Engineering History Tunnels

• Bridge and Tunnel Centers  - Provides an index of the pages included in the publication presented by the University of Michigan.
• Commissioner's Report - Sutro Tunnel  - Indexes the contents of the book that provides details on loan recommendation for the construction and other works.
• FranklinSites.com - Hoosac  - Relevant information about structures as well as adventures presented providing insights to the tourism in the region.
• Hoosac Tunnel Historical Notes  - Compilation of related reference materials about the construction and project documentation of the structure.
• Incidents Illustrations - Tunnel Construction  - Showcases a gallery of images depicting the possible accidents that can happen during the building of the underground structure.
• Letter from the Secretary of War - Sutro Tunnel  - Published reference on the commission's report on examination activity conducted in the structure.
• Mike's Railway History  - Reference for the construction of tunnels from previous years up until the year 1935. Features historical pictures and illustrations.
• Modern History Sourcebook - Francis Fox  - Exposition on the procedures and related information about the Swiss' construction of well-known tunnel during the year 1905.
• Nevada History - The Sutro Tunnel  - Exposition article detailing the politics and other issues behind the construction of the underground structure.
• Severn Railway Tunnel  - Description on the building of the structure as well as other details on the project. Also provides an illustration on its covered areas.
• St. Clair Tunnel Company  - Historical reference for the commercial firm's operations including details on its engineering projects.
• Standedge Tunnel  - British underground structure believed to be the highest, deepest and longest. Includes details on restoration activities.
• Superintendent's Report - Sutro Tunnel Company  - Content index of the publication that documents the construction operations of the commercial firm from a direct supervisor's records.
• Sutro Tunnel Company Collection  - Archive of documentations about the construction of the structure including record of financial operations, photographs and other materials.
• Tunnel of Eupalinos  - Narrative of the history of the tunnel's construction during the ancient times.
• Tunnel of Samos  - Points out the construction of the structure in the Greek island including details on its usage during ancient times.
• Tunnel Under the East River  - Report on the construction and project initiation presented by the company that operated it. Features facsimile of the original documents.
• Tunneling Under The Hudson River  - Copy of the published book authored by S.D.V. Burr covering topics on the achievement of constructing the structure.
• Tunnels - History and Heritage  - Outline of significant developments in constructing underground railways starting from 500 B.C. up to present times.