- References
The World Guide to Covered Bridges is a covered bridge numbering system invented by John Diehl, the chairman of the Ohio Covered Bridge Committee. The committee first used the numbering system in 1953 to publish a list of covered bridges in Ohio.[1] References 1. ^{{cite web | author = Dr. James E. Reinoehl | title = The Covered Bridge Numbering System | work = Ohio Covered Bridge Homepage | publisher = | date = 1998-05-19 | url = http://members.aol.com/jreinhl/maps/numbers.htm | accessdate = 2009-09-15 | archiveurl = https://web.archive.org/web/20050407090444/http://members.aol.com/jreinhl/maps/numbers.htm | archivedate = 2005-04-07 }}
{{Ohio-bridge-struct-stub}} 2 : Covered bridges|1953 introductions |