Category:Tunnels

Subcategories

This category has the following 37 subcategories, out of 37 total.

Pages in category "Tunnels"

The following 2 pages are in this category, out of 2 total.

Media in category "Tunnels"

The following 200 files are in this category, out of 339 total.

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  144-202.LK--Nay Aug Tunnel--Clearances--Scranton, PA (c7340f6b-568d-4cd1-ba12-3c3f01c84637).jpg 6,518 × 4,219; 5.45 MB
  
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  2120285356 - Flickr - S.AlSadhan.jpg 3,072 × 2,048; 1.12 MB
  
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  A Tunnel.jpg 2,432 × 4,320; 2.53 MB
  
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  Au travers de Liège par la liaison E40-E25.pdf 1,239 × 1,752, 97 pages; 11.72 MB
  
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  Interior section of the Chicago Lake tunnel (NYPL b11707455-G90F178 003F).tiff 3,072 × 1,736; 15.26 MB
  
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  Interior section of the Chicago Lake tunnel (NYPL b11707455-nypl pho 199).tiff 6,510 × 4,888; 91.04 MB
  
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  Marble quarry, North Adams (NYPL b11707516-G90F241 006F).tiff 3,072 × 1,753; 15.41 MB
  
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  Entrance to tunnel, east end (NYPL b11707516-G90F241 007F).tiff 3,072 × 1,665; 14.64 MB
  
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  Entrance to tunnel, east end (NYPL b11707516-G90F241 008F).tiff 3,072 × 1,679; 14.76 MB
  
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  Entrance to tunnel, west end (NYPL b11707516-G90F241 010F).tiff 3,072 × 1,660; 14.59 MB
  
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  Machinery for compressing air, central shaft (NYPL b11707516-G90F241 011F).tiff 3,072 × 1,626; 14.29 MB
  
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  Natural bridge (NYPL b11707516-G90F241 012F).tiff 3,072 × 1,638; 14.4 MB
  
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  Construction view of the east side (NYPL b11707516-G90F241 013F).tiff 3,072 × 1,653; 14.53 MB
  
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  Deerfield valley, looking north (NYPL b11707516-G90F241 014F).tiff 3,072 × 1,740; 15.3 MB
  
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  Men and children posed at the blacksmith's shop at the east end of the tunnel (NYPL b11707516-G90F241 015F).tiff 3,072 × 1,696; 14.91 MB
  
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  Hoosac Tunnel, Mass (NYPL b11707516-G90F241 016F).tiff 3,072 × 1,734; 15.24 MB
  
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  View of construction (NYPL b11707516-G90F241 017F).tiff 3,072 × 1,708; 15.01 MB
  
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  View of construction (NYPL b11707516-G90F241 018F).tiff 3,072 × 1,775; 15.6 MB
  
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  Buildings and tracks near the tunnel (NYPL b11707516-G90F241 019F).tiff 3,072 × 1,694; 14.89 MB
  
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  Portal (NYPL b11707516-G90F241 020F).tiff 3,072 × 1,772; 15.58 MB
  
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  Deerfield river, looking up (NYPL b11707516-G90F241 021F).tiff 3,072 × 1,686; 14.82 MB
  
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  The "N.C.Munson," first engine through Hoosac tunnel, February 9th, 1875 (NYPL b11707516-G90F241 022F).tiff 3,072 × 1,692; 14.87 MB
  
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  Hoosac Tunnel-interior view, showing drill carriage and pipes (NYPL b11707516-G90F241 023F).tiff 3,072 × 1,704; 14.98 MB
  
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  Hoosac Tunnel-interior view (NYPL b11707516-G90F241 024F).tiff 3,072 × 1,701; 14.95 MB
  
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  Workers at mouth of tunnel (NYPL b11707516-G90F241 025F).tiff 3,072 × 1,672; 14.7 MB
  
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  Fearful bridge (NYPL b11707516-G90F241 026F).tiff 3,072 × 1,693; 14.88 MB
  
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  West portal-entrance (NYPL b11707516-G90F241 027F).tiff 3,072 × 1,769; 15.55 MB
  
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  West portal-entrance (NYPL b11707516-G90F241 028F).tiff 3,072 × 1,747; 15.36 MB
  
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  West portal-showing archway (NYPL b11707516-G90F241 029F).tiff 3,072 × 1,697; 14.92 MB
  
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  View from Rock Arbor-looking down str (NYPL b11707516-G90F241 030F).tiff 3,072 × 1,694; 14.89 MB
  
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  West entrance of arch (NYPL b11707516-G90F241 031F).tiff 3,072 × 1,705; 14.99 MB
  
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  West entrance of arch (NYPL b11707516-G90F241 032F).tiff 3,072 × 1,693; 14.88 MB
  
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  West entrance of arch looking out (NYPL b11707516-G90F241 033F).tiff 3,072 × 1,705; 14.99 MB
  
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  East end-near view (NYPL b11707516-G90F241 034F).tiff 3,072 × 1,675; 14.72 MB
  
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  East end-miners going in (NYPL b11707516-G90F241 035F).tiff 3,072 × 1,694; 14.89 MB
  
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  East end-miners going in (NYPL b11707516-G90F241 036F).tiff 3,072 × 1,690; 14.86 MB
  
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  Blacksmith shop, &c., east end (NYPL b11707516-G90F241 037F).tiff 3,072 × 1,687; 14.83 MB
  
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  Blacksmith shop, &c., east end (NYPL b11707516-G90F241 038F).tiff 3,072 × 1,731; 15.22 MB
  
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  Machine shop (NYPL b11707516-G90F241 039F).tiff 3,072 × 1,769; 15.55 MB
  
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  Compressor building and dump (NYPL b11707516-G90F241 040F).tiff 3,072 × 1,724; 15.15 MB
  
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  Hawkins' well-no. 4 (NYPL b11707516-G90F241 041F).tiff 3,072 × 1,700; 14.94 MB
  
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  Hawkins' well-no. 4 (NYPL b11707516-G90F241 042F).tiff 3,072 × 1,707; 15.01 MB
  
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  Near view of central shaft building, eng'rs at work (NYPL b11707516-G90F241 043F).tiff 3,072 × 1,726; 15.17 MB
  
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  Miners descending the west shaft (NYPL b11707516-G90F241 044F).tiff 3,072 × 1,684; 14.8 MB
  
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  Jenks & Rice's hotel-across the Deerfield (NYPL b11707516-G90F241 045F).tiff 3,072 × 1,683; 14.79 MB
  
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  Views of a covered bridge over the Deerfield River (NYPL b11707516-G90F241 046F).tiff 3,072 × 1,741; 15.3 MB
  
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  Jenks & Rice's hotel-from R. R. tracks (NYPL b11707516-G90F241 047F).tiff 3,072 × 1,764; 15.51 MB
  
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  Jenks & Rice's hotel-from R. R. tracks (NYPL b11707516-G90F241 048F).tiff 3,072 × 1,717; 15.09 MB
  
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  View of railroad construction from hill (NYPL b11707516-G90F241 049F).tiff 3,072 × 1,681; 14.78 MB
  
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  Steam shovel at work (NYPL b11707516-G90F241 050F).tiff 3,072 × 1,704; 14.98 MB
  
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  View of dam 1-4 mile above machine shop (NYPL b11707516-G90F241 051F).tiff 3,072 × 1,728; 15.19 MB
  
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  View of dam at foot of cascade, 1-4 mile up creek (NYPL b11707516-G90F241 052F).tiff 3,072 × 1,701; 14.95 MB
  
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  View of the cascade 125 feet high, 1-4 mile up the creek, to the right of the mouth of tunnel at east end (NYPL b11707516-G90F241 053F).tiff 3,072 × 1,680; 14.77 MB
  
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  View of the cascade 125 feet high, 1-4 mile up the creek, to the right of the mouth of tunnel at east end (NYPL b11707516-G90F241 054F).tiff 3,072 × 1,710; 15.03 MB
  
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  View of the cascade 200 feet high, 1-4 mile up the creek, to the right of the mouth of tunnel at east end (NYPL b11707516-G90F241 055F).tiff 3,072 × 1,694; 14.89 MB
  
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  Central shaft 583 feet deep, showing new buildings (NYPL b11707516-G90F241 056F).tiff 3,072 × 1,721; 15.13 MB
  
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  West end as it appears from the original standpoint, looking north-east (NYPL b11707516-G90F241 057F).tiff 3,072 × 1,692; 14.87 MB
  
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  East end, October 1st, 1868 (NYPL b11707516-G90F241 058F).tiff 3,072 × 1,680; 14.77 MB
  
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  East end, October 1st, 1868 (NYPL b11707516-G90F241 059F).tiff 3,072 × 1,711; 15.04 MB
  
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  View of east end of tunnel looking out (NYPL b11707516-G90F241 060F).tiff 3,072 × 1,687; 14.83 MB
  
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  Shelburne falls rapids (NYPL b11707516-G90F241 061F).tiff 3,072 × 1,643; 14.44 MB
  
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  Shelburne falls rapids (NYPL b11707516-G90F241 062F).tiff 3,072 × 1,611; 14.16 MB
  
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  Shelburne falls general view (NYPL b11707516-G90F241 063F).tiff 3,072 × 1,656; 14.56 MB
  
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  East cascade (NYPL b11707516-G90F241 064F).tiff 3,072 × 1,638; 14.4 MB
  
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  Machine shop at east end (NYPL b11707516-G90F241 065F).tiff 3,072 × 1,678; 14.75 MB
  
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  Machine shop at east end (NYPL b11707516-G90F241 066F).tiff 3,072 × 1,679; 14.76 MB
  
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  Natural bridge (NYPL b11707516-G90F241 067F).tiff 3,072 × 1,651; 14.51 MB
  
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  Entrance to central shaft (NYPL b11707516-G90F241 068F).tiff 3,072 × 1,662; 14.61 MB
  
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  General view of the central shaft (NYPL b11707516-G90F241 069F).tiff 3,072 × 1,640; 14.42 MB
  
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  Entrance to tunnel, west end (NYPL b11707516-G90F241 070F).tiff 3,072 × 1,635; 14.37 MB
  
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  Entrance to tunnel, east end (NYPL b11707516-G90F241 071F).tiff 3,072 × 1,646; 14.47 MB
  
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  Hoosac mountain (NYPL b11707516-G90F241 072F).tiff 3,072 × 1,636; 14.38 MB
  
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  Deerfield dam (NYPL b11707516-G90F241 073F).tiff 3,072 × 1,719; 15.11 MB
  
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  Hoosac Tunnel, west end (NYPL b11707516-G90F241 074F).tiff 3,072 × 1,738; 15.28 MB
  
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  Railroad and river (NYPL b11707516-G90F241 075F).tiff 3,072 × 1,706; 15 MB
  
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  Prof. Mowbray's nitro-glycerine works at the west shaft, North Adams, Mass (NYPL b11707516-G90F241 076F).tiff 3,072 × 1,731; 15.22 MB
  
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  Hoosac house and mountain (NYPL b11707516-G90F241 077F).tiff 3,072 × 1,685; 14.81 MB
  
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  Stone dam at glan mill (NYPL b11707516-G90F241 078F).tiff 3,072 × 1,726; 15.17 MB
  
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  Natural bridge, looking up stream (NYPL b11707516-G90F241 079F).tiff 3,072 × 1,704; 14.98 MB
  
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  Natural bridge, looking down stream (NYPL b11707516-G90F241 080F).tiff 3,072 × 1,725; 15.16 MB
  
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  Lover's retreat near nat. bridge (NYPL b11707516-G90F241 081F).tiff 3,072 × 1,714; 15.07 MB
  
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  View of the central shaft after a naptha explosion (1867) where thirteen were killed, showing people at the top of the shaft awaiting the recovery of bodies (NYPL b11707516-G90F241 082F).tiff 3,072 × 1,714; 15.07 MB
  
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  Miners descending the west shaft (NYPL b11707516-G90F241 083F).tiff 3,072 × 1,698; 14.93 MB
  
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  West end, showing the brick arch (NYPL b11707516-G90F241 084F).tiff 3,072 × 1,701; 14.95 MB
  
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  West end, showing the brick arch (NYPL b11707516-G90F241 085F).tiff 3,072 × 1,691; 14.86 MB
  
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  West end from the original surface standpoint, looking north-east (NYPL b11707516-G90F241 086F).tiff 3,072 × 1,684; 14.8 MB
  
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  East end of tunnel, showing bed of road (NYPL b11707516-G90F241 087F).tiff 3,072 × 1,670; 14.68 MB
  
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  East end of tunnel, showing bed of road (NYPL b11707516-G90F241 088F).tiff 3,072 × 1,686; 14.82 MB
  
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  Dam on the Deerfield (NYPL b11707516-G90F241 089F).tiff 3,072 × 1,703; 14.97 MB
  
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  Miners descending the west shaft with the Burleigh Drill (NYPL b11707516-G90F241 090F).tiff 3,072 × 1,726; 15.17 MB
  
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  The new air compressors which furnish power to drive the drills, about 500 feet below the surface of the earth (NYPL b11707516-G90F241 091F).tiff 3,072 × 1,704; 14.98 MB
  
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  The new air compressors which furnish power to drive the drills, about 500 feet below the surface of the earth (NYPL b11707516-G90F241 092F).tiff 3,072 × 1,720; 15.12 MB
  
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  Hoosac Tunnel (NYPL b11707516-G90F241 093ZF).tiff 3,072 × 1,901; 16.71 MB
  
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  Interior view of Hoosac tunnel (NYPL b11707516-G90F241 094ZF).tiff 3,072 × 1,870; 16.44 MB
  
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  Hoosac Tunnel, east portal and mountain (NYPL b11707516-G90F241 095ZF).tiff 3,072 × 2,019; 17.75 MB
  
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  Hoosac Tunnel, east portal and mountain (NYPL b11707516-G90F241 096ZF).tiff 3,072 × 1,996; 17.55 MB
  
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  Hoosac Tunnel, east portal and mountain (NYPL b11707516-G90F241 097ZF).tiff 3,072 × 2,042; 17.95 MB
  
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  West portal, section 6, sta. 20184 (NYPL b11707565-G90F311 028ZF).tiff 3,072 × 1,952; 17.16 MB
  
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  East portal, sec. 6 (NYPL b11707565-G90F311 029ZF).tiff 3,072 × 1,928; 16.95 MB
  
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  Rock cut, sta. 290, sec. 8 (NYPL b11707565-G90F311 034ZF).tiff 3,072 × 1,925; 16.92 MB
  
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  West portal of tunnel, sec. 8 (NYPL b11707565-G90F311 035ZF).tiff 3,072 × 1,928; 16.95 MB
  
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  East portal, sec. 8, sta. 30978 (NYPL b11707565-G90F311 036ZF).tiff 3,072 × 1,919; 16.87 MB
  
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  The Tunnel in the Jackson Iron Mine (NYPL b11707595-G90F384 016F).tiff 3,072 × 1,722; 15.14 MB
  
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  The Tunnel, River Drive, Philadelphia, Pa (NYPL b12647398-68839).tiff 2,392 × 1,599; 10.95 MB
  
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  The Tunnel, River Drive, Fairmount Park, Philadelphia, Pa (NYPL b12647398-74132).tiff 2,392 × 1,559; 10.68 MB
  
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  Bodleian Libraries, Thames Tunnel 171.jpg 1,000 × 750; 90 KB
  
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  Bouw tunnel Venlo, Aug 2010 - panoramio.jpg 1,200 × 1,600; 323 KB
  
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  Braunwald-Gumen.jpg 3,864 × 2,368; 1.8 MB
  
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  Byhaugtunnel.jpg 4,608 × 3,456; 6.37 MB
  
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  C3M Ramboll Study for proposed tunnel routes between Guernsey Jersey and Lower Normandy.jpg 1,200 × 723; 113 KB
  
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  Cascada Puente de Dios.jpg 3,024 × 4,032; 1.93 MB
  
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  Cascade Tunnel at the west portal, Scenic, June 15, 1926 (PICKETT 376).jpg 768 × 607; 126 KB
  
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  Cheung Tsing Tunnel, Hong Kong.jpg 3,840 × 2,160; 3.3 MB
  
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  Christus1.jpg 956 × 556; 367 KB
  
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  Comboio que passava sentido Guaianã no túnel da Variante Boa Vista-Guaianã km 192 em Itu - panoramio.jpg 1,600 × 1,196; 1.05 MB
  
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  Coming Home Tunnel (348780591).jpg 640 × 428; 32 KB
  
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  Construction of brick lined tunnel(GN03586).jpg 3,264 × 2,448; 1,021 KB
  
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  Construction of tunnel shaft no 2 with view of concrete mixer and steam drills, February 2, 1911 (SPWS 107).jpg 768 × 609; 102 KB
  
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  CorridorArch.JPG 3,296 × 2,472; 892 KB
  
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  Cristina Gottardi 2017-01-15 (Unsplash lbBiktNNHNM).jpg 4,896 × 2,760; 7.84 MB
  
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  Crypta Romana.JPG 3,072 × 1,728; 2.25 MB
  
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  Cycle Park Underpass (89186731).jpeg 2,048 × 1,366; 807 KB
  
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  Dark Empty Tunnel.jpg 1,980 × 3,520; 745 KB
  
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  Dark Tunnel (49549897262).jpg 3,950 × 2,633; 5.61 MB
  
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  Dänischenhagener Mühlenau, Unterführung B503 - panoramio (1).jpg 2,592 × 1,936; 2.31 MB
  
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  Dänischenhagener Mühlenau, Unterführung B503 - panoramio.jpg 1,936 × 2,592; 2.24 MB
  
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  East bound coalie entering western portal during snow - panoramio.jpg 1,880 × 2,816; 1.94 MB
  
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  Effet tunnel.jpg 767 × 766; 142 KB
  
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  Emergency-and-rescue-shelter-for-underground-environment-mines-tunnels-subroca.png 1,014 × 678; 705 KB
  
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  End of the tunnel that leads to Niagara Falls.jpg 1,536 × 1,152; 121 KB
  
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  Energietuebbing-cad.tif 1,024 × 475; 1.39 MB
  
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  Energietuebbing-cad2.jpg 640 × 297; 83 KB
  
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  Entrance to a tunnel that goes underneath the Pacific Motorway. - Asquith, Sydney 2022 - Graffiti 2.jpg 6,576 × 1,792; 4.02 MB
  
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  Entrance to Pioneer tunnel at cross cut 10-B, Snohomish County, Washington, 1929 (PICKETT 1585).jpg 768 × 607; 45 KB
  
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  Entrance to the Pioneer tunnel at Mill Creek, Snohomish County, Washington, 1929 (PICKETT 1584).jpg 768 × 612; 53 KB
  
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  EXIT (27917694546).jpg 2,737 × 2,737; 5.16 MB
  
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  Fahrzeugumgrenzungsprofil.png 748 × 897; 62 KB
  
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  File-A0305-2--Main Line Scranton Division--Nay Aug Tunnel--East End -1905.12.11- (73a9460c-fd3c-4360-95d1-08048ac5b1c8).jpg 5,843 × 4,602; 1.54 MB
  
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  File-A0310-A0314--Main Line Scranton Division--Nay Aug Tunnel -1906.01.02- (380ea3ca-3435-4145-ad1d-f39e0304a0f2).jpg 3,924 × 3,097; 1.36 MB
  
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  File-A0310-A0314--Main Line Scranton Division--Nay Aug Tunnel -1906.01.02- (9834d25f-6522-44a0-9e8d-2cc78c300290).jpg 3,924 × 3,097; 1.46 MB
  
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  Flow diagram of tunnel rock recycling .jpg 2,115 × 1,202; 703 KB
  
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  Forebay showing entrance to the three tunnels which will contain penstocks, August 23, 1911 (SPWS 120).jpg 768 × 605; 64 KB
  
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  Tunnel, arch, man, walking cane Fortepan 4584.jpg 3,005 × 3,391; 5.22 MB
  
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  A Slasko-Dabrowski hídról levezető út az óvárosi alagút felé, szemben a Szent Anna-templom. Fortepan 54652.jpg 5,473 × 3,647; 8.16 MB
  
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  1914 Fortepan 62768.jpg 4,347 × 5,566; 9.72 MB
  
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  Fuehrungen Tour A Bild 15 Holger Happel.jpg 6,240 × 4,160; 8.1 MB
  
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  Gigerwaldsee Tamina Grundablassstollen, Pfäfers SG 20190904-jag9889.jpg 4,608 × 3,456; 11.37 MB
  
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  Goa Belanda di Bandung.jpg 3,060 × 4,080; 5.01 MB
  
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  Grabstätte Eisenhofer vor dem Khun Tan Tunnel.jpg 3,264 × 2,448; 2.24 MB
  
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  Grasdalstunnelen.jpg 4,272 × 2,848; 4.01 MB
  
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  Great Northern Railroad, Wellington disaster (CURTIS 1726).jpeg 768 × 512; 34 KB
  
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  Great Northern Railway pioneer tunnel breakthrough, May 1, 1928 (MOHAI 6940).jpg 690 × 510; 93 KB
  
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  Great Northern Railway, breakthrough in the tunnel, May 1, 1928 (MOHAI 6941).jpg 700 × 558; 62 KB
  
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  H-segons-contingut.jpg 713 × 265; 102 KB
  
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  The Natural Tunnel, (Scott County, Va.) (NYPL Hades-256675-EM15020).tiff 3,791 × 6,000; 65.09 MB
  
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  HD@DH.nrw Straße mit Wegweiser und Tunnel.svg 512 × 240; 4 KB
  
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  Hohle Felsen - Eingang zur großen Höhle.jpg 3,648 × 2,736; 3.71 MB
  
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  Hoist used to lower equipment and men to dig tunnel from outlet canal to penstocks, northwest of Lake Tapps, July 18, 1910 (SPWS 125).jpg 768 × 609; 103 KB
  
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  HPC-000221.jpg (2cb006852c554d51ae580184c0db0373).jpg 516 × 364; 47 KB
  
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  Ie defence positions.png 1,217 × 724; 803 KB
  
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  Immersed tube type a.svg 914 × 728; 662 KB
  
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  Immersed tube type b.svg 795 × 749; 808 KB
  
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  Installation of gates for the three small tunnels which will contain the penstocks, May 15, 1911 (SPWS 155).jpg 768 × 634; 89 KB
  
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  Installation of steel Y-shaped tunnels underneath standpipes, October 15, 1924 (SPWS 82).jpg 768 × 608; 114 KB
  
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  Installing the penstocks in the tunnels, July 20, 1911 (SPWS 665).jpg 768 × 611; 87 KB
  
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  InTheCryptByDesignermadsen-dfc2s7r.png 2,048 × 1,152; 3.91 MB
  
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  Into the Light (Unsplash).jpg 4,288 × 2,848; 2.26 MB
  
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  Klados gusztav.jpg 640 × 427; 98 KB
  
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  Korean highway Expressway in South Korea Tunnel.jpg 2,560 × 1,428; 501 KB
  
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  Kurzer Tunnel bei Bärschwil 1.jpg 4,000 × 6,000; 9.75 MB
  
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  Layers of reinforcing bars at the tunnel intake, September 8, 1925 (SPWS 327).jpg 768 × 609; 80 KB
  
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  Light at the End of the Tunnel (1393725082).jpg 2,136 × 2,848; 2.69 MB
  
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  Light at the End of the Tunnel (22226977929).jpg 3,986 × 2,645; 4.24 MB
  
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  Light-pipe-installation-in-vertical-zone-of-Huashuyan-Tunnel.jpg 600 × 459; 162 KB
  
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  Little Tunnel On The KVR - panoramio.jpg 1,920 × 2,560; 1.13 MB
  
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  Main tunnel, northwest of Lake Tapps, leading into forebay and penstock tunnels, July 28, 1911 (SPWS 108).jpg 478 × 600; 49 KB
  
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  Man in Tunnel (13950189864).jpg 1,024 × 696; 439 KB
  
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  Man standing in completed penstock tunnel between dam and powerhouse, October 22, 1925 (SPWS 384).jpg 768 × 610; 55 KB
  
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  Men at entrance to concrete tunnel at Masonry Dam, April 7, 1913 (SPWS 55).jpg 750 × 600; 121 KB
  
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  Men at north end of penstocks that connect to the powerhouse, June 13, 1925 (SPWS 352).jpg 768 × 610; 79 KB
  
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  Mill Creek shaft concreted up in the finished Cascade Tunnel, Snohomish County, Washington, 1929 (PICKETT 1583).jpg 768 × 606; 61 KB
  
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  Miners with carts at the entrances to mining tunnels at Boulder Hill, Yukon Territory, circa 1898 (AL+CA 1439).jpg 768 × 586; 45 KB
  
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  Mitchell Point Tunnel (22476093746).jpg 1,923 × 3,260; 2.49 MB
  
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  Mont-Blanc-Tunnel im Längsschnitt.png 2,801 × 2,099; 272 KB
  
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  Mt. Saint Helens post-eruption hydrology alterations.jpg 1,453 × 892; 547 KB
  
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  Mysterious tunnel, 9-26-24 LCCN2016849521.tif 4,454 × 6,053; 25.71 MB
  
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  Nameplate of Bangabandhu Sheikh Mujibur Rahman Tunnel.jpg 1,781 × 680; 191 KB
  
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  Nanjing Yangtze River Tunnel.JPG 3,000 × 4,000; 3.64 MB
  
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  NEAT GBT engl crop.png 701 × 605; 1.03 MB
  
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  Nouvelle Caledonie - Tonghoue - Inauguration du Tunnel.jpg 1,004 × 634; 188 KB
  
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  Old mine - panoramio (1).jpg 2,048 × 1,361; 616 KB
  
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  Old Railroad Tunnel Keystone Canyon.jpg 604 × 453; 52 KB
  
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  Old Tunnel - panoramio.jpg 4,000 × 2,248; 2.32 MB
  
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  Orchard Expressway (fantasy).jpg 3,015 × 816; 245 KB
  
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  Orchard Tunnel (fantasy).jpg 1,543 × 4,499; 615 KB
  
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  Parenzana Tunnel bei Vižinada.jpg 4,000 × 2,992; 8.43 MB
  
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  Partly Collapsed Tunnel - panoramio.jpg 4,000 × 2,248; 1.77 MB
  
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  Pass to the beach.jpg 1,760 × 3,201; 875 KB
  
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  Pass to the sea.jpg 1,261 × 1,900; 1.16 MB
  
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  Penstock tunnels under construction at the Gorge Dam Powerhouse site, April 1922 (SPWS 163).jpg 768 × 510; 94 KB