National Tunnel Closure Crisis | Pittsburgh News

The National Tunnel, the longest and oldest on the Montour Trail, is shut down since November due to dangerous structural decay — walls bulging, ceiling cracked, and loose concrete posing safety risks. After 113 years, this 630-foot tunnel is now undergoing its biggest repair yet: a 295-foot steel liner installation, costing an estimated $3 million. The volunteer-run Montour Trail Council, which sees over 400,000 users annually, is racing to fund the project with state grants and donations — already securing a third of the needed cash — while keeping the tunnel closed until at least September 2027. Listen in comfort:Get a discount on a Soli Pillow: http://solipillow.com/discount/dnn. Advertise on DNN:[email protected] This is an automated, high-level news summary based on public reporting.Report issues to [email protected]. View sources & latest updates:https://sources.thednn.ai/8419b07b328fb27c