Category:Illustrations for “Tunnel” in The American Cyclopædia

Media in category "Illustrations for “Tunnel” in The American Cyclopædia"

The following 7 files are in this category, out of 7 total.

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  AmCyc Tunnel - arch built.jpg 933 × 787; 262 KB
  
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  AmCyc Tunnel - Musconetcong cross section - arching.jpg 685 × 571; 77 KB
  
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  AmCyc Tunnel - Musconetcong cross section - no support.jpg 546 × 436; 64 KB
  
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  AmCyc Tunnel - top and bottom heading driven - ready for arching (front view).jpg 935 × 791; 261 KB
  
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  AmCyc Tunnel - top and bottom heading driven - ready for arching (side view).jpg 934 × 802; 280 KB
  
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  AmCyc Tunnel - tunneling through loose rock (front view).jpg 895 × 777; 223 KB
  
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  AmCyc Tunnel - tunneling through loose rock (side view).jpg 829 × 737; 245 KB