The Mark Twain Transmission Project is classified as a multi-value project (MVP) in the MISO 2011 expansion plan. The project will create a 345-kV path through central and eastern Missouri, beginning at the Iowa state line, continuing to the Zachary substation near West Adair, and continuing to the Maywood substation near Palmyra.
|Project Sponsor||Line Miles||Voltage (kV)||From State||To State||Year in Service|
|Ameren Transmission Company||96||345||IA||MO||2020|
|Estimated Costs ($M)||Voltage Type||Project Status||Project Group||Origin Point||Destination Point|
|250||Single||Operating||GRP||Iowa/Missouri State Line||Maywood|
|Interstate||Build Start||NERC||ISO/RTO||Country||Project Partners|