Medora Covered Bridge
The Smolen-Gulf Covered Bridge in Ashtabula County, Ohio, is the longest covered bridge in The U.S. It was opened in 2008 meeting modern standards and does not qualify as historic.
The Medora Covered Bridge (MCB) over the East Fork of the White River in Southern Indiana is the longest historic covered bridge in the U.S. based on the length of the span that is being crossed. The abutments were placed in a position to account for the rise and fall of the river. The true measure of the bridge is the distance between the abutments. The length of the housing depends upon the truss design and can be extended any length but that does not change the length of the void that is being crossed.