions.

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