Читать книгу The Mirror of Literature, Amusement, and Instruction. Volume 14, No. 405, December 19, 1829 - Various - Страница 2

(For the Mirror.)

At page 310 of the present volume of your miscellany, your correspondent Vyvyan states that the tide rises at Chepstow more than 60 feet, and that a mark in the rocks below the bridge there denotes its having risen to the height of 70 feet, which is, perhaps (Vyvyan states), the greatest altitude of the tides in the world. At Windsor, seated on the east bank of the Avon river, which falls into the Basin of Mines, at the head of the Bay of Fundy, the spring tides regularly rise 70 feet and upwards; and at Truro, at the eastern extremity of the Bay of Fundy, the spring tides rise to an altitude of 100 feet. There are some parts of the west coast of North America also where the tides rise to a very high altitude; but I do not at this moment remember the particulars. My attention having thus been directed to the Bay of Fundy, it induces me to inform you, that an inland water communication, at a minimum depth of eight feet, and proportionate expanse, is now forming from Halifax, Nova Scotia, by the Shubenacadie river, falling into the Bay of Fundy, near the abovementioned town of Truro.

The total length of this canal is 53 miles, 1,024 yards, the artificial portion of which is only 2,739 yards, the remainder being formed by a chain of deep lakes and the Shubenacadie river. The summit level is 95 feet 10 inches above the high-water surface of medium tides in Halifax harbour; and is attained by seven locks, each 87 feet long, and 22 feet six inches wide; and the tide locks nine feet in depth of water. The descent into the Bay of Fundy, at highwater surface medium tides, is by eight locks.

The estimated expense of this interesting work is £54,000.

J.M.