IXUST PKEVENTION AND ROAD PRESERVATION, 1915. 



23 



PRICES OF LABOR AND MATERIALS. 



The above cost data are based upon the following unit costs for 

 labor and for materials (f . o. b. nearest siding) : 



Common labor, per day, $1 to $2. 

 Skilled labor, per day, $2.50 to $3. 

 Teams, per day, |4 to $4.50. 

 Foremen, per day, $2 to $2.50. 

 Carpenters, per day, 12.25 to $4.50. 

 RoUermen, per month, $65 to $75. 

 Mixing-plant engineer, per month, $80. 

 Motor-truck drivers, per month, $100. 

 Steamshovel engineer, per month, $150. 

 Foremen, per month, $75 to $150. 

 Timekeeper, per month, $80. 

 Superintendent, per month, $150. 

 Sandstone, all sizes, per ton, $1.37. 

 Gneiss, 1^-inch, per ton, $1.21. 

 Gneiss, |-inch, per ton, $1.25. 

 Gneiss chips, per ton, $1.85. 

 Trap, IJ-inch, per ton, $1.25. 

 Trap, f-inch, per ton, $1.45. 

 Trap chips, per ton, $1.85. 

 Granite, all sizes, per ton, $1.43. 

 Gravel, pit-run, per ton, $0.06f . 

 Gravel, pea, per ton, $1.11. 

 Asphalt A, per gallon, $0,123 and $0,127. 



Asphalt B, per gallon, $0,127. 

 Asphalt X. per gallon, $0.65. 

 Asphalt Y, per gallon, $0,059. 

 Refined tar, per gallon, $0,100. 

 Cement, per barrel, $1.65. 

 Washed gravel, per ton, $0.95. 

 Sand, per ton, $0.83. 

 Lumber, per thousand, $17 to $26. 

 Reinforcing steel, per pound, $0.02. 

 Coal, per ton, $3.75 to $4.25. 

 Wood, fuel, slabs, per load, $1. 

 Cast-iron pipe, 10-inch, per foot, $0.75. 

 Cast-iron pipe, 12-inch, per foot, $0.85 



and $0.88. 

 Cast-iron pipe, 16-inch, per foot, $1.16. 

 Cast-iron pipe, 18-inch, per foot $1.58. 

 Corrugated-metal pipe, 15-inch, per 



foot, $0.66f , $0.67, $0.99i^, and $1.00. 

 Corrugated metal pipe, 18-inch, per 



foot, $0.65, $0.78J, and $1.15. 

 Corrugated metal pipe, 24-inch, per 



foot, $0.93f and $1.26. 



Additional items of depreciation, repairs, interest, and rental on equipment: 



Steam shovel $735. 00 



Industrial railway equipment 200. 00 



Pile driver 50. 00 



Mixing plant 65L 21 



Penetration equipment 208. 00 



Rollers 750. 00 



Wagons 105. 00 



Plows, scarifier, hand tools, scales 421. 50 



Table 23 gives the results of a traflB.c census taken before and after 

 improvement of the road. 



Table 23. — Volume and character of traffic on Mount Vernon Avenue at Mount Ida. 



Average before 

 improvement.! 



North. South 



Average after 

 improvement.^ 



North. South. 



Loaded 1-horse wagon 



UnloafJed 1-horse wagon 



Loaded 2-horse wagon 



Unloadci 2-horse wagon. . . 



Loaded 4-horse wagon 



Unloaded 4-horse wagon. . . 



1-horse pleasure vehicle 



2-horse pleasure vehicle 



Uubber-lired horse vehicle. 



Saddle horse 



Motor cycle 



Excessively heavy vehicle. 



Motijr runabout 



Motor touring car 



Ivoaded motor dray 



Unloa/ied motor dray 



» Average of 8 days In March and 7 days In June, 1915. ' Average of 7 days in December, 1915. 



