12 



BULLETIN 300, IT. S. DEPABTMENT OF AGBICULTUEE. 



Hull: Labor and material $1, 803. 23 



Machinery: 



Material 4, 800. 00 



Freight 379. 10 



Drayage 72. 60 



Installing 310. 60 



Extra equipment (forge tools, etc.) 80. 00 



Lighting equipment (engine and dynamo and wiring) 207. 00 



7, 652. 53 



In Colorado, a dipper dredge having a 24 by 75 foot hull, 1^-yard 

 dipper, and 50-foot boom, was used in cleaning out and enlarging 

 about 20 miles of canal. The equipment, complete, including cook 

 and bunk boats, cost $16,500. Two shifts of 11 hours each were run. 

 During the year for which the data are given the dredge was actually 

 in operation but 187 days, or 58 per cent of the total working days. 

 The following crew were paid the given rates per month, including 

 board: Head runner, $120; 1 runner, $110; 2 cranemen at $55; 2 

 firemen at $45; 2 deckhands at $40; 1 teamster, $40; 1 cook, $50. 

 No right-of-way clearing was required. The water for the boiler was 

 taken from the canal, and as a result considerable trouble was 

 experienced from mud and scale. The cost data below are based on 

 the amount of material moved from inside the grade stakes during 

 the year, amounting to 394,387 cubic yards. It was estimated that 

 an excess of 25 per cent was actually moved. The following was the 

 cost of the work for one year: 



Operation : 



Labor operating dredge $6, 243. 70 



Coal, including freight, 1,276.65 tons, at $2.35 3, 000. 13 



Hauling coal, 1,276.65 tons, at 82J cents 1, 053. 24 



Oil, waste, and miscellaneous supplies ' 692. 80 



Cost of controlling water to float dredge 369. 24 



Repairs, labor, and material 3, 894. 67 



Removing and replacing bridges 837. 7S 



Interest and depreciation 6, 765. 00 



22, 856. 56 

 Cost per cubic yard, $0,058. 



Miscellaneous expenses: 



Engineering and supervision $1, 856. 10 



Building up ditch bank and making road on top 4, 721. 75 



Right of way and legal expenses 190. 42 



6, 768. 27 

 The cost of the dredging outfit was as follows: 



Hull- 

 Material $1, 960. 83 



Labor, including hauling 1, 959. 99 



Machinery: 



Cost, including freight 9, 997. 72 



Eauling and installing 817. 55 





