Intersection upgrades to keep buses on time, helping people reach destinations reliably

Starting Tuesday, Oct. 6 and lasting several months in 2026, the City of Boulder will progress the construction of intersection improvements and a dedicated southbound bus left-turn lane to the intersection of Table Mesa Drive and Broadway, or CO 93, following the near completion of work at the Regent Drive intersection. Both intersections are part of the Broadway Transit Improvements Project to reduce delays, significantly improve bus travel time and reliability, and install complementary safety and accessibility improvements for all travelers.

Weekday construction from 7 a.m. to 5 p.m. will impact driving, biking, walking, and taking the bus. This includes daily vehicle lane closures with at least one lane remaining open in each direction at all times, and a temporary closure of the northbound Broadway and Table Mesa Drive bus stop. View the detour map for crosswalk and bus stop closure details. Find bus route updates on the RTD website or Transit App. Bus impacts include:

  • Westbound AB1, DASH, FF1, FF2 and FF5 will use the Table Mesa Drive and 40th St stop (Stop ID 16681).
  • Access to the Northbound SKIP will be from its existing bus stop on Table Mesa Drive adjacent to the Shops at Table Mesa Shopping Center (Stop ID 16686).
  • Access to the Northbound GS will be from its existing bus stops on Table Mesa Drive at Darley (Stop ID 19182) or Dartmouth (Stop ID 12512).

Broadway between Regent Drive and Table Mesa Drive is a key local and regional transit corridor where over 12,000 people ride the bus every day. At the Table Mesa intersection, there are greater delays for left-turning buses than for any other vehicle. Adding dedicated lanes for buses while maintaining the number of vehicle lanes will support reliable travel times and improve safety for all who use the corridor. During the last phase of construction, the city installed a northbound bus lane at the Broadway and Regent Drive intersection to allow buses to bypass traffic queues and reduce delays, particularly during peak periods.

The project is funded in part by $3.98 million from the Colorado Department of Transportation and a Transportation Improvement Program grant distributed by the Denver Regional Council of Governments. Work is one of several ongoing projects as part of Boulder’s Core Arterial Network (CAN) initiative: a years-long comprehensive roadway redesign effort toward safer, more connected and more comfortable travel on 13 key, high-traffic streets. The project also supports city transportation goals, local climate goals and regional policies to provide the community with convenient, sustainable and reliable travel choices.

Learn more on the project webpage or Cone Zones and stay connected by signing up for the Transportation & Mobility Department Newsletter.

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