Page 138 - Microsoft Word - 20120528 Unesco study

Appendix 5: Cost calculations Traditional

constructions

Step 1: Excavation and preparation
After a flood the destroyed road have to be cleaned from left overs and other washed
material. The trace has to be excavated or filled up.
The costs are strongly depending per situation. For this study are the average costs estimated
on base of expert judgment.

In table 3.1 is a calculation made for the preparation costs of 1m3.

1 EXCAVATION / PREPARATION OF THE SITE

Labor (description): AMOUNT UNIT SALARY COST IN MEXICAN PESOS
Crew No. 1 (1.00 Assistant) wage
Assistant 1,00000 wage $ 294,05 $ 294,05
Specialized foreman (cape) 0,20000 wage $ 949,47 $ 189,89
Minor tools 0,03000 (%)labor $ 483,94 $ 14,52
Factor of safety equipment 0,05000 (%)labor $ 483,94 $ 24,20
addition $ 522,66
EFFICIENCY 80,00000
3
COST IN MEXICAN PESOS for labor [m ]: $ 6,53

Equipment (DESCRIPTION): AMOUNT UNIT RENT COST IN MEXICAN PESOS
Excavator, Caterpillar 350L 0,02500 hour $ 1.200,00 $ 30,00

3
COST IN MEXICAN PESOS FOR EQUIPMENT [m ] $ 30,00

TOTAL COSTS
Direct cost $ 36,53
Indirect 6,47% $ 2,36
Field indirect 4,00% $ 1,46
Subtotal $ 40,36
Funding 0,25% $ 0,09
Subtotal $ 38,03

Utility 10,53% $ 4,00
Additional Charges
0,50% $ 0,19
3
U N I T A R Y C O S T [m ] $ 42,22
Table 1: Unitary costs step 1

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