───────────┬────────┬───────────┬─────────┬─────────┬──────────┬──────── │ │ │ │ General │ │ │ │ When │ │condition│ Are any │ Consecutive│Width of│constructed│ Dated │ of │ urgent │ Number. │roadway.│ or arched │when last│ Bridges │ repairs │REMARKS. │ │ over. │repaired.│ or │necessary.│ │ │ │ │Culverts.│ │ │ │ │ │ │ │ ───────────┼────────┼───────────┼─────────┼─────────┼──────────┼──────── 1 │ 16′ │ arched │ │ │ │ │ │ 1888–89 │ │ │ │ ───────────┴────────┴───────────┴─────────┴─────────┴──────────┴──────── APPENDIX H. CORPORATION OF CALCUTTA. _Specification and conditions for surfacing roads MacCabe’s Tar-Macadam._ MATERIALS. 1. MacCabe’s tar-mac consists of 2 inches Pakoor stone metal, MacCabe’s patent bituminous binder of Gas Co.’s coal-tar and “Stag” brand English coal pitch in the proportion of one of tar to three of pitch by weight, with stone chippings and sand as top binder. PREPARATION OF THE FOUNDATION. 2. Prior to resurfacing an old stone road with the composition all irregularities in its surface, gradients or crow-fall should be corrected, and special care taken to rectify defects, if any, in all its drainage and water adjuncts, and also remedy any weakness in the foundation due to bad restoration by the road cutting agencies. RULES FOR SURFACING ROADS. 3. (i) Collect all necessary aforesaid materials including tools and implements for laying them _in situ_. (ii) Sketch out the road area to be treated in convenient sections. (iii) Suspend road watering on the previous day in the section to be treated first and barricade or fence it off. (iv) Thread out the area to be treated with the patent composition, as this will avoid feather edge in the centre tar-mac joint. (v) Form separate labour gangs for— (_a_) Weighing, mixing, and heating pitch and tar—three men for each tar-heating boiler or cylinder. (_b_) General cleaning and sweeping with rough country or English bass brooms, and removing fine dust off the road surface before treatment by means of soft floor brush. (_c_) Carrying pitch and tar composition in pails or buckets and laying it hot half inch thick on dry and clean road surface. (_d_) Carrying stone metal in cane baskets, spreading and hand-packing the same carefully to the required chamber, one man for every three feet of road width to be so treated. ROLLING.