Modora Covered Bridge; Modora IN
Not abandoned, but old and epic. Built in 1875, and used for road traffic up until 1972. It is the longest historical covered bridge in the US at 471ft long. It has 3 perfectly symmetrical arches within supporting it. It has been restored with a new cedar roof and most of the siding, but the 3-arch support structure is all original.
This is another location I regret not taking more pictures of, especially underneath. I was once again rushed with the hope of making it to camp to set-up before dark...