Sutro Tunnel
- Facsimile of the 1872 report of the commissioners and evidence taken by the committee on mines and mining of the House of representatives.
- http://quod.lib.umich.edu/cgi/t/text/text-idx?c=moa;idno=AEL2141

Report of the Superintendent of the Sutro Tunnel Company
- Full text of this document providing detailed reports from the heads of department for the year ending 1873.
- http://quod.lib.umich.edu/cgi/t/text/text-idx?c=moa;idno=AEL2139

Bridge and Tunnel Centres
- Full text of this 1875 book by John B. McMaster.
- http://quod.lib.umich.edu/cgi/t/text/text-idx?c=moa;idno=AJS2234

The Sutro Tunnel
- Description of the tunnel on Nevada's Comstock Lode, taken from Sam P. Davis' 1912 History of Nevada.
- http://www.nevadaobserver.com/The%20Sutro%20Tunnel%20(1912).htm

Sutro Tunnel Company Collection
- A guide to the papers collection held by the University of Nevada.
- http://www.library.unr.edu/specoll/mss/nc7.html

Hooac Tunnel Collection
- Details of the documents collection held by the North Adams Public Library. Includes historical notes on the construction.
- http://www.naplibrary.com/HTHistoricNotes.html

The Hoosac Tunnel
- Comprehensive range of commentary, data, history and construction images.
- http://hoosac.franklinsites.com/index.php

Standedge Tunnel
- Construction history, restoration details and photo gallery of the longest, highest and deepest canal tunnel in Britain. First opened in 1811.
- http://www.penninewaterways.co.uk/huddersfield/standedge1.htm

The Making of the Channel Tunnel - A Modern Day Wonder
- Text of the 1995 Gould Distinguished Lecture by John Neerhout, Jr. Describes the gestation period, ideas, plans, and efforts which spanned over two centuries.
- http://www.lib.utah.edu/gould/lecture95.html

Ancient Tunnels: From Roman Outlets Back to the Early Greek Civilization
- Paper by Vittorio Castellani and Walter Dragoni which reviews more than twenty years of investigations devoted to hydraulic tunnels in ancient Mediterranean civilisations.
- http://www-b.unipg.it/denz/doc_drago/1997_svizzera.pdf

The Thames Tunnel
- Short illustrated history of the first tunnel to be built under a navigable river and the first to use a tunnel shield.
- http://www.brunelenginehouse.org.uk/tunnel.asp

How the Swiss Built the Greatest Tunnel in the World
- Short contemporary commentary by Francis Fox about the construction of the Simplon tunnel through the Alps completed in 1905.
- http://www.fordham.edu/halsall/mod/1905simplon.html

The Mount Cenis Railway and Tunnel
- Facsimile of illustrated article from Harpers magazine dated July 1871. Describes the operations of the first machine drill for tunnelling construction.
- http://www.catskillarchive.com/rrextra/mrcenis.Html

Tunnelling Against Time
- Illustrated essay on the construction history of the Cascade mountains tunnel completed in 1929.
- http://mikes.railhistory.railfan.net/r004.html

The Union Canal Tunnel
- Completed in 1827, the oldest existing transportation tunnel in the United States. Brief history from the Lebanon County Historical Society.
- http://www.lebanonhistory.org/text/tunnel.html

Hoosac Tunnel
- Completed in 1875, the first tunnel in the US to use compressed air for drilling. Includes specifications, contemporary articles, and photographs.
- http://www.catskillarchive.com/rrextra/htpage.Html

St. Clair Tunnel Company
- Opened in 1891, running under the St. Clair River, which joins Lake Huron to Lake St. Clair. Includes short history, photographs, and references.
- http://www.trainweb.org/elso/stclair.htm

Railway Tunnels Under the Hudson River
- Illustrated article from the Scientific American published in 1891. Discusses the resumption of construction works.
- http://www.catskillarchive.com/rrextra/tuhud1.Html

The Tunnel of Samos
- Illustrated scholarly essay which discusses the theories about the methods of construction of this ancient water tunnel built in the sixth century B.C.. By Tom M. Apostol.
- http://pr.caltech.edu/periodicals/EandS/articles/LXVII1/samos.html

Chicago Tunnel Company
- Illustrated history of the freight tunnels below the streets of downtown Chicago. Opened in 1906.
- http://users.ameritech.net/chicagotunnel/tunnel1.html

The Severn Railway Tunnel
- Extensive ten chapter history of the construction. Topics include highs and lows, tunnelling methods, and a collapse in the tunnel. Opened in 1886.
- http://www.greatwestern.org.uk/severn1.htm

The Tunnel of Eupalinos
- Extensive illustrated article by Dan Hughes, with appendix by Hans J. Keller. Based on visits to the tunnel in 2000 and 2001.
- http://homepages.cwi.nl/~aeb/math/samos/

Tunnels Timeline
- Details significant construction events from 500 BC to 2000 AD. Provided bt the American Society of Civil Engineers.
- http://www.asce.org/history/tl_tunnels.html

Tunneling Under the Hudson River
- Facsimile of the 1885 illustrated book by S. D. V. Burr.
- http://www.tmk.com/books/tunnel/index.shtml

A General Report Upon the Initiation and Construction of the Tunnel Under the East River, New York
- Facsimile of the 1894 book by Charles M. Jacobs.
- http://www.tmk.com/books/eastriver/index.shtml

The Astoria Tunnel Under the East River for Gas Distribution in New York City
- Text of this article by John Vipond Davies printed in the 1916 volume of the American Society of Civil Engineers Transactions.
- http://www.tmk.com/books/asce-astoria/

Illustrations of Incidents in Tunnel Construction
- Facsimile of the illustrated 1909 souvenir program to commemorate the fifth anniversary of the joining of New York with New Jersey via the Hudson Tubes.
- http://www.tmk.com/books/hmdinner/