upper portion of this navigation, called The Basin, is to be nearly one thousand five hundred yards in length, and 20 feet deep; from which are two communications by short cuts to the Glamorganshire Canal; one of which proceeding at right angles westwards from the inner lock at the northern extremity of the Entrance Canal, is three hundred and twenty yards in length; the other proceeds in the same direction from the upper end of the basin next to the town of Cardiff, and is two hundred and seventy yards in length.
The canal and basin is to be supplied with water by means of a feeder extending from a place in the River Taff, about half a mile north of Cardiff Castle; it is in length one mile and a half, and in its course will pass along some of the streets of Cardiff:
The whole of these works are to be executed at the sole expense of The Most Honorable John Crichton Stuart, Marquis of Bute and Earl of Dumfries, under the authority of an act which received the sanction of his Majesty King William IV. on the 16th July, 1830, entitled, 'An Act for empowering the Marquis of Bute to make and maintain a Ship Canal, commencing near the Mouth of the River Taff, in the county of Glamorgan, and terininating near the town of Cardiff, with other Works to communicate therewith.'
Mr. James Green, civil engineer, designed the above works, and estimated the cost at £76,669.
For the security of the water belonging to the proprietors of the Glamorganshire Canal, the Marquis is bound to maintain, by means of stop locks, his basin and the two collateral cuts extending therefrom at an elevation of 3 inches above the level of the top water-mark of the above-mentioned canal; and the proprietors of that navigation are in return required, upon one month's notice being given in writing, to let off their water to enable the Marquis to execute his works; but upon payment to them, on these occasions, the sum of £50 per diem, during the time their navigation is so obstructed.
The act empowers the Marquis of Bute to demand the following tonnage rates :-
