THI and E Interurban Depot Substation

THI and E Interurban Depot-Substation, also known as Plainfield Interurban Depot, is a historic interurban train station located at Plainfield, Hendricks County, Indiana. It was built in 1907 by the Terre Haute, Indianapolis and Eastern Traction Company. The building consists of a small brick passenger / cargo depot with a large, two-story repair substation at the rear. It has Italianate style design elements in the round arched window openings. The passenger depot section is topped by a series of red clay tile hipped roofs. Interurban transportation for Plainfield ceased on January 10, 1940. The building was subsequently used as an American Legion post.

It was added to the National Register of Historic Places in 2002.