Page:History of merchant shipping and ancient commerce (Volume 2).djvu/589

 -                                   LIVERPOOL GRIDIRONS. -+-+-                                                          |  Breadth  | |   of     | | Gridiron. | Length. -+-+-                                                          |  Ft. In. | Ft. In. Clarence Graving Dock Basin—The Blocks are laid 2 feet } |  25  6    | 313  6 2 inches below the Datum at the South end of the    } |           | Gridiron, and 3 inches below at the North end       } |           | |          | King's Pier—The Blocks are laid at the level of the Datum |  26  0    | 509  0 +-                   Total Length of the Liverpool Gridirons            | 822  6

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LANDING STAGES.

Liverpool.—Prince's Stage   1002 6 long;   80 wide, 4 Bridges from the shore. George's Stage    505 0   "     80   "   2     "        "

Birkenhead.—Low Water   }   1040 0   "  50 & 35 "   2     "        " Basin Stage } Woodside Stage   800 0   "    80    "   2     "        "

—The South end of the Woodside Stage, for a length of 300 feet, including one of the Bridges, is appropriated to the use of the Birkenhead Commissioners. The 500 feet Northwards, and the other Bridge, is under the superintendence of the Dock Board. In connection with this stage there is a Floating Bridge, 678 feet in length by 30 feet in width, by means of which an easy incline for Carriage Traffic is maintained at all times of the Tide.

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===================+===============+=================+========+===========         |               |   |Level of| |   Width of   +++ Coping |   Water |  Entrance. | Above | Below  | above  |   Area. |              | Datum. | Datum. | Datum. | +-+|++- The Corporation of Liverpool. |      Ft. In. | Ft. In.| Ft. In.| Ft. In.| Acres Yds. |              |        |        |        |      The River Craft Dock      | Outer  30   0 |  0   3 |   .. | 25  4 |   1   3416      Lock, and Eagle Basin     | Inner  30   0 |  1   3 |   .. | 25 10 |     .. Ditto Anderton Basin            |   .. 40  0 |   ..   |   ..   |   ..   |   0   1198                                |               |        |        |        | The Trustees of the late       |               |        |        |        | Duke of Bridgewater.       |               |        |        |        | |              |        |        |        |      Duke's Dock               | Outer  40   0 |   .. | 4   6 | 25   6 |   2   1336                                | Middle 28  10 |  0   6 |   .. | 22  9 |     ..                                | Inner  40   0 |   .. | 6   0 | 25   0 |     .. Ditto Egerton Dock              |   .. 20  0 |  0   6 |   ..   | 23   0 |   0   2700                                |               |        |        |        | The London & North-Western     |               |        |        |        | Railway Company.           |               |        |        |        | |              |        |        |        |      Garston Dock              | North  20   0 |   .. | 6   0 | 26   0 |   6   1200                                | South  50   0 |   .. |  ..   |   ..   |     ..                                                                           +-                                                                           |  11    170 -+-

The Leeds and Liverpool Canal is in communication with Stanley Dock through Four Locks and Five intermediate Basins. The Locks are each 81 feet long by 16 feet 6 inches wide, and the Total Rise is 46 feet 6 inches. The Level of the Water in the Canal is 58 feet above the Datum.