TOP: Allegheny County executive Dan Onorato, center, address a crowd at the opening of the Duquesne Tunnel and Trail as Duquesne Mayor Phil Krivacek, left, and County Councilman for Dist. 9, Bob Macey, right, stand by on Friday afternoon, October 2, 2009. The tunnel and trail will help connect Duquesne to the Great Allegheny Passage which connects the trails to Washington D.C. BOTTOM: A man walks through the tunnel.