Table 8 Cost-Benefit ratio (CBR) calculation for the creation of a coastal reservoir at Malpe to address seasonal water scarcity for irrigation and drinking water use.

From: Developing rejuvenation strategies and artificial flood mitigation plans for Indrani River: a case study

Creating coastal reservoir

Sl no

Costs incurring

Sum costs (INR)

Benefits incurring

Sum benefits (INR)

CBR

1

Construction costs

6,00,00,00,000

Water security

1,30,00,00,000

 

2

Land acquisition

1,30,00,00,000

Flood management

63,00,00,000

 

3

Water treatment facilities

70,00,00,000

Economic growth

50,00,00,000

 

4

Environmental impact mitigation

63,00,00,000

Environmental Conservation

40,00,00,000

 

5

Operational and maintenance costs

15,00,00,000

Improved Public health

25,00,00,000

 

6

Nil

Nil

Sustainable urban development

35,00,00,000

 
 

Total

8,78,00,00,000

 

3,43,00,00,000

0.390661