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Jun 01

[ARCHIVED] JC-73 Roadway Improvements (Buffalo Park Road to Plettner Lane) Evergreen, CO 80439

The original item was published from July 9, 2020 3:01 PM to June 2, 2023 9:26 AM

Project Overview:

Jefferson County is planning improvements to JC-73 between Buffalo Park Road and Plettner Lane beginning mid-2023. Benefits to the public will include:

  • Safety enhancements to the intersection of Buffalo Park Road and JC-73;
  • Left Turn Lanes;
  • A Concrete Pedestrian Trail;
  • Drainage and Flood Controls; and
  • Bridge Replacements at Cub Creek.

The project will be funded in part with a grant of $8.75 million from the Federal Highway Administration (FHWA). Jefferson County's share is estimated to be $2.19 million.

Link to larger cross section of JC-73 looking north towards downtown Evergreen.See roadway cross section.Link to larger image of JC-73 Layout Exhibit.See JC-73 layout exhibit.

View this project on the Jeffco Roadway Project dashboard (an interactive mapping application). Under the Capital Improvement Project list at the right-hand side of the dashboard, scroll to and click "CR73 Roadway Improvements". 

Project Schedule:

Preliminary design and public outreach efforts were conducted throughout 2021. Final design is nearly complete and currently undergoing state and federal agency review. A public meeting was held on April 18, 2023 at Evergreen High School. A virtual option is posted below.

Learn more about the final design and construction phasing for JC-73 roadway improvements.

Link to character and environment map.See character and environment.

Link to construction phasing map.See construction phasing.

Link to project boundary map.See project boundary.

Link to key project details.See key project details.

After receiving final clearances, the project will be advertised for construction bids. Construction is expected to begin in the fall of 2023 and continue into 2025. Construction is planned to progress from Plettner Lane to Buffalo Park Road in several phases. Traffic impacts should be expected throughout the construction project as JC-73 is reduced to a single lane, on and off, during daytime and evening work activities. Two lanes of traffic will be maintained during the peak hours of 5:30 a.m. to 8:30 a.m. and 3:30 p.m. to 5:30 p.m..

Utility Relocations and Site Preparation:

Xcel Energy crews will be working to relocate an electrical line. This work will occur north of the Buffalo Park Road intersection and end north of the Assist-2-Sell realty office (south of Little Cub Creek Road). This work is anticipated to start mid-June and last four weeks. The roadway will be open to two-way traffic except for closure of the northbound left turn lane from Buffalo Park Road between 8:30 a.m. and 4:00 p.m.

Stakeholder Engagement Process:

Public involvement and feedback provided in 2021 were incorporated in the final design. Jefferson County will continue to develop a public information plan to implement during construction. Efforts are currently underway to identify and incorporate the needs of Evergreen Schools, Evergreen Fire Department, Jefferson County Sheriff's Office, Evergreen Parks and Recreation, the Evergreen Chamber of Commerce, and area businesses. The information plan will focus on ways to: (1) Reduce traffic congestion, (2) Communicate planned work events, and (3) accommodate fire and emergency response. This plan will be implemented and refined throughout construction.

Evergreen Lake North Trail Project:

The county is coordinating with Evergreen Metro District and the Colorado Department of Transportation (CDOT) to mitigate the traffic impacts from construction of Evergreen Lake North Trail Project on JC-73 and CO-74. See Evergreen Park and Recreation District's project webpage, call the project information hotline at 720-356-4440, or email the project team to learn more.

For Questions:

Your feedback is valuable in the decision-making process. For questions, please email Transportation and Engineering.

Thank you for your interest in this project!