Project at a glance

Project area: Marion County, city of Ocala, Levy County, town of Williston
Project plan: Rebuild existing transmission line 
Line length: 14.1 miles
End points: Martin West Substation and Williston North Substation
Line voltage: 230 kilovolts
Pole: Replace 60 H-frame structures with single-pole steel approximately 160 feet
Preconstruction: Activities start early 2022   
Construction: Starts late 2022
Project completion and restoration: Spring 2024

Project area

Route Map Martin West Segment

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This project is one of three projects to help strengthen the reliability of the transmission grid in the tri-county areas of Marion, Levy and Alachua. The existing H-frame structures will be replaced with steel structures that will require less maintenance, have a smaller footprint, and be more resilient to weather conditions.

The work will take place within existing Duke Energy easements.

Illustration showing new monopole structure that will replace H-frame structure.

The existing H-frame structures will be replaced with taller single-pole structures.
The voltage will remain the same.


  • Preconstruction work, including surveying, soil boring and staking

    Late 2021 through mid-2022

  • Vegetation removal

    Summer 2022

  • Transmission line construction

    Late 2022

  • Project completion

    Early 2024

*Timeline is subject to change based on permitting timelines, additional scope development, weather conditions or other uncontrollable events. Factors such as weather, availability of crews and equipment or unforeseen circumstances may impact the schedule. Many of the activities associated with the design, engineering, and construction of the transmission lines may overlap and do not necessarily happen in a sequential manner. These activities will occur in different locations at different times based on the size of the project and need to optimize the use of resources.

Helpful Videos to Learn More

Learn more about the importance of transmission and how it plays a vital role in powering our communities.

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Frequently Asked Questions

  • The existing 14.1-mile line will be rebuilt within the Duke Energy easement between the Martin West Substation at 10460 Gainesville Road in Ocala to the Williston North Substation at 4551 NE 167th Court in Williston.

  • As Florida’s population grows, so do its energy needs. The transmission system in Florida is used by all utilities in the state and their customers. The rebuilt transmission line will help strengthen reliability to meet the growing demand and will help enhance the ability of Duke Energy and other utilities to provide reliable energy to homes, community facilities and businesses in the region.

  • Transmission lines are power lines that carry electricity from power plants to substations, which then deliver the energy to our communities and to other utilities within the state.

  • Current construction plans call for the rebuilt transmission line to be suspended on steel single-pole structures. The old H-frame structures will be removed. The average height of the new steel or concrete transmission poles is 160 feet, about 30 feet higher than the current structures.

  • Trees are part of the natural beauty of Florida, but trees and other vegetation are also one of the leading causes of power outages for utilities. Since the existing line is already in a Duke Energy easement, the corridor has been maintained to keep it free of incompatible vegetation. Our team will evaluate what vegetation clearing needs to be done to accommodate access and equipment for construction and to continue to operate the line reliably. We plan for the safe and unobstructed access to the easement for our construction crews, and for any future maintenance on the transmission line. Duke Energy representatives will be in direct contact with property owners in advance of vegetation removal.

  • Construction crews generally work weekdays during daylight hours and carry identification showing their affiliation with Duke Energy. The crews use a variety of vehicles and equipment to build concrete foundation and to place and erect poles and string wires. There may be temporary traffic lane/trail closings along the route. Neighbors can expect large trucks with drilling equipment or a concrete mixer in the right of way. The concrete is poured at the bottom of a deep hole to form the foundation. The structure materials arrive in sections and may be assembled on the ground before being installed. The final construction activity is wire stringing. Trucks carrying large reels of conductor are typically used, with a winch to pull the conductor through. Linemen attach the wires to the structures. Following construction, the area will be restored as closely as possible to its original condition.

  • Preliminary preparations for the project began in 2021 with soil samplings in the easement. Vegetation work is scheduled to begin in summer 2022 with the construction expected to start in late 2022 and conclude in early 2024.

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