An Account of the Bell Rock Light-House / Including the Details of the Erection and Peculiar Structure of That Edifice; to Which Is Prefixed a Historical View of the Institution and Progress of the Northern Light-Houses

by Robert Stevenson

The work performed in the course of the present season, consists first of preparing the Rock for the foundation of the Light-house to a certain extent; but owing to that part of the Rock where the Light-house is to stand being very uneven in the surface, and some of it within 2½ feet of the level of the sea at low-water of spring-tides, the time at which the men can work is of course very limited; and as there would be great danger of shivering the Rock, if blasting or any other violent measure were resorted to for expediting the work, it has been thought better to proceed in the more secure mode of cutting the stone by picks and chisels, which, as the Rock is hard, and so consumes much time, considerable progress has been made towards this; and I hope, by the end of next June, the whole of the Rock will be completely ready to receive the foundation-course of the Light-house: perhaps it may even be ready sooner; but so much depends on weather, I do not venture to state particularly the time when this most essential object will be completed; but I have great confidence in the zeal Mr Stevenson has shewn in the past season, to prognosticate that he will do all that can be done in the next to expedite the work.

A large beacon, consisting of six main beams of timber, about 13 inches square, and 44 feet long, has been erected on the Rock; it forms a pyramid of about 42 feet high, and a base of the same extent. This is well secured to the Rock with dove-tail cramps, and with chains and braces. Near the top are cross-bars to stiffen the upper part of it, which have been found of great use, as the smith’s forge for sharping tools was erected there, and for the last fortnight the tools were sharped, and various other works done, which tended greatly to facilitate the operations at the Rock. The workmen continued there during the time the Rock was covered with the tide, which enabled them to begin working the moment the part was uncovered where they were employed, and it likewise enabled them to work till the last moment, when the tide began to cover the work. Had no such asylum been provided, the workmen would not only have lost much time in getting from the vessel to the Rock, but also in getting from it. This beacon is not yet entirely finished: a few good tides would enable the workmen to complete it, and when done, I have great hopes it will be found to resist the storms; indeed it has resisted several even in the unfinished state it is, and therefore is a favourable prognostication that it would be stable when completed.

There is, besides, a provision-chest intended to be placed on its top, and above this a ball and flag-staff, so that I hope it will be a very useful additional mark for mariners to avoid this dangerous Rock, and should be advertised as well as the Floating-Light.

The advanced state of the year renders it necessary that the operations at the Rock should stand until the spring of the year. This is proposed to be done whenever the beacon is completed; but during the winter every requisite measure should be taken to proceed with the work for the Rock as expeditiously as possible. For this purpose I must beg leave to recommend to the Commissioners that the remainder of the articles mentioned in our Report of the 26th December last, should be provided with as little delay as possible.

The ground taken on lease from John Taylor, at Arbroath, for a wood-yard, has been covered in part with the necessary buildings and workshops, but sheds for the masons to work in during the winter season are not yet done. These may be got of the most temporary kind; if they just keep off the rain it will be enough, and no delay should take place in procuring them.

Several cargoes of Aberdeen and Dundee stones have been laid down and landed at the yard, part of which are worked, and the masons are engaged in working the remainder. I am sorry, however, to say, that neither the supply from Aberdeen nor Kingoodie has been so abundant as could be wished. Unless exertions far greater than has hitherto appeared be made, it will be impossible to proceed with the building on the Rock next season. I accompanied Mr Stevenson both to Aberdeen and Kingoodie. In viewing the former, it appears, that unless stones are purchased from such quarries near Aberdeen, as may turn them out, it is scarcely probable a sufficient quantity of large stones for the lower courses of the Light-House can be had in due time from the Rubieslaw quarries alone. It therefore will be advisable, that Mr Skene empower his agent to purchase from the other quarries whenever blocks of the requisite size can be found. As to the Kingoodie quarry, it only wants a little exertion on the part of Colonel Mylne’s agents, as the quantity wanted would be easily got in a few weeks, if exertion such as has been promised be made.

The Floating-Light was completed and moored within the distance of one mile from the Rock on the 9th July, and for some time the people employed at the Rock lodged in her; but the situation in which she was moored has been found not to answer, as, after the gale of the 6th September last, which she rode out with perfect safety, it was found that her cable had been cut by a piece of rock or wreck. She went adrift next day, luckily without receiving any injury, but it has been found that there is no clear ground, (at least that has yet been discovered), less than the distance of about two miles and a half from the Rock, which will render her of no use as a place to accommodate the workmen; another vessel of some sort must therefore be provided. The Yacht has been used since the Float was removed to such a distance, but as neither the manner she was rigged, nor her accommodation, is suitable, nor indeed can she well be spared from attending the other light-houses, she cannot be counted upon in future. In my opinion a proper vessel should be purchased, and fitted up for this purpose, and she will sell at little discount after the work is completed.

One vessel of the description mentioned in the second article of the Report of 26th December 1806, has been built and fitted out. She has been engaged in carrying materials to the Rock; in carrying stones to the yard; and sundry other matters. A second vessel of the like description should be got ready against the spring, to carry the stones and materials to the Rock, &c. Two cranes have been purchased for loading and unloading stones; one has been erected at Aberdeen, and the other at Arbroath; and they both answer the purpose very well. Triangles, and other necessary apparatus are preparing for the work on the Rock, and will be ready against the time they are wanted. Mooring-chains and buoys for the vessels employed about the Rock have also been prepared and laid down.

It was proposed, in the Report of December last, to have a coffer-dam on the Rock, for keeping out the water during a part of the time the tide is flowing; but it rises so quickly here, after having turned, that I do not think a coffer-dam will produce advantages adequate to the expence. It is therefore proposed to do the work without any coffer-dam at all: there has been sufficient trial already made, to satisfy us respecting its practicability without a coffer-dam. The beacon already erected, and which there is reason to believe will stand, renders a stage of the description formerly mentioned unnecessary. It is intended, should this beacon stand over the winter, to erect places for the accommodation of the workmen employed at the Rock on its top. This will greatly facilitate the operations, as before stated.