Picked up from www.CoolCleveland.com [1] :
Bridge & Subway Tour
Rare, twice-a-year tour of the lower level of the Veterans Memorial (Detroit-Superior) Bridge & Subway, conducted by the Cuyahoga County Engineer, on Sat 5/27 from 9AM - 3PM. No reservation necessary, just show up on the NE corner of the West end of the bridge. Last year, 2000 people toured. Next tour 9/2/06. 348-3900/3901 http://www.cuyctyengineers.org/subway_tour.htm [2]Links:
[1] http://www.CoolCleveland.com
[2] http://r.pm0.net/s/c?3gv.gcjy.60.cigy.2dq