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Environmental Review -- NEPA
Transmission Infrastructure Program

Estes-Flatiron Transmission Line Rebuild Project

Western Area Power Administration proposes to rebuild approximately 32 miles of double wood-pole structure 115-kilovolt transmission line that exists between Estes Park and Flatiron Reservoir in Larimer County, Colo. The proposal would remove 16 miles of transmission line, and modernize 16 miles to steel-pole double-circuit 115-kV transmission line. The reduction and modernizing of transmission lines will occur on Federal, state and private lands. The public parcels are administered by the Arapaho and Roosevelt National Forest, which is a cooperating agency in the project.

The proposed project would:

  • Rebuild aging and deteriorating transmission lines
  • Reduce the number of linear miles of transmission corridors and the associated environmental footprint
  • Ensure that the transmission lines comply with applicable codes and requirements
  • Reduce potential for disruption of customer service due to wildfire hazards
  • Improve access for maintenance and emergencies

Project updates
***Update November 2013: Draft Environmental Impact Statement expected to be released in early 2014***

After the Draft EIS is issued, the EIS Summary will be mailed to the project mailing list, and the entire Draft EIS will be posted at this website. If you would like to request a full electronic or paper copy of Draft EIS for your personal use, please complete and mail the return postcard by Dec. 6, 2013, indicating your preference on the format of the Draft EIS you desire (CD or hard copy), or email your preference to

Newsletter 3 (pdf), August 2013
Scoping reports available, press release Dec. 10, 2012
Citizens share ideas at workshops, blog post Oct. 10, 2012
Newsletter 2 (pdf), Sept. 13, 2012
Estes-Flatiron project scoping extended to Oct. 19, press release Sept. 13, 2012
Newsletter 1 (pdf), July 2012
Western extends scoping periond to Aug. 31, press release June 27, 2012
Notice of Intent to Conduct an EIS, April 17, 2012
Environmental Impact Statement process announced,  press release March 29, 2012

Project documents
Fact sheet (pdf), December 2012

Scoping materials and reports
EA scoping report (5.3 MB pdf), Dec. 10, 2012
EIS scoping report (2 MB pdf), Dec. 10, 2012
Designated Utility Corridor, April 23, 2012
Project map
Tech Spotlight: Paper about Underground transmission lines from Wisconsin Public Service Commission (pdf)  , May 2011

Mark Wieringa
Natural Resources
Western Area Power Administration
12155 W Alameda Pkwy
PO Box 281213
Lakewood, CO 80228