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Marshall - Hallsville Improvements

AEP Southwestern Electric Power Company (SWEPCO) is planning to rebuild approximately 11 miles of existing transmission line to upgrade aging infrastructure and to ensure continued reliable power. The line originates at a SWEPCO substation located near Highway 390 and Highway 80 west of Marshall and travels southwest to SWEPCO’s Hallsville substation located on North Oak Street. Upgrades include removing the existing wood poles and replacing them with steel monopoles and replacing the existing electrical wire with new.


The rebuild will involve removing approximately 11 miles of existing transmission poles. In most instances, the wood poles will be replaced with single-pole steel structures. In addition, the company will also replace the existing electrical wire with new conductor.


Southwest Power Pool, the Regional Transmission Organization, identified the need to upgrade aging infrastructure and to provide regional overload relief. SPP operates under federal mandate to ensure reliable supplies of power and adequate transmission infrastructure.


SWEPCO plans to start construction in September 2016. The company expects to complete construction in June 2017.


** Exact structure may vary from those shown.

* The accompanying map depicts the project area. It should be noted that the map contained on this site is for information purposes only. AEP reserves the right to alter, change, or amend the map at any time without notice and AEP provides no warranty about the accuracy of content. Keep this in mind when reviewing this map. However, AEP will make all attempts to keep this map as accurate as possible. If you have any questions about the accuracy of the current map please Contact Us.