Staunton-Valley

Most of the existing structures and components along this 21.5-mile line corridor have been in service for nearly five decades. To maintain reliability for our customers and due to the age of some components, the line is being replaced. The line was primarily built on wooden H-frame structures. In some locations, it also used brown, weathering steel lattice structures and monopole structures.

We are replacing the double circuit weathering-steel lattice structures primarily with brown, weathering-steel monopoles. The single circuit wooden H-frame structures are being replaced with brown, weathering steel H-frame structures with galvanized cross arms and x-braces.

Benefits

• Upgrades the line to current 230 kV standards
• Utilizes the existing right of way

Timeline

• August 2022 – SCC issued Final Order approving project
• Summer 2023 –Phase I (Valley Substation-West Staunton Substation) construction began
• Early 2024 – Phase II (West Staunton Substation-Staunton Substation) construction began
• Summer 2024 - Phase I construction complete (expected)
• Late 2025 – Project complete (expected)
  
   

Existing Transmission Corridor Conditions:

• Project area is 21.5 miles long
• Right of way is primarily 120 feet wide with some 100-foot sections
• Double circuit monopoles and lattice structures
• Single circuit wood H-frames

• Previous average structure height: 73.3'
• Previous average single-circuit structure height: 64.7'
• Previous average double-circuit structure height: 122.4'

Proposed Transmission Corridor Conditions

• Utilize existing right of way corridor
• Brown, weathering-steel H-frames with galvanized cross arms and x-braces
• Brown, weathering-steel monopoles, and 3-pole structures in some areas

• New average structure height: 80.1'
• New average single-circuit structure height: 72'
• New average double-circuit structure height: 126.7'