Project Status: IN SERVICE
Strategic Purpose:
Asset Reliability & Diversification
Project Contact: Brandon Gustafson 
Related Resource(s): Map

Sister Bay Tap Line

Dairyland Power Cooperative is rebuilding 6 miles of 69,000-volt (69 kV) transmission line from Oelker Road to Dairyland's Sister Bay Distribution Substation located along Frogg Road in Sawyer County, Wis. The line is in an aged condition and is reaching the end of its asset life. The project will involve removing the existing line and building a new line within the existing corridor, but offset approximately 30 feet from the existing line. The offsetting will ensure the existing line remains operational during construction since the line cannot be taken out of service for long periods of time due to local electrical needs. Once rebuilt, this transmission line will have an improved line rating and lightning protection, which will improve system reliability in this service territory.   

Project At A Glance

County where facilities may be placed Sawyer County, Wis.
Distribution Cooperative Service Territories  

Jump River   

Line length 6 miles
Voltage 69 kV
Estimated project cost $1.8 million
End points Structure #6 (Oelker Road) to Dairyland's Sister Bay distribution substation

Schedule (all dates are anticipated and subject to change)

Right-of-way acquisition July 2019
Anticipated regulatory decision December 2020
Start of construction (right-of-way clearing) February 2021
Foundations, structures, line construction August 2021
In-service date January 2022


69 kV Transmission Line

69 kV