Strong wood. Intelligent designer. Capable workmen.
The result is a structure which functioned for well over a century. After a few decades, the makeup of the burden carried changed in character. And grew in both size and weight.
Located in Southern Indiana, this covered bridge served the local residents from 1863 until the final decade of the 20th century. According to the sign above the entrance, it is 150 feet long and cost a total of $5,700 to construct.
I walked it during my visit. Imagine crossing it on horseback, horse-drawn wagon, or bicycle.