West Main Natural Gas Pipeline Replacement Project

We are working to provide safe, reliable service



As part of our Pipeline Integrity Management Program, we are replacing 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 was completed in 2014. 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 2015, on a monthly bill, it will cost an average residential customer using 65 therms a month $1.88, and the average small business customer using 278 therms a month $8.04.

Latest News

Boulder County


Louisville Work Zone

Our construction along 96th Street/State Highway 42 (95th Street) near Louisville and Lafayette started in March. Our crews continue to install pipeline using directional drilling at the following locations along 96th Street/State Highway 42 (95th Street): :

  • Baseline Road
  • Paschal Drive
  • South Boulder Road
  • Burlington and Santa Fe Railroad

Crews are now connecting newly installed areas of pipeline by open trenching from Paschal Drive to Baseline Road.

Please note that after these areas are connected, a separate contractor will start an unrelated intersection improvement project at Baseline Road and 96th Street/State Highway 42 (95th Street).

We are also installing new pipeline by open trenching at the southern end of the route, just north of Dillon Road. Starting next week, we’ll begin installing new pipeline by directional drilling at South Street and 96th Street/State Highway 42 (95th Street).

We will have traffic controls set up in an approximately one-mile stretch along 96th Street/State Highway 42 (95th Street) from Empire Drive north to Paschal Drive. In addition, the southbound right turn lane of 95th Street at Baseline Road will be closed to traffic. See a map of our work zones. See a map of our work zones. See our Traffic Control details.

Work for this segment is on schedule and is expected to be completed in September.

Northern Boulder County Construction

Construction on the remainder of our Boulder County project is expected to begin approximately June 1, 2015. See the map of our upcoming construction in Boulder County.


Additional Resources

Construction Door Hanger

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