ANNUAL DEPRECIATION



PERCENTAGE OF ANNUAL DEPRECIATION AND M & R 

Sl No  Name of sub - work 

% o M &R

LifeinYears %ofAnnualDepreciation 
1 Earthen dam and Embankment  3 / 4 67 1 -  1/2
2 Masonry Aqueduct 1 / 2 67 1 - 1/2
3 Masonry work for Intake / outlet  1 / 2 50 2
4 Masonry Dam  1 / 2 100 1
5 Open wells  1 50 2
6 Bore wells  2 20 5
7 Infiltration Gallery  3 50 2
8 Oil Engine  2 -1/2 15 6  - 2/3
9 Electrical Engine 2 -1/2 20 5
10 Compressed air pump  3 15 6  - 2/3
11 Steam Engine Drive pump 3 25 4
12 C.I and M S pipes  1 / 4  50 2
13 A.C, Prestressed and Hume pipes  1 / 4  33 3
14 Unprotected steel pipes  1 / 2 50 2
15 G.I  pipes 1 20 5
16 Rapid sand Gravity filter  2 25 4
17 Rapid pressure filter  2 - 1/2 20 5
18 Semi rapid filter  1- 1/2 33 3
19 Sewage treatment plant and equipments  2 20 5
20 Temporary Building  2- 1/2 15 6-  2/3
21 Permanent Building  1 50 2
22 R. C. C    E .S. R  1/2 67 1- 1/2
23 R.C.C Under ground tank  3/4 67 1- 1/2
24 Pressed Steel ESR  1- 1/2 25 4
25 Under Ground Masonry Service Reservoir 1 50 2
26 Approach road  3 33 3
27 Wire fencing 3 25 4
28 Telephone line  5 25 4
29 Transmission line  4 25 4
30 Water meter and Meter House 5 10 10
31 Transformer  5 25 4
32 Water course in earth cutting   2 / 3 50 2
33 Connecting pipe 1 / 4 50 2
34 Chlorination Arrangement  2 - 1 / 2 15 6-  2/3
35 Canal Intake  1/2 50 2

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