Show ja ENTRANCE ROADS FOR FARMS engineers of bureau of public roads road give advice on application of bituminous material prepared by the united states department of agriculture owners of large farms nod and rural estates seeking a more satisfactory type of entrance road have applied to the bureau of public roads of the united states department of 0 agriculture for advice regarding the application of bituminous material on main entrance and much traveled farm lanes the bureaus e engineers ngi point out that such applications nay may be made successfully on any farm road which lias has already been constructed of stone ston C gravel or other similar material and is in a thoroughly compacted and reasonably smooth condition A coal tar preparation applied cold or an oil can be and it if applied by the tarra farm employees the cost should not exceed seven or eight cents a square yard for materials the compacted gravel or stone road should be thoroughly cleaned of dust and the bitumen applied with ordinary sprinkling pots from the perforated nozzle has been removed and the spout carefully flattened into a symmetrical rectangular tangular ec opening about one quarter J 6 01 ri 41 surface treatment of macadam road with bituminous material and stone chips of an inch wide so that the material may be poured in a broad flat stream if a large amount of work is to be done a specially designed pouring can may be pur purchased clias ed of dealers in road equipment care should be taken to have an even distribution and the quantity applied should be approximately one halt half gall gallon on to a square yard of road surface after applying the bituminous material clean gravel or stone chips should be spread evenly over ever the surface and if possible rolled with a lan lav n or field roller where gravel or chips are not available clean coarse sand will serve as covering material it should be spread in sufficient nt quantity to prevent the bituminous material from adhering to tires of passing vehicles attention Is called to the fact that this treatment shoud not be made where from the stables or barns wil flow oer o er kr it where mud holes are likely to ta form around hitching posts or at stable entrances if a more durable pavement is desired a section of concrete slab should be laid |