South Broadway & I-25 Improvement Projects

Travel Advisory

While two-way traffic has been restored to Exposition Avenue between Lincoln and Broadway. please be advised that no lane delineation exists while work is still underway in the area. Caution is advised. Further, parking has been restored to the south side of E Exposition. No parking is permitted on the north side of E Exposition and limited pedestrian access will continue throughout the construction zone while crews finish construction of sidewalks and curb ramps.

Work is also currently underway on the east side of Broadway  just north and south of Exposition Avenue. The sidewalks, left lane and left shoulder lanes are closed and caution is advised. This configuration will continue until late January 2021. No parking is permitted and no pedestrian access exists in the work zone. Message boards and detour signage are in place to alert motorists and pedestrians to the closures.

Starting the week of January 25, the width of four entryways to the parking lots on West Broadway at Exposition will be reduced. These entrances serve Galleria of Stone, Quest Diagnostics (south parking lot/loading), Kitchens on Broadway and Performance Radiator. Business access will be maintained and coordinated by flagger operations. In addition, no pedestrian access to the west sidewalk will be permitted and traffic on Broadway will be shifted to the left three lanes with the right two lanes closed from Center to Ohio. 

Project Background

The City and County of Denver's is redesigning the interchange of I-25 and Broadway. The improvements aim to create a safe and efficient area for all transportation modes ̶ pedestrian, bicycle, transit, and automobile.

The redesign of the ramps to I-25 is intended to help ease congestion on Broadway and Lincoln, reduce the potential for crashes, enhance bicycle and pedestrian connectivity in the area, and improve access to and from RTD’s Broadway Station.

The improvements will also help accommodate economic development of the Gates District and Broadway Park redevelopment. This project will expand on previous improvements that have been implemented by Denver and CDOT. 

Project Features

  • Improves access to RTD’s Broadway Station by constructing a new north entrance through Exposition, allowing riders and transit buses to bypass the interchange area.
  • Increases the pedestrian and bicycle access to transit station by building new shared-use paths and rebuilding existing sidewalks.
  • Improves pedestrian and bicycle safety by building new, well-lit facilities with adequate protected space along and across Broadway and Exposition
  • Moves vehicles more efficiently with coordinated traffic signals and new lane configurations on Broadway, Ohio, and Lincoln.
  • New configuration of the southbound I-25 on-ramp minimizes backups on Broadway between Exposition Avenue and Kentucky Avenue

DOTI is committed to keeping people moving during construction. Crews will do as much work as possible to minimize effects. At the same time, there will be traffic shifts, lane reductions and detours during construction. DOTI will announce these changes as they are scheduled.

South Broadway and I-25 Improvement project map

Construction Update - week of January 18, 2021:

During the week of January 10 to January 16, crews laid out flatwork and rebar for curb and gutter work and performed concrete pours on the sidewalk and roadway from the southeast corner of Exposition to the Roth Living Sub-Zero showroom entrance on Broadway. Other work included continued excavation and drainage work in the Quest Diagnostics parking lot, curb and gutter upgrades site wide, and installation of irrigation sleeves on Broadway.

This week, crews will be preparing formwork and rebar for an additional 330 feet of curb and gutter on E Broadway. Other work includes additional concrete pours, drainage line installation, and irrigation and curb and gutter work.

Tree Irrigation Update:

The irrigation tap is done and the sleeves are being installed for future irrigation of the trees along Broadway within the project limits. This portion of work is slated to be done by April.

Next Phase of Work:

During the week of January 25, crews will move to a new phase of construction on the west side of Broadway at Exposition. This phase entails building a new section of roadway through the parking lot from Broadway to Bannock and making sidewalk, curb ramp, safety and aesthetic improvements. This phase is expected to last until early spring.

New Traffic Impacts:

Starting the week of January 25, access to four entryways to the parking lots on West Broadway for Galleria of Stone, Quest Diagnostics (south parking lot/loading), Kitchens on Broadway and Performance Radiator will be impacted while crews work on various construction activities. While business access will be maintained, ingress/egress will be coordinated during the period of construction. In addition, no pedestrian access to the west sidewalk will be permitted and traffic on Broadway will be shifted to the left three lanes with the right two lanes closed from Center to Ohio.

Temporary barrier, signage, construction cones and other safety measures will be in place to protect drivers and pedestrians through the work zone. 

Sidewalk/concrete pours at Exposition & Broadway

Finished sidewalk and driveway concrete pours on the southeast corner of Exposition and Broadway at ToyExus.

South view of poured area on Broadway

South view of poured area on Broadway from ToyExus at Exposition to Roth Living SubZero on Broadway

Crews prepared flatwork for final concrete pours

Crews prepared flatwork for final concrete pours

Concrete pour at Broadway and Exposition

Concrete pour at SE corner of Broadway at Exposition

Setting formwork and rebar on Broadway

Setting formwork and rebar on Broadway

Continuing asphalt removals and roadway work

Continuing asphalt removals and roadway work

Current Phases

CONSTRUCTION - Phase I: Exposition Ave & Broadway

Phase I:

Phase I reconstructs Exposition Avenue from Lincoln to Bannock Street. This construction phase expands Exposition west of Broadway to future align with the Bannock Street extension and installs new traffic signals on Exposition at Broadway and Lincoln.

This phase also minimally widens and reconstructs Broadway for half a block south of Exposition to provide wider sidewalks and streetscape.

Meetings and Public Outreach Materials:

Project Updates and Schedule:

The construction of Phase I will begin in August 2020.  The duration of this phase is appx. one year.

DESIGN - Phase II: Broadway & I-25 Interchange

Phase II:

Phase II replaces the southbound on-ramp to I-25 from Broadway and finalizes the extension of Bannock Street. This phase focuses on the multimodal connection improvements on Broadway, Lincoln, Ohio, and Kentucky. This phase also includes the reconstruction and installation of new traffic signals on Ohio Avenue between Lincoln and Broadway into RTD’s Broadway Station.

Project Updates and Schedule:

The design of Phase 2 is underway, and will take about a year to complete.  Construction likely won’t begin until Q1 2022.

Schedule, maps, updates »

Prior Efforts

CONSTRUCTION COMPLETED - South Broadway & Mississippi Avenue

South Broadway Reconstruction Project Wraps Up

Denver's Department of Transportation and Infrastructure has reconstructed a stretch of South Broadway from Kentucky to Arizona and a section of Mississippi Avenue between the Consolidated Main Line (CML) Railway and Sherman Street. The project began in March 2016 with the goal of improving overall mobility for people on bikes, on foot and in vehicles. 

Schedule, maps, updates »

Engineering Design

Right of Way:

The City and County of Denver's Broadway Arizona to Exposition Project will be constructed in three to four phases. As each phase is funded for construction, the City and County of Denver (City) will follow the Federal Highway Administration (FHWA) guidelines for acquisition of required properties within the project corridor. This guidance provides the City will follow their standard process of completing Right-of-Way plans, then City Council passing an ordinance authorizing property negotiations and acquisitions. Upon ordinance passage the City will contact affected property owners and begin the negotiation discussions, offers will be made after appraisals or value finds are completed. The City reserves the right to utilize imminent domain but will continue to negotiate to meet fair value agreements through the acquisition process.

Impacts determined during the Environmental Assessment can be found on page 3-20 and 3-21 of this document:

South Broadway Environmental Assessment and Section 4(f) Evaluation(PDF, 7MB)

Final Design Project Scope:

The overall project scope for these two projects will reconstruct South Broadway from Kentucky Avenue to Arizona Avenue and Mississippi Avenue between the Consolidated Main Line Railway (CML) and Lincoln Street. Improvements will include roadway widening; multi-use paths from Arizona to Kentucky along Broadway and from the CML to Sherman along Mississippi; pedestrian and street lighting; landscape and streetscape; and upgraded signalized intersections at Broadway/Tennessee and Broadway/Mississippi.

Meetings and Public Outreach Materials:

2010–2012 public outreach materials

Planning Efforts

Adopted in April 2016, the I-25 and Broadway Station Area Plan guides the future growth around the station and surrounding neighborhoods. The Plan identified the I-25 Interchange and Broadway Reconstruction as a project that will enhance the multi-modal environment within the S. Broadway corridor.

I-25 and Broadway Station Area Plan(PDF, 13MB)