U.S. Department of Energy
02/04/2026 | News release | Distributed by Public on 02/04/2026 15:58
CX-270897: American Electric Power's (AEP) Duncan to Rush Springs Tap Transmission Line Rebuild Project
CX-270897: American Electric Power's (AEP) Duncan to Rush Springs Tap Transmission Line Rebuild Project
The Project will rebuild approximately 24.7 miles of existing linear transmission line infrastructure generally within its existing 100-foot-wide right-of-way (ROW) between the existing Duncan Substation and Cox City Road, in Grady and Stephens counties, Oklahoma.
Office of NEPA Policy and Compliance
February 4, 2026
min minute read time
The Project will rebuild approximately 24.7 miles of existing linear transmission line infrastructure generally within its existing 100-foot-wide right-of-way (ROW) between the existing Duncan Substation and Cox City Road, in Grady and Stephens counties, Oklahoma.
Proposed construction activities include removing 216 existing 70-foot-tall wooden H-frame (two poles with cross bracing) transmission line structures and replacing them with 226 new single steel poles and upgrading the wires to improve electrical reliability for area customers. The new steel poles are approximately 85 feet tall. The existing transmission line structures support three (3) conductors, two (2) shield wires, and one (1) all-dielectric self-supporting cable (ADDS), while the new steel poles will support three (3) conductors, one (1) shield wire, and one (1) ADDS (one less cable/wire overall compared to existing number of cables/wires).
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