[PDF] Partnerships in Sustainability: Rail Tunnel Adaptation for Transit, Pedestrians and Bicyclists Published on 10/01/08 by County of Marin Department of Public Works Collection: Trail Projects Tags: Construction, Design, Tunnels View Details →
[PDF] Rail-Trail Maintenance & Operation: Ensuring the Future of Your Trail—A Survey of 100 Rail-Trails Published on 07/01/05 by Rails-to-Trails Conservancy Collection: Trail Management Tags: Liability/Insurance, Maintenance, Surface, Bridges, Tunnels View Details →
[PDF] Tunnels on Trails: A Study of 78 Tunnels on 36 Trails in the United States Published on 04/01/01 by Rails-to-Trails Conservancy Collection: Trail Planning Tags: Tunnels, Design, Maintenance View Details →
