A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Description of project which is third drainage bore driven in Cripple Creek Area since 1891; main tunnel to extend 6 mi through granite; drilling bits; drilling methods and jumbo equipment; "cherry picker" muck car shifter; haulage; ventilation; progress record; costs.
Description of project which is third drainage bore driven in Cripple Creek Area since 1891; main tunnel to extend 6 mi through granite; drilling bits; drilling methods and jumbo equipment; "cherry picker" muck car shifter; haulage; ventilation; progress record; costs.
Carlton drainage tunnel
Min Congress J
Bebee, A.H. (author)
1941
4 pages
Article (Journal)
English
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