Underground insulated piping systems : excluding walk-in tunnels.

"Prepared under Contract No. CST 263 between the National Academy of Sciences and the National Bureau of Standards."

Toll facilities in the United States: bridges, roads, tunnels, ferries.

Mode of access: Internet.

Behavior of the Bay Area Rapid Transit tunnels through the Hayward Fault : final report /

"Performing organization: San Francisco Bay Area Rapid Transit District"--Technical report documentation page.

Toll facilities in the United States : bridges, roads, tunnels, ferries /

"February 1995."

Aerodynamics and air quality management of highway tunnels : R. N. Schlaug, T. J. Carlin.

Mode of access: Internet.

Analysis of ground-liner interaction for tunnels /

Mode of access: Internet.

Les tunnels des Alpes. Mont Cenis--Saint Gothard--Simplon--Loetschbert--Jura--Faucille--Mont Blanc.

Mode of access: Internet.

Management of air quality in and near highway tunnels /

Mode of access: Internet.

Performance improvement of arc heaters for aerodynamic wind tunnels

Mode of access: Internet.

Characteristics of six research wind tunnels of the Ames Aeronautical Laboratory.

Mode of access: Internet.

Captain Jackman; or, A tale of two tunnels.

Mode of access: Internet.

TUNNELS OR BRIDGES?

Mode of access: Internet.

Tunneling, explosive compounds, and rock drills. Also, descriptions of the European and American systems, with tables giving the dimensions, cost, and leading data relating to the construction of about two thousand tunnels, compiled from notes furnished by engineers and railroad companies in North and South America, Europe, India, Australia and New Zealand, comprising a review of tunneling from the reign of Rameses II to the present time.

Mode of access: Internet.

Toll facilities in the United States : bridges, roads, tunnels, ferries.

Mode of access: Internet.

Schluss-Bericht an das eidgenössishche Postund Eisenbahndepartment über den Bau des Lötschbergtunnels der Berner Alpenbahn, 1906-1913.

At head of title: Bern-Lötschberg-Simplon.