 the cincinnati subway is a set of incomplete, derelict tunnels and stations for a rapid transit system beneath the streets of cincinnati, ohio. it is recognized as the largest abandoned subway tunnel in the united states. it was built in the early twentieth century as an upgrade to the cincinnati streetcar system, but was abandoned due to escalating costs and collapse of funding amidst political bickering during the 1920s.krewedl, derek. (october 22, 2002) "new life for old subway?", downtowner. pp.1,14. today, many cincinnatians are unaware of the aged tunnels underneath them. ==history== rapid transit was seen as the solution for downtown congestion during the first quarter of the 20th century. six million dollars was allocated for the project, but construction was delayed due to world war i. unexpected post-war inflation doubled the cost of construction, so the project could not be finished at the original estimated price. despite various attempts to use the subway tunnels for mass transit, thus far all attempts have been unsuccessful. political squabbling, the great depression, world war ii, and the rise in popularity of the automobile have all contributed to the current failure of the subway.  ===the idea===  from 1825 until 1920 the miami and erie canal divided cincinnati's residential neighborhood of over-the-rhine from the business district of downtown.singer 2003, p.17.  the canal was used to transport goods and people from the great lakes to the ohio river and subsequently the mississippi river via cincinnati, until th
Abandoned_rapid_transit_stations Cancelled_subways Transportation_in_Cincinnati,_Ohio Underground_rapid_transit_in_the_United_States