Disston Transmission Line Upgrade

Disston Transmission Line Upgrade
Current Project Activities
Crews are continuing construction of the underground transmission line on 40th St. N with most of the work during July occurring between 16th Ave. N and 26th Ave. Work on the remaining portions is expected to continue until mid-fall up to 38th Ave. N. There are construction-related activities in other parts of the project area along with micro-tunneling in the 4400 block of 54th Ave N. Micro tunneling is used in high-traffic areas where open-trench construction is not possible.
Following the completion of the underground work, restoration and clean-up activities are scheduled for late 2025 through mid-2026.
Street and lane closures are required for the safety of the public and crews during construction of the new line. As you drive in the area of the work zones, please observe all signage and crew instructions for traveling in areas of active construction.
- Proceed slowly and remain alert
- Watch for workers and equipment
- Travel in a cautious, calm and courteous manner
Project Overview
Pinellas County is experiencing rapid growth and an increasing need for energy. Duke Energy is investing to improve the energy grid in the county. The project will upgrade an existing 3.5-mile underground transmission line from our Disston Substation on 62nd Ave. N. to our 40th Street Substation on 13th Ave. S. The project is one of several projects in the county designed to help ensure continued reliability and meet the growing demand for electricity used by homes, businesses and the community.
Featured Links
View project construction video
View project overview video
View virtual information session
Available 24/7
Questions?
Call 877.480.2446
Email: Disston@duke-energy.com
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Learn about other projects in Pinellas County.
Site and Route Maps
At Duke Energy, we're committed to making continued improvements that expand the delivery of safe, reliable and cleaner energy to our customers in Pinellas County.
Timeline
Preconstruction work, including surveying, staking, soil boring and vegetation removal began
August 2022
Transmission line construction began
Early 2025
Project completion and restoration
Mid-2026
Watch Videos to Discover More
The Energy Superhighway
Learn about the importance of transmission infrastructure and how it plays a vital role in powering our communities.
View Project Overview Video
As Pinellas County's demand for energy continues to grow, Duke is upgrading the transmission grid. Learn more about this important project.
View Project Construction Video
Learn more about how Duke Energy will rebuild and upgrade the existing transmission line corridor.
Preconstruction Activities
Learn what occurs during the preconstruction phase of an electric transmission project.
Vegetation Management
See why it’s important to keep easement areas free and clear of any vegetation.
Community Benefits
Supports the rapid growth in Pinellas County
Modernizes and strengthens energy infrastructure
Supports development of renewable energy
Helps prevent outages and allow for more timely restoration