Browse Items (1 total) Tags: Substation Construction Browse All Browse by Tag Search Items Sort by: Title Creator Date Added Photos Illinois Power Co. Photographs of Illinois Power Substation and Building. Tags: Decatur IL. Noel C. Dick, E. Main St., Illinois Power Co., Office Building, Power Company, Substation Construction Featured Item Photographs of 527 W. Prairie Ave. Photographs of 527 W. Prairie Ave. which was once the residence of S.T. Nesbit.