St. Louis-based Ameren Transmission Company of Illinois (ATXI) has received approval from the Missouri Public Service Commission (PSC) to build the $250 million Mark Twain Transmission Project.
Said project is a 100-mile, 345,000-volt electric transmission line and substation to be built in northeast Missouri, Kallanish Energy learns. The PSC granted a certificate of convenience and necessity (CCN) for the project, which will run from Palmyra to Kirksville in Missouri, and north to the Iowa border.
"Approval of the Mark Twain Transmission Project is a significant step toward strengthening our region's energy grid and delivering customer benefits," said Shawn E. Schukar, chairman and president of ATXI.
The route will run through Adair, Knox, Lewis, Marion and Schuyler counties in Missouri and will include construction of the Zachary Substation adjacent to the existing Adair Substation in Adair County.
Nearly 100% of the transmission line will be co-located on existing rights-of-way. The route will co-locate on existing right-of-way on Northeast Missouri Electric Power Cooperative's 161,000-volt line between Palmyra and Kirksville, and Ameren Missouri's 161,000-volt line from Kirksville to the Iowa border.
Construction of the project is expected to begin in April 2018 with a targeted in-service date of December 2019.