Utility, Signal, and Sidewalk Work Timelines
Colfax Mayfair BID Business Owners:
BRT construction is moving quickly through our district, upgrading intersection corners and installing soil cells for street trees. Most of the work below is on track to wrap up by the end of October.
This is the most disruptive stretch of work, and it should be through our district by year’s end.
Utility & Signal Work
- Eudora St. → Elm St. (South side): Utility and signal work through November
- Grape St. → Holly St. (South side): Utility, sidewalk and signal work through October
- Leyden St. → Magnolia St. (North side): Utility, sidewalk and soil cell work through November
Sidewalk Work (Soil Cells & Other Work)
- Eudora St.→ Glencoe St. (South side): Soil cell, sidewalk work through October
- Elm St. → Glencoe St. (North side): Soil cell work in progress through October
- Jasmine St. → Kearney St. (North side): Soil cell, sidewalk, and curb ramps through October
This work will move eastbound from Glencoe Street on the south side of Colfax from November through December.
Construction timelines may shift due to weather, underground conditions, utility conflicts, or other unforeseen field conditions. Please call the construction hotline with any questions or concerns specific to your business: 720-336-0025.

What is a Soil Cell?
All new street trees in our district will be planted in soil cells. You can see them underway now at Elm Street (north side of Colfax) and Fairfax (south side of Colfax). A soil cell is a strong, hollow frame installed in large rectangular planting bed under the sidewalk. Cement and a metal tree grate are placed on the surface. The soil cell keeps the soil underneath loose and gives the tree the space it needs to grow healthy roots and thrive in tough urban conditions. Intallation takes about four weeks, depending on the conditions.
