Rivnuts from Homestead, PA on 8/8/2023 6:37:58 PM:
I don't have current firsthand knowledge of the tunnel exit's status but the NPS C&O Canal website still reports it as being closed. That same web site has long stated that the tunnel exit should open by mid- to late-summer 2023. If true, it should be getting close to reopening.
I'll try to ask inbound riders toward Pittsburgh what they encountered if they passed through that area. I'll be riding through there in mid-September and am hoping that the tunnel exit is indeed open by then. I've made enough treks up and down the tunnel bypass trail.