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Is a Ship Canal Practicable?: Notes, Historical and Statistical, Upon the Projected Routes for an Interoceanic Ship Canal Between the Atlantic and Pacific Oceans, in Which is Included a Short Account of the Character and Influence of the Canal of Suez, and the Probable Effects Upon the Commerce of the World of the Two Canals, Regarded Either as Rivals, or as Parts of One System of Interoceanic NavigationAbert, S. T. (Silvanus Thayer)

History

Is a Ship Canal Practicable?: Notes, Historical and Statistical, Upon the Projected Routes for an Interoceanic Ship Canal Between the Atlantic and Pacific Oceans, in Which is Included a Short Account of the Character and Influence of the Canal of Suez, and the Probable Effects Upon the Commerce of the World of the Two Canals, Regarded Either as Rivals, or as Parts of One System of Interoceanic Navigation

Name: Is a Ship Canal Practicable?: Notes, Historical and Statistical, Upon the Projected Routes for an Interoceanic Ship Canal Between the Atlantic and Pacific Oceans, in Which is Included a Short Account of the Character and Influence of the Canal of Suez, and the Probable Effects Upon the Commerce of the World of the Two Canals, Regarded Either as Rivals, or as Parts of One System of Interoceanic Navigation
Author: Abert, S. T. (Silvanus Thayer)

Abert, S. T. (Silvanus Thayer)

Canals, Interoceanic

│                       │         │        │     │ Fuller’s earth.
    2 │Islington, Regents Can.│  ...    │  ...   │1812 │London clay.
    3 │Tetney, Haven Canal    │  563,405│  192.50│1827 │Various.
    4 │Walford, N.W.R.R.      │  ...    │  ...   │1838 │Chalk.
    5 │Box Tunnel, G.W. “     │1,561,500│  500.00│1838 │Freestone.
    6 │Littleboro’, M.&L. “   │4,255,000│  440.00│1841 │Various.
    7 │Thames, Foot Passage   │2,273,570│5,685.00│1842 │London clay.
    8 │Bletchingly, S.E.R.R.  │  486,185│  351.00│1842 │Shale.
    9 │Saltwood,     “   “    │  562,710│  590.00│1843 │Lower greensand.
    ──┴───────────────────────┴─────────┴────────┴─────┴────────────────

Canal tunnels are rarely larger than 16½ feet by 18 feet high.
Supposing the same dimensions to obtain in French tunnels, the cost per
lineal yard of the following named tunnels will furnish a basis for
comparison:

    ═════════════════════════════╤═══════════╤═════════
                                 │  LENGTH   │ COST PER
         NAMES OF TUNNELS.       │ IN YARDS. │   YARD.
    ─────────────────────────────┼───────────┼─────────
    Norieu, St. Quinten Canal    │  13,128   │ $14.00
    Pouilly, Canal de Bourgoyne  │    3,660  │ 393.75
    Soussay, Canal de Bourgoyne  │    3,852  │  45.50
    Maurages, Canal de Marne     │    5,320  │ 325.00
    St. Argnan, Canal d’Ardennes │      288  │ 200.00
    ─────────────────────────────┴───────────┴─────────

[Illustration: PLAN AND PROFILE OF MONT CENIS TUNNEL]

Among railroad tunnels, the following are selected from different parts
of the continent:

Public-domain text, read in full here on John Shaqi.

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