Construction Plan for the Revision 1.0 June 2016 Schedule TFS-4 Page 1 of 140 Construction Plan – Rev. 1.0 June 2016 This page intentionally left blank. ii Schedule TFS-4 Page 2 of 140 Construction Plan – Rev. 1.0 June 2016 Table of Contents Section Page List of Tables ........................................................................................................................................ v List of Figures ..................................................................................................................................... vii Acronyms and Abbreviations .......................................................................................................... ix 1.0 Project Overview .................................................................................................... 1 2.0 Project Description ................................................................................................ 4 2.1 Converter Stations and Other Terminal Facilities ......................................................... 4 2.1.1 Elements Common to the Converter Stations ................................................. 4 2.1.2 Kansas Converter Station and Other Terminal Facilities ............................... 5 2.1.3 Illinois Converter Station and Other Terminal Facilities ................................ 6 2.1.4 Missouri Converter Station and Other Terminal Facilities ............................ 6 2.2 HVDC Transmission Line .................................................................................................... 9 2.2.1 Right-of-Way .......................................................................................................... 11 2.2.2 Structures ............................................................................................................... 11 2.2.3 Conductor .............................................................................................................. 12 2.2.4 Metallic Return ...................................................................................................... 12 2.2.5 Optical Ground Wire and Static Wire ............................................................ 13 2.2.6 Communication Facilities .................................................................................... 13 2.2.7 Fiber Optic Regeneration Sites .......................................................................... 13 2.3 AC Collection System ....................................................................................................... 14 2.3.1 Right-of-Way .......................................................................................................... 16 2.3.2 Structures ............................................................................................................... 16 2.3.3 Conductor .............................................................................................................. 17 2.3.4 Optical Ground Wire and Static Wire ............................................................ 17 2.3.5 Communication Facilities .................................................................................... 17 2.3.6 Fiber Optic Regeneration Sites .......................................................................... 17 2.4 Access Roads ....................................................................................................................... 17 2.4.1 Existing Access Roads .......................................................................................... 18 2.4.2 New Access Roads ............................................................................................... 18 3.0 Typical Construction ............................................................................................ 23 3.1 HVDC Converter Station Construction ....................................................................... 23 3.2 HVDC and AC Transmission Line Construction ........................................................ 27 3.2.1 Temporary Construction Areas ........................................................................ 32 3.2.1.1 Tensioning or Pulling Sites ............................................................................. 35 3.2.1.2 Multi-use Construction Yards ....................................................................... 35 3.2.1.3 Fly Yards ............................................................................................................. 36 3.2.1.4 Wire Splicing Sites ........................................................................................... 36 3.2.1.5 Concrete Batch Plants .................................................................................... 36 iii Schedule TFS-4 Page 3 of 140 Construction Plan – Rev. 1.0 May 2016 Subject to Revision 3.2.2 Preparation of the Transmission Line Right-of-Way .................................... 37 3.2.3 Clearing and Grading Activities ......................................................................... 37 3.2.4 Foundation Excavation and Installation ............................................................ 38 3.2.5 Structure Assembly and Erection ...................................................................... 39 3.2.6 Conductor Stringing ............................................................................................. 39 3.2.7 Grounding ............................................................................................................... 40 3.2.8 Cleanup and Restoration .................................................................................... 40 3.3 Access Road Construction ............................................................................................... 40 3.3.1 Specialized Road Construction Techniques .................................................... 41 3.4 Construction of AC Interconnections and Related Upgrades ................................. 44 3.5 Hazardous Materials Handling and Disposal ................................................................ 45 3.6 Gravel Sources .................................................................................................................... 45 4.0 Operations and Maintenance .............................................................................. 46 4.1 Operational Characteristics ............................................................................................. 46 4.2 Permitted Uses within the Right-of-Way ...................................................................... 46 4.3 Transmission Line Maintenance Program ..................................................................... 47 4.4 Vegetation Management Program ................................................................................... 49 4.5 Right of Way Management Program .............................................................................. 51 4.6 Safety and Reliability .......................................................................................................... 51 5.0 Decommissioning ................................................................................................. 52 6.0 References ............................................................................................................. 53 Appendix A Figures ......................................................................................................................... 55 Appendix B Workforce and Crews ............................................................................................. 59 Appendices Appendix A Figures Appendix B Workforce and Crews iv Schedule TFS-4 Page 4 of 140 Construction Plan – Rev. 1.0 June 2016 List of Tables Table Page Table 1-1 Location of Proposed Route and Project Facilities by State and County ......................... 3 Table 2-1 Kansas Converter Station and Associated Facilities Dimensions and Land Requirements ....................................................................................................................................... 7 Table 2-2 Illinois and Indiana Converter Station and Associated Facilities Dimensions and Land Requirements ............................................................................................................................. 8 Table 2-3 Missouri Converter Station and Associated Facilities Dimensions and Land Requirements ....................................................................................................................................... 9 Table 2-4 HVDC Transmission Line Facility Dimensions and Land Requirements ........................ 10 Table 2-5 AC Collection System Western Kansas Region Transmission Lines Facility Dimensions and Land Requirements 1 ......................................................................................... 15 Table 2-6 Access Roads Facility Dimensions and Land Requirements .............................................. 19 Table 3-1 Typical HVDC Converter Station, Estimated Equipment .................................................. 25 Table 3-2 Typical HVDC Segment Construction Equipment .............................................................. 28 Table 3-3 Temporary Construction Areas .............................................................................................. 32 v Schedule TFS-4 Page 5 of 140 Construction Plan – Rev. 1.0 May 2016 Subject to Revision This page intentionally left blank. vi Schedule TFS-4 Page 6 of 140 Construction Plan – Rev. 1.0 June 2016 List of Figures Appendix A, “Figures,” contains all