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

The new natural gas pipeline is now in-service. Over the next couple of weeks, we are removing sections of old pipeline and installing security fencing around our above-ground equipment. Traffic will not be impacted by our work.

Southern Larimer County

Currently we are connecting new pipeline between bored areas at the Handy Ditch and Larimer County Road 10E. We also are installing pipeline at the northern end of the pipeline route. We are using directional boring under Larimer County Road 21 to connect segments of our newly installed pipeline. This work is taking place outside of the roadway and should not impact traffic.

Next week, we expect that construction of the new natural gas pipeline will near completion. Then we will prepare to test the pipeline which includes an internal inspection and pressure testing before we put it into service.

The northbound lane of Larimer County Road 21 has been reopened. There are no road or lane closures planned for 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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