West Main Natural Gas Pipeline Replacement Project

We are working to provide safe, reliable service



As part of our Pipeline Integrity Management Program, we will replace approximately 77 miles of 95 miles of high pressure transmission pipeline between Westminster, Colo., and the Wyoming border. The additional pipe will be abandoned or switched to distribution uses. This work will ensure safe, reliable service to our current and new customers along the Front Range.

Work in Larimer and Weld counties started in 2012 and is expected to continue through 2015. Work in Boulder County is expected to start in 2015 and continue through 2016.

This project is one of a package of pipeline integrity management programs and projects that are funded by the Pipeline System Integrity Adjustment (PSIA) rider that appears as a separate line item on Xcel Energy's natural gas customers' bills. We anticipate that in 2014, on a monthly bill, it will cost an average residential customer using 62 therms a month 36 cents, and the average small business customer using 270 therms a month $1.56.

Latest News

Fort Collins

Two valve sets along the natural gas pipeline construction route are being installed. Valves regulate and control the flow of natural gas through the pipeline. We are working at the valve set north of East Vine Drive and west of North Timberline Road. We do not expect any impacts to traffic in this area.

We also are working at the valve set on the south side of East Drake Road and west of South Timberline Road. The right hand, eastbound lane of East Drake Road is closed while we complete curb and sidewalk restoration.

Along East Thunderbird Drive, crews are working on connecting the new natural gas pipeline to pipeline installed in the 2013 phase of this project. Once connected, we will repave and open East Thunderbird Drive between South College Avenue and McClelland Drive.

We are repairing potholes along the following streets:

  • Harvard Street
  • Matthews Street
  • South Timberline Road
  • International Boulevard
  • Vine Drive

Repairs will cause temporary lane shifts and we will use mobile signs to direct traffic.

The right hand, southbound lane of South Timberline Road will be closed as we repair asphalt on the street south of Nancy Gray Avenue.

The right hand, eastbound lane of East Drake Road will be closed as we repair asphalt on the road, east of the rail road tracks.

Southern Larimer County

Currently new natural gas pipeline is being installed using directional boring at the following locations:

  • Handy Ditch west of Highway 287 at Larimer County Road 10E
  • Larimer County Road 4
  • Larimer County Road 6
  • Little Thompson River where it crosses Larimer County Road 21
  • Larimer County Road 19
  • West side of Highway 287 (south of Larimer County Road 10 and north of Larimer County Road 8)

New natural gas pipeline is being installed using open trenching near the Boulder County and Larimer County line heading just north of Larimer County Road 6, and from Larimer County Road 19 heading east and then north along the pipeline route.

We currently have traffic controls set up along Larimer County Road 21 that includes the closure of the northbound lane between Larimer County Road 4 to just north of Larimer County Road 6. Larimer County Road 21 is open to southbound traffic only in this area. No other road or lane closures are planned for the work currently in progress.

Have questions? Email us at This e-mail address is being protected from spambots. You need JavaScript enabled to view it or call our information line at 1-855-875-7633. Learn more about our 2014 construction.


Additional Resources

Construction Door Hanger
Xcel Energy’s Pipeline Integrity Management Programs

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