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Spring Gulch #2 Greenway

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Spring Gulch #2 Greenway

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Northeast Longmont Capital Projects

spring gulch 2 greenway phase 2 3 trail drainage
Spring Gulch #2 Greenway underpass completed
Spring Gulch #2 Greenway underpass closeup

Status Update

November 7, 2019: Project work is currently focused east of County Line Road and north of 9th Avenue. Temporary crossings have been installed along Spring Gulch #2 to cross Lower Oligarchy ditch and the Union Reservoir Inlet ditch. Earthwork activities are currently taking place. This includes stripping and stockpiling the top layers of soil for future use and moving earth on site to prepare for trail construction and to achieve flood and drainage improvements.

Note that Phase 2 of the Spring Gulch #2 Greenway project was anticipated to be coordinated with County Line Road Improvements. Delays in the utility relocation process have postponed the start of the County Line Road construction.


Overview

The Spring Gulch #2 Drainage and Trail Improvement project addresses drainage, open space and transportation issues by designing and constructing a greenway trail connection and drainage improvements along the Spring Gulch #2 drainage in the northeast part of Longmont.

Once all three phases are complete, this greenway will provide an important north-south greenway connection running from Ute Creek Golf Course southeast to Union Reservoir, continuing on to Sandstone Ranch Nature Area and then connecting with the St. Vrain Greenway.

Project Phases

Spring Gulch #2 Greenway overview map

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 3rd 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 (underway)

Phase 2 includes construction of the greenway trail and drainage improvements from Stephen Day Park southeast to the Union Reservoir Nature Area at Weld County Road 26. Work includes installing 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 will continue for approximately 15 months.

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

Phase 3: Union Reservoir to Highway 119 (future)

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 for construction in 2021.

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

The rendering below shows Phase 2 and Phase 3 in closer detail. Click on the image to to view or download a larger PDF version of the rendering.

spring gulch 2 greenway phase 2 3 trail drainage

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 2 (from Stephen Day Park to Union Reservoir) construction began in September 2019 and is anticipated to last approximately 15 months.
  • Phase 3 (from Union Reservoir to SH-119) construction is anticipated for 2021

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

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

Project Cost

Cost for Phase 2 of the Spring Gulch #2 Greenway project is anticipated to be approximately $7.2 million, funded primarily through the City’s Open Space fund and a variety of other City funds.

Edge Contracting, Inc., based out of Golden, has been selected to complete Phase 2 of the project.

Contact

Project Manager Ellen Hilbig

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