Engineering and Contracting . has been extensivelyemployed for culverts across street intersections, and fre-quently has been laid diagonally underneath sidewalks atthe corners, thus serving to avoid several difficultieswhich are encountered in some installations; but, so faras I know, the plan of caring for drainage by laying partcircle corrugated culverts with concrete bases, for longdistances underneath the sidewalks is original in LosAngeles. There are a number of localities in this citywhere this method has proven very ten gage corrugated iron is employed at thestreet
Engineering and Contracting . has been extensivelyemployed for culverts across street intersections, and fre-quently has been laid diagonally underneath sidewalks atthe corners, thus serving to avoid several difficultieswhich are encountered in some installations; but, so faras I know, the plan of caring for drainage by laying partcircle corrugated culverts with concrete bases, for longdistances underneath the sidewalks is original in LosAngeles. There are a number of localities in this citywhere this method has proven very ten gage corrugated iron is employed at thestreet crossings and number sixteen or number fourteenunder the sidewalks. CHART FOR DETERMINING QUANTITY OF ROADOIL IN PARTLY FILLED TANKS. Contributed by E. Earl Glass. The graphic chart shown in the accompanying illustra-tion was prepared by the writer for the quick determina-tion of the quantity of liquid in a partly filled horizontaltank. It has proved very useful for measuring part tanks Contents in Cu Ft ^ ~J — (VJ IVj C\j,. a ^ O Ci•o lO f? « S| § I Contents 7 GoUons 5 ^ E&C Chart for Determining Quantity of Road Oil In Partly Filed Tanks. of road oil. The following example shows the method ofuse: 3^2 ft. of oil are measured in a 434-ft. diameter tank 1,100 gal. capacity. Then = .74 d = depth of oil. the horizontal line at 1,100 gal. curve, read 890gal. contents. REPAIRING PAVEMENT CUTS. The Ottawa Gas Co. of Ottawa, Ont., is repairing itspavement cuts at an average cost of 20 cts. per sq. methods used are described as follows by Mr. P. , Superintendent of the Service Department, in apaper presented at the recent annual convention of theCanadian Gas Association: When cutting pavement, we first take off the asphalt,lay it to one side, then take out the concrete, and lay itout of the way. When the work of repairing has been fin-ished, the hole is filled up again, tamping everything backas before. We then mix the old concrete with about twobag
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