Asphaltum—Ventura and other California asphalts, $20.00 to $23.00 per ton at New York; Trinidad refined, $22.00 to $25.00 per ton; Venezuela asphalt, $25.00 to $60.00 per ton; Ber muda asphalt, $25.00 to $35.00.
Brick—At yards, per thousand, common soft, $5.00 to $7.00; hard, $7.00 to $9.00; vitrified (hard-burned), paving common, $8.00 to $12.00; special, $15.00 to $20.00; select red, not pressed, $8.00 to $10.00; pressed, $14.00 to $18.00; Roman, $30.00; firebrick, $14.00. Freight on bricks is about $2.00 per thousand for 50-mile run.
Bronze—Phosphor, in place, about 40 cents per pound.
Cast Iron—Pig iron, $19.00 to $22.00 per long ton.
Cast-iron counterweights, to 2 cents per pound, delivered.
Cast-iron pipe, $33.00 to $38.00 per ton, de livered; laid, $38.00 to $45.00 per ton.
Standard and plain castings, to cents per pound in place. Special castings, large or ders, 3 to 5 cents per pound in place; small or ders, 5 to 10 cents.
Cement—Portland, $1.50 to $2.00 per barrel, 400 pounds. Rosendale, 80 cents to $1.00 per barrel, 300 pounds.
Large users of Portland cement pay less than $1.50 per barrel for domestic brands. On small orders, freight and handling increase the cost.
Cement Finish—Portland, mortar inch thick, 50 to 80 cents per square yard.
Clay—Fireclay, dry powder, $1.50 per ton, delivered on cars; calcined fireclay, $3.00 to $4.00 ton.
For puddle, $1.50 per cubic yard, delivered. Concrete—Natural cement, $3.00 to $5.00 per cubic yard in place.
Portland cement in large mass, easily de posited, $4.00 to $7.00 per cubic yard. Walls re quiring difficult forms, $6.00 to $8.00 per cubic yard. Tunnels, etc., $10.00 to $12.00 per cubic yard.
The cost of 1:3:6 Portland cement concrete may be analyzed as follows: This is with the use of a mechanical mixer. Hand-mixing would probably cost from 70 cents to $1.25 per cubic yard.
Reinforced concrete, including steel, usually costs from $10.00 to $20.00 per cubic yard. Con crete should be estimated at $5.00 to $10.00 per cubic yard place; steel, about 2.5 cents per pound in place (plain structural steel) ; forms, 5 to 10 cents per square foot. The unit-cost of con crete will depend upon the difficulty of handling and placing.
Copper-14 to 15 cents per pound.
Curb—Cement and sand, 1:3, 25 to 50 cents per linear foot, about cent per square inch of section per linear foot, in place.
Sandstone and limestone, 50 cents to $1.00 per linear foot, in place.
Bluestone, $1.00 to $1.50 per linear foot, in place.
Granite, $1.00 to $2.50 per linear foot, in place.
Curved curbs, in stone, 20 per cent to 10 per cent extra.
Resetting curb, 10 to 50 cents per foot.
Dredging—Soft material, 12 to 30 cents per cubic yard; gravel and hard material, 30 cents to $1.00 per cubic yard. In "Engineering News," Sept. 20, 1906, a report is given of some dredging done by the U. S. government engineers with hydraulic dredges (New York Harbor) which cost only 5.274 cents per cubic yard.
Steam shovel work costs about 12 to 20 cents per cubic yard. In "Engineering Record" (Vol. 54, p. 732), some data are given from a paper by Mr. John C. Sessor on steam shovel work on the C., B. & Q. Railway. On one job of 251,711 cubic yards, 1,104 cubic yards was moved per 10-hour shift. The cost was as fol lows: Equipment, 1 cent; steam shovel service, 8.9 cents; temporary trestle, 3.6 cents; track and track work, 5 cents; supervision and engineer ing, 0.2 cent; total, 18.7 cents, all per cubic yard.
On another job of 188,240 cubic yards, 946 cubic yards was moved per 10-hour shift. The cost was as follows: Equipment, cents; steam shovel service, 9.6 cents; temporary trestle, 3.1 cents; track and track work, 4.2 cents; supervision and engineering, 0.3 cent; total, 18.7 cents, all per cubic yard.
The Illinois Central Railway estimates exca vating in earth, in jobs below 50,000 cubic yards, to cost 25 cents per cubic yard, and in larger jobs 20 cents per cubic yard, adding in both cases 1 cent per cubic yard per 100-foot haul.