Of the Mud of the Streets.
The dirt yielded by a macadamized road, no matter what the composition, is always termed by the scavengers “mac;” what is yielded by a granite-paved way is always “mud.” Mixed mud and “mac” are generally looked upon as useless.
I inquired of one man, connected with a contractor’s wharf, if he could readily distinguish the difference between “mac” and other street or mixed dirts, and he told me that he could do so, more especially when the stuff was sufficiently dried or set, at a glance. “If mac was darker,” he said, “it always looked brighter than other street-dirts, as if all the colour was not ground out of the stone.” He pointed out the different kinds, and his definition seemed to me not a bad one, although it may require a practised eye to make the distinction readily.
Street-mud is only partially mud, for mud is earthy particles saturated with water, and in the composition of the scavenger’s street-mud are dung, general refuse (such as straw and vegetable remains), and the many things which in poor neighbourhoods are still thrown upon the pavement.
In the busier thoroughfares of the metropolis—apart from the City, where there is no macadamization requiring notice—it is almost impossible to keep street “mac” and mud distinct, even if the scavengers cared more to do so than is the case at present; for a waggon, or any other vehicle, entering a street paved with blocks of wrought granite from a macadamized road must convey “mac” amongst mud; both “mac” and mud, however, as I have stated, are the most valuable separately.
In a Report on the Supply of Water, Appendix No. III., Mr. Holland, Upper Stamford-street, Waterloo-road, is stated to have said, in reply to a question on the subject:—“Suppose the inhabitants of one parish are desirous of having their streets in good order and clean: unless the adjoining districts concur, a great and unjust expense is imposed upon the cleaner parish; because every vehicle which passes from a dirty on to a clean street carries dirt from the former to the latter, and renders cleanliness more difficult and expensive. The inhabitants of London have an interest in the condition of other streets besides those of their own parish. Besides the inhabitants of Regent-street, for instance, all the riders in the 5000 vehicles that daily pass through that great thoroughfare are affected by its condition; and the inhabitants of Regent-street, who have to bear the cost of keeping that street in good repair and well cleansed, for others’ benefit as well as for their own, may fairly feel aggrieved if they do not experience the benefits of good and clean streets when they go into other districts.”
In the admixture of street-dirt there is this material difference—the dung, which spoils good “mac,” makes good mud more valuable.
After having treated so fully of the road-produce of “mac,” there seems no necessity to say more about mud than to consider its quantity, its value, and its uses.
In the Haymarket, which is about an eighth of a mile in length, and 18 yards in width, a load and a half of street-mud is collected daily (Sundays excepted), take the year through. As a farmer or market-gardener will give 3s. a load for common street-mud, and cart it away at his own cost, we find that were all this mud sold separately, at the ordinary rate, the yearly receipt for one street alone would be 70l. 4s. This public way, however, furnishes no criterion of the general mud-produce of the metropolis. We must, therefore, adopt some other basis for a calculation; and I have mentioned the Haymarket merely to show the great extent of street-dirt accruing in a largely-frequented locality.
But to obtain other data is a matter of no small difficulty where returns are not published nor even kept. I have, however, been fortunate enough to obtain the assistance of gentlemen whose public employment has given them the best means of forming an accurate opinion.
The street mud from the Haymarket, it has been positively ascertained, is 1¼ load each wet day the year through. Fleet-street, Ludgate-hill, Cheapside, Newgate-street, the “off” parts of St. Paul’s Church-yard, Cornhill, Leadenhall-street, Bishopsgate-street, the free bridges, with many other places where locomotion never ceases, are, in proportion to their width, as productive of street mud as the Haymarket.
Were the Haymarket a mile in length, it would supply, at its present rate of traffic, to the scavenger 6 loads of street mud daily, or 36 loads for the scavenger’s working week. In this yield, however, I am assured by practical men, the Haymarket is six times in excess of the average streets; and when compared with even “great business” thoroughfares, of a narrow character, such as Watling-street, Bow-lane, Old-change, and other thoroughfares off Cheapside and Cornhill, the produce of the Haymarket is from 10 to 40 per cent. in excess.
I am assured, however, and especially by a gentleman who had looked closely into the matter—as he at one time had been engaged in preparing estimates for a projected company purposing to deal with street-manures—that the 50 miles of the City may be safely calculated as yielding daily 1½ load of street mud per mile. Narrow streets—Thames-street for instance, which is about three-quarters of a mile long—yield from 2½ to 3½ loads daily, according to the season; but a number of off-streets and open places, such as Long-alley, Alderman’s-walk, America-square, Monument-yard, Bridgewater-square, Austin-friars, and the like, are either streets without horse-thoroughfares, or are seldom traversed by vehicles. If, then, we calculate that there are 100 miles of paved streets adjoining the City, and yielding the same quantity of street mud daily as the above estimate, and 200 more miles in the less central parts of the metropolis, yielding only half that quantity, we find the following daily sum during the wet season:—
| Loads. | |
| 150 miles of paved streets, yielding 1½ load of street mud per mile | 225 |
| 200 miles of paved streets, yielding ¾ load of street mud per mile | 150 |
| 375 | |
| Weekly amount of street mud during the wet season | 2,250 |
| Total ditto for six months in the year | 58,500 |
| 63,000 loads of street mud, at 3s. per load | £8775 |
The great sale for this mud, perhaps nineteen-twentieths, is from the barges. A barge of street-manure, about one-fourth (more or less) “mac,” or rather “mac” mixed with its street proportion of dung, &c., and three-fourths mud, dung, &c., contains from 30 to 40 tons, or as many loads. These manure barges are often to be seen on the Thames, but nearly three-fourths of them are found on the canals, especially the Paddington, the Regent’s, and the Surrey, these being the most immediately connected with the interior part of the metropolis. A barge-load of this manure is usually sold at from 5l. to 6l. Calculating its average weight at 35 tons, and its average sale at 5l. 10s., the price is rather more than 3s. a load. “Common street mud,” I have been informed on good authority, “fetches 3s. per load from the farmer, when he himself carts it away.”
The price of the barge-load of manure is tolerably uniform, for the quality is generally the same. Some of the best, because the cleanest, street mud—as it is mixed only with horse-dung—is obtained from the wood streets, but this mode of pavement is so circumscribed that the contractors pay no regard to its manure produce, as a general rule, and mix it carelessly with the rest. Such, at least, is the account they themselves give, and they generally represent that the street manure is, owing to the outlay for cartage and boatage, little remunerative to them at the prices they obtain; notwithstanding, they are paid to remove it from the streets. Indeed, I heard of one contractor who was said to be so dissatisfied with the demand for, and the prices fetched by, his street-manure, that he has rented a few acres not far from the Regent’s Canal, to test the efficacy of street dirt as a fertilizer, and to ascertain if to cultivate might not be more profitable than to sell.