Tunnels
Subtitle: machine excavation--rate of progress--machine data
By: by R.S. Sinha.
Contributors: Engineering and Research Center (U.S.). Water Conveyance Branch.
Series: REC-ERC -- 86-8.; REC-ERC (Series) -- 86-8.
Publisher: Water Conveyance Branch, Division of Dam and Waterway Design, Engineering and Research Center, U.S. Dept. of the Interior, Bureau of Reclamation; Available from the National Technical Information Service, Operations Division
Published: 1986
Place of publication: Denver, Colo; Springfield, Va
Language: eng
Number of pages: 37
Subjects: Boring machinery.; Excavating machinery.; Tunneling -- Equipment and supplies.; Tunnels -- United States.; Water tunnels -- United States.
Notes: Distributed to depository libraries in microfiche.

"July 1986."