Keywords: County Line Bridge west of Columbus Grove.jpg 98000513 41 16 1 N 91 29 6 5 W Southern end of the abandoned w County Line Bridge Columbus Grove Iowa County Line Bridge which formerly carried County Line Road Louisa County Iowa Louisa County to the right and Washington County Iowa Washington County to the left over Long Creek just west of Columbus Grove Iowa Columbus Grove Iowa United States The old right-of-way remains on the map but mosquitos not humans are its primary users while the bridge's wooden floor and railings are unable to hold even the weight of a human Built in 1893 it is listed on the National Register of Historic Places Own 2015-07-27 User Nyttend Nyttend No<nowiki></nowiki>ne Built in Iowa in 1893 Bridges in the United States completed in 1893 1890s bridges in Iowa Abandoned road bridges in the United States Bridges across county lines National Register of Historic Places in Louisa County Iowa National Register of Historic Places in Washington County Iowa Pony truss bridges in the United States Building-centered pictures by User Nyttend |