Search U.S. government technical reports digitized or harvested by TRAIL.

Keyword Search

Sinking a Large-Diameter Concrete-Lined Access Shaft: Harold D. Roberts Tunnel, Colorado

Published Year

• 1960-1969 (1)

Subject

• Shaft sinking. (1) *
• Tunnels -- Colorado. (1)
• Water diversion -- Colorado. (1)
• Water-supply engineering -- Colorado. (1)

Author

• Bolmer, R. L. (1) *

• About TRAIL
• FAQ
• Join TRAIL
• Contact Us

Search developed and maintained by the University of Washington Libraries
Copyright 2010