Status Update

Updated Sept. 3, 2024

Phase 3, connecting the greenway trail segments between Union Reservoir and State Highway CO 119, is now complete. This section included stabilization of a stream bank that was severely eroded to improve drainage as well as the installation of a pedestrian underpass under the Great Western Railroad.

Project Phases

The Spring Gulch #2 Greenway project has been divided into three phases.

Click on the “Overview Spring Gulch #2” image to view or download a larger PDF version of the overview map.

Phase 1: Highway 119 Underpass/Culvert (complete)

Phase 1 of the project, constructed in 2013, is complete. This phase included construction of a sidewalk along the north side of State Highway 119 (SH-119) extending from its intersection with Third Avenue east to Spring Gulch #2. Box culverts for the Spring Gulch #2 drainage and a pedestrian underpass were also constructed under SH-119. This underpass and culvert system improved drainage to safely pass 100-year storm flows under SH-119 and create a grade-separated pedestrian crossing.

Phase 2: Stephen Day Park to Union Reservoir (complete)

Phase 2 of this project, construction of the greenway trail and drainage improvements from Stephen Day Park southeast to the Union Reservoir Nature Area at Weld County Road 26, is now complete. Work included the installation of a 10-foot wide concrete greenway with a 3-foot wide crusher fine trail, a box culvert system consisting of a pedestrian underpass and two drainage culverts running under County Line Road, and relocating the Lower Oligarchy Ditch.

This phase of the project began in September 2019 and was completed in the summer of 2021 by Edge Contracting, Inc. out of Golden, Colorado.

View a PDF map showing a closer view of the Phase 2 work area

Phase 3: Union Reservoir to Highway 119 (complete)

Phase 3 will connect the greenway trail segments of Phase 1 and Phase 2 between Union Reservoir and SH-119. It will also include drainage improvements through this area and installation of a pedestrian underpass under the Great Western Railroad.

Phase 3 is currently anticipated to start construction in late 2023, with an opening day around mid-2024.

View a PDF map showing a closer view of the Phase 3 work area

Schedule

The Spring Gulch #2 Greenway project was put on hold after the 2013 flood, and design changes were made to help better protect people, property and infrastructure from increased flood risk.

• Phase 1: (from the north side of State Highway 119 (SH-119) extending from its intersection with Third Avenue east to Spring Gulch #2) design began in 2012 and construction was completed in 2013
• Phase 2 (from Stephen Day Park to Union Reservoir) construction began in September 2019 and is now complete
• Phase 3 (from Union Reservoir to SH-119) construction is anticipated to start in late 2023.

An open house to share design plans and answer questions about Spring Gulch #2 Greenway Phase 2 was held on March 20, 2020. Nearby residents received invitations to the open house. A second public meeting to share information about the project was held on April 25, 2020.

View a list of questions residents asked at the April 25, 2020 meeting, along with staff responses

Project Cost

• Phase 2: Cost for Phase 2 of the Spring Gulch #2 Greenway project is approximately $7.2 million.
• Phase 3: Cost for Phase 3 of the Spring Gulch #2 Greenway project is anticipated to be approximately $4.5 million.

Contact

Project Manager Alden Jenkins at alden.jenkins@longmontcolorado.gov.