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2018

October
   Complete Montrose-Nucla segment construction
 

2017

September
   Begin Montrose-Nucla segment construction
 

August
   Complete Montrose-Nucla right-of-way improvements
 

May 31
   End Phase II construction of the 345kV Montrose Substation
 

April
   Start Montrose-Nucla right-of-way improvements
 

March 21
   Begin Phase II construction of the 345kV Montrose Substation

 

March 20
   BLM and USFS issues Decision Documents
 

February
   BLM FONSI received; 30 day appeal period ended March 23, 2017
 

February
   Forest Service Finding Of No Significant Impact (FONSI) and Decision Notice received and considered final
 

January
   Dolores and San Miguel County land use approvals
 

2016

December
   End County Permitting (Montrose, Dolores and San Miguel Counties)
   End BLM and USFS issues Decision Documents
 

November
   Begin BLM and USFS Issues Decision Documents
 

October
   End Phase I construction of the 345kV Montrose Substation
 

August
   Final EA Released
 

June
   Begin Phase I construction of the 345kV Montrose Substation
 

May
   Begin County Permitting (Montrose, Dolores and San Miguel Counties)

 

2015

December
   BLM begins analysis of public comments
   Public comment period closed
 

November 
   BLM Public Workshop
   5 to 7 p.m.
   Dove Creek High School, 525 N. Main St. Dove Creek, CO 81324
 

   Draft EA published by BLM
   Public comment period began
 

2013

July
    CPUC approved MNC Upgrade Transmission Project

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Tri-State Generation and Transmission Association
Office: 303-452-6111
1100 West 116th Avenue
Westminster, CO 80234

Mailing address:
PO Box 33695
Denver, CO 80233-0695

©2025 Tri-State Generation and Transmission Association, Inc. Power supplier to the rural west.

  • About Us
    • Annual Report
  • Powering the Future
    • Our Energy Mix
  • Electrify and Save®
    • On-Bill Repayment
    • Programs
    • Quality Install
  • Media
    • Resources
    • Blog
    • Features
    • News
    • Newsletter
    • Podcast
  • Cooperative Benefits
  • Operations
  • Search