Hiawatha-Coffey 161 kV Transmission Line

To improve reliability and meet the region’s growing energy demands, ITC Midwest built a new electric transmission line and substation in northern Linn County, Iowa. The Hiawatha-Coffey line connects ITC Midwest’s existing Hiawatha electric substation (located in the south part of Robins) to a new substation, called Coffey substation, located one-half mile west of Highway 13. The new line connects the two substations, which are approximately 10 miles apart, and carry electricity at 161 kV. Construction was completed in December 2016.

This line is part of a series of upgrades that ITC Midwest is implementing in Linn County to strengthen the region’s electric transmission system. The line provides a second electrical feed into the Hiawatha substation. This second feed is needed both to improve reliability and to serve the growing energy demand of the area’s residential, commercial and industrial customers. Northern Linn County has grown significantly in recent years. In the latest census results, Robins’ population grew by 74 percent in the past 10 years, and Center Point grew by 20 percent. Hiawatha and Central City grew by 8 and 9 percent, respectively. Overall, Linn County has added more than 19,500 residents since 2000 and more than 42,000 residents in the past 20 years.

MW_Hiawatha

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