US-285 & S Broadway Project

Share on Facebook Share on Twitter Share on Linkedin Email this link

Project Overview

The US-285 & S Broadway Interchange Reconstruction project will reconstruct the S Broadway bridge over US-285, making the bridge longer to accommodate additional through lanes on US-285. In addition to reconstructing the bridge, modifications will be made to the ramps and approaching roadways to provide safer and more efficient movements through the interchange. Modifications may include the relocation of access to US-285 from nearby driveways or local streets. This project will give the City an opportunity to improve cross-sectional elements on the South Broadway bridge over US-285. Such improvements may include: wider sidewalks, a buffer zone between pedestrians and vehicle traffic, improved aesthetics, and narrower lanes promoting safer driving as traffic enters the pedestrian dense downtown district. The City has contracted with the engineering firm ATKINS North America (referred to as “the consultant”) to perform environmental investigations and develop plans & specifications for construction.

Project Schedule

The design phase will start in early November 2020 and will continue to early 2021. Construction is anticipated for Spring/Summer 2022 to the end of 2023.

Project Details

The design phase of this project will have the consultant investigating and re-designing the following characteristics of the interchange.

Environmental Impact
The consultant will coordinate with CDOT to investigate and obtain clearances on various environmental resources and fully comply with all NEPA requirements for federally funded transportation projects

Interchange Configuration
The consultant will work with the City and CDOT to develop 4 concept level alternative interchange configurations. Below are a few configurations that will likely be considered.

Roadway Geometry Improvements
The new interchange will be designed to include 3 through lanes in each direction, while improving roadway geometry to meet with modern standards for driver and pedestrian safety and comfort. The consultant will investigate alternatives which include modifying the curve on US-285 to provide a more predictable and comfortable driver experience. The ramps will be designed to provide softer departure angles. Nearby driveways and side-streets will be modified to prevent conflicting movements, eliminating the frequency and severity of accidents.

Intersection and Driveway Access Modification
Improving the operation and safety of the intersection will require modifications to nearby intersections and driveways. For example, to eliminate weaving and provide a safe zone for traffic merging onto northbound US-285, access to US-285 from Sherman St to the South will need to be fully removed.

Bridge Replacement
The S Broadway bridge over US-285 will need to be replaced with a longer bridge to accommodate the additional lanes underneath. The bridge replacement gives the City the opportunity to improve on other sub-standard features on the S Broadway cross-section as well. Such improvements may include: an improved pedestrian and bicycle experience through wider sidewalks and a buffer zone between pedestrian and vehicle traffic, improved aesthetics on a keynote piece of infrastructure in the downtown district, and narrower lanes promoting safer driving as traffic enters the pedestrian dense downtown district.

Retaining Walls
As part of the bridge replacement the existing retaining walls will likely need to be replaced. The new walls will need to be set back to provide room for the additional lanes on US-285. The consultant will look into various wall types, including set back walls, which would provide greater visibility for drivers and a more open-space feel through the intersection.

Drainage Facilities
The additional lanes on US-285 correspond to more surface run-off that will need to be collected and responsibly discharged into the nearby Little Dry Creek. The consultant will look to address the additional run-off with detention areas and rain gardens.

Multi-Modal
The multi-modal improvements made through this project will be subtle, yet impactful. The types of bicycle and pedestrian facilities will remain primarily the same throughout the project, however, key changes will be made to improve the pedestrian and bicycle experience. The consultant will look into the following features that impact the pedestrian and bicycle experience:

  • Provide wider sidewalks on the S Broadway bridge
  • Provide a buffer zone between pedestrian and vehicle traffic wherever possible
  • Improve wayfinding signage
  • Improve overall aesthetic of the interchange

Aesthetic Improvements
The consultant team includes landscape architects which will select decorative features such as light fixtures, concrete detailing, plantings, and more. They will also look into alternative materials such as brick or stone for sidewalks or retaining walls to further provide a sense of place.

Project Funding

This project has three sources of funding. Federal funds awarded via a grant through the DRCOG Transportation Improvement Program, State Funds, and City of Englewood funds. The funding breakdown is as follows:

$7.6M (Federal)+$0.8M (State)+$1.2M (City of Englewood)=$9.6M

Project Overview

The US-285 & S Broadway Interchange Reconstruction project will reconstruct the S Broadway bridge over US-285, making the bridge longer to accommodate additional through lanes on US-285. In addition to reconstructing the bridge, modifications will be made to the ramps and approaching roadways to provide safer and more efficient movements through the interchange. Modifications may include the relocation of access to US-285 from nearby driveways or local streets. This project will give the City an opportunity to improve cross-sectional elements on the South Broadway bridge over US-285. Such improvements may include: wider sidewalks, a buffer zone between pedestrians and vehicle traffic, improved aesthetics, and narrower lanes promoting safer driving as traffic enters the pedestrian dense downtown district. The City has contracted with the engineering firm ATKINS North America (referred to as “the consultant”) to perform environmental investigations and develop plans & specifications for construction.

Project Schedule

The design phase will start in early November 2020 and will continue to early 2021. Construction is anticipated for Spring/Summer 2022 to the end of 2023.

Project Details

The design phase of this project will have the consultant investigating and re-designing the following characteristics of the interchange.

Environmental Impact
The consultant will coordinate with CDOT to investigate and obtain clearances on various environmental resources and fully comply with all NEPA requirements for federally funded transportation projects

Interchange Configuration
The consultant will work with the City and CDOT to develop 4 concept level alternative interchange configurations. Below are a few configurations that will likely be considered.

Roadway Geometry Improvements
The new interchange will be designed to include 3 through lanes in each direction, while improving roadway geometry to meet with modern standards for driver and pedestrian safety and comfort. The consultant will investigate alternatives which include modifying the curve on US-285 to provide a more predictable and comfortable driver experience. The ramps will be designed to provide softer departure angles. Nearby driveways and side-streets will be modified to prevent conflicting movements, eliminating the frequency and severity of accidents.

Intersection and Driveway Access Modification
Improving the operation and safety of the intersection will require modifications to nearby intersections and driveways. For example, to eliminate weaving and provide a safe zone for traffic merging onto northbound US-285, access to US-285 from Sherman St to the South will need to be fully removed.

Bridge Replacement
The S Broadway bridge over US-285 will need to be replaced with a longer bridge to accommodate the additional lanes underneath. The bridge replacement gives the City the opportunity to improve on other sub-standard features on the S Broadway cross-section as well. Such improvements may include: an improved pedestrian and bicycle experience through wider sidewalks and a buffer zone between pedestrian and vehicle traffic, improved aesthetics on a keynote piece of infrastructure in the downtown district, and narrower lanes promoting safer driving as traffic enters the pedestrian dense downtown district.

Retaining Walls
As part of the bridge replacement the existing retaining walls will likely need to be replaced. The new walls will need to be set back to provide room for the additional lanes on US-285. The consultant will look into various wall types, including set back walls, which would provide greater visibility for drivers and a more open-space feel through the intersection.

Drainage Facilities
The additional lanes on US-285 correspond to more surface run-off that will need to be collected and responsibly discharged into the nearby Little Dry Creek. The consultant will look to address the additional run-off with detention areas and rain gardens.

Multi-Modal
The multi-modal improvements made through this project will be subtle, yet impactful. The types of bicycle and pedestrian facilities will remain primarily the same throughout the project, however, key changes will be made to improve the pedestrian and bicycle experience. The consultant will look into the following features that impact the pedestrian and bicycle experience:

  • Provide wider sidewalks on the S Broadway bridge
  • Provide a buffer zone between pedestrian and vehicle traffic wherever possible
  • Improve wayfinding signage
  • Improve overall aesthetic of the interchange

Aesthetic Improvements
The consultant team includes landscape architects which will select decorative features such as light fixtures, concrete detailing, plantings, and more. They will also look into alternative materials such as brick or stone for sidewalks or retaining walls to further provide a sense of place.

Project Funding

This project has three sources of funding. Federal funds awarded via a grant through the DRCOG Transportation Improvement Program, State Funds, and City of Englewood funds. The funding breakdown is as follows:

$7.6M (Federal)+$0.8M (State)+$1.2M (City of Englewood)=$9.6M

  • 5.3.21 Project Update

    Share on Facebook Share on Twitter Share on Linkedin Email this link
    supporting image
    US-285 & S. Broadway Users,
    This is the fourth update in a series of monthly updates regarding the US-285 & S. Broadway Interchange Reconstruction Project.
    In the last month, the project team continued work towards environmental clearance, continued refining the interchange geometry, began developing aesthetic and landscaping concepts, began the structure type selection process, continued developing the subsurface utilities map, reviewed and refined the traffic study with CDOT staff, and began developing drainage and water quality concepts.
    Going forward, the team will prepare for and conduct the second public information meeting. The team will determine the preferred interchange alternative and preferred structure type. The team will begin preparing the preliminary design documents for review and approval by the City and CDOT.
    Lastly, this is a reminder that the second public information meeting will be hosted by the City on May 27th at 6pm. More information will be provided in future emails and on the project webpage at: https://www.engaged.englewoodco.gov/us-285-s-broadway...
    Best,
    Englewood Public Works


  • 4.27.21 Virtual Public Meeting #2 Announcement

    Share on Facebook Share on Twitter Share on Linkedin Email this link
    supporting image

    Hey Englewood,

    The City will be hosting the second Public Information Meeting for the US-285 & S Broadway Interchange. This meeting will update the public on the design progress and provide an opportunity for members of the community to ask questions of the project team. The meeting will be hosted virtually at 6pm on Thursday May 27th, 2021.

    More information on how to access the meeting will be sent out to the project email list and posted here shortly before the meeting.

    Best,

    Englewood Public Works



  • 4.1.21 Project Update

    Share on Facebook Share on Twitter Share on Linkedin Email this link
    supporting image

    US-285 & S. Broadway Users,

    This email is the third update in a series of monthly updates regarding the US-285 & S. Broadway Interchange Reconstruction Project.

    In the last month, the project team continued work on establishing existing conditions and obtaining environmental clearance while also beginning work on refining the interchange geometry. The geotechnical team completed analysis of the bridge soil borings and provided recommended foundation and retaining wall types to the structures team. The traffic team has submitted a draft traffic analysis report for review and approval by the City and CDOT. The environmental team has conducted their historic review and is working with CDOT and the State Historic Preservation Office to obtain clearance. The project team began developing the alternative screening matrix to evaluate which interchange configuration best satisfies the goals and constraints of the project. Mapping of the subsurface utilities in the project area continued.

    Going forward, the team plans to refine the geometric layouts of the interchange alternatives and select which alternative to proceed with in final design. The team will look to begin developing conceptual designs for the aesthetic details of the bridge and surrounding landscaping. The environmental team will gather field data for the noise analysis portion of the environmental review. The structures team will begin developing a structure selection report to determine the most suitable bridge and retaining wall types. As the recommended alternative becomes clear, the drainage team will begin developing drainage and water quality designs.

    Lastly, the City recently launched an online public engagement platform called Englewood Engaged which features the US-285 & S Broadway Project. We encourage anyone who’s interested in this project to register for Englewood Engaged and use the platform to stay connected and up to date on the project. The platform offers a central location for general project information, past project updates, related documents, and schedule information. Furthermore, the project team may solicit public input through online surveys conducted on the Englewood Engaged platform.

    Thank you for your continued interest in the US-285 & S Broadway Project.

    Best,
    Englewood Public Works


  • 3.2.21 - Project Update

    Share on Facebook Share on Twitter Share on Linkedin Email this link
    supporting image

    US-285 & S. Broadway Users,

    This email is the second in a series of monthly updates regarding the US-285 & S. Broadway Interchange Reconstruction Project.

    In the last month, the project team continued work on establishing existing conditions. The geotechnical team performed soil borings and began analyzing the site’s subsurface conditions, the environmental team began field investigations for historic resources, and the traffic team is nearly finished with analyzing the existing traffic conditions and crash data. The project team hosted the project’s first public information meeting on Thursday, February 18th via live stream on Microsoft Teams. The project team received great questions and comments during the meeting and this feedback will be closely considered as the design progresses. A link to a recording of the meeting can be found HERE.

    Going forward, surveying, topographic mapping, and determining existing right-of-way boundaries will be completed. The team will take a closer look at each of the proposed alternatives, comparing things like cost, safety, constructability, and how well the alternatives meet the goals of the project. The team will also be in the field marking and locating existing underground utilities. The next public information meeting is tentatively scheduled for May 2021.

    As always, please feel free to reach out to the City’s Project Manager, Jake Warren at jwarren@englewoodco.gov.

    Best,
    Englewood Public Works


  • 2.18.21 - Link to Recording of Meeting

    Share on Facebook Share on Twitter Share on Linkedin Email this link

    Public Information Meeting Recording – February 18th, 2021

    Hello Englewood,

    Thank you to those who participated in the Public Information Meeting. We apologize for the technical difficulties that occurred causing us to restart the stream and lose some of the participants. We understand the importance of sharing information about the project and soliciting feedback from the public. With that in mind, please use the link below to access a recording of the meeting and feel free to reach out to the City’s Project Manager, Jake Warren via email at jwarren@englewoodco.gov.

    CLICK HERE TO VIEW A RECORDING OF THE MEETING

    The next public meeting for the project is tentatively scheduled for May 2021. At this meeting, the team plans to share the findings of the Traffic Study, Environmental Investigations, and Alternatives Analysis while soliciting additional feedback on the preferred alternative.

    Keep a lookout for additional email updates as the project progresses!

    - Englewood Public Works Department

  • 2.17.21 - Virtual Public Information Link

    Share on Facebook Share on Twitter Share on Linkedin Email this link

    Hello Englewood,

    The City will be hosting a Virtual Public Information Meeting for the US-285 & S Broadway Project this Thursday (2/18/2021) at 6 p.m. The meeting will be held via Microsoft Teams Live Events, which can be accessed through your web browser. The meeting will consist of a presentation by the project team as well as an opportunity to ask questions and provide feedback. Please use the link below to access the meeting.

    LINK TO MEETING

    Review this PDF document with exhibits at your leisure. These exhibits are intended to help you understand specific characteristics of the project and to help you to prepare any questions in advance of the meeting.

    We look forward to sharing more about the project with you on Thursday!

    - Englewood Public Works Department

  • 2.3.21 - Project Update

    Share on Facebook Share on Twitter Share on Linkedin Email this link

    US-285 & S Broadway Users,

    This email is the first in a series of monthly updates regarding the US-285 & S Broadway Interchange Reconstruction Project.

    Work thus far has been focused on establishing existing conditions and developing models to inform decisions later in the design process. Since starting, the traffic team has coordinated with CDOT to establish traffic analysis procedures, gather traffic counts and crash data, and develop a model of the current traffic conditions. The survey team has completed a lidar survey and continues gathering supplementary survey data. The drainage and water quality team continues gathering data on existing drainage characteristics to assist the generation of a hydraulic model. The environmental team is working with CDOT and the State Historic Preservation Office to identify any historically significant properties or infrastructure near the interchange. Lastly, the utilities team is compiling as-builts and GIS information on the existing subsurface utilities.

    Also note, the City will be hosting a Virtual Public Meeting for the project on February 18th, at 6 P.M. More information, as well as a link/invitation, will be sent out a few days prior to the meeting.

  • 1.25.21 - Virtual Public Meeting #1 Announcement

    Share on Facebook Share on Twitter Share on Linkedin Email this link

    Hey Englewood,

    The City is planning for a major reconstruction of the US-285 & S Broadway Interchange. If you would like to learn more about the project and have the opportunity to ask questions, please join us for our first Public Information Meeting. The City of Englewood will host a Virtual Public Information Meeting for this project on Thursday, February 18, 2021, at 6:00 p.m. An invitation/ hyperlink will be published on the webpage and shared to the email list prior to the meeting.

    - Englewood Public Works Department

  • US-285 & S Broadway Project Newsfeed

    Share on Facebook Share on Twitter Share on Linkedin Email this link

    Keep up-to-date on news and updates that happen throughout the project.