Costing and Estimation ofWorks - Afforestation, Reforestation and Forest Restoration in Arid and Semi-arid Tropics - page 129

Table 7.1 (continued)
Sr. No. Item specifications Unit of work Required man-days

Unskilled Semi-skilled Skilled

(a) Vehicle height is less than 1.2 m, such as bullock cart, and polypots are of size:
(i) 7 × 20 10,000 nos. 2

(ii) 10 × 25 10,000 nos. 5

(iii) 12 × 30 10,000 nos. 8

(iv) 20 × 40 10,000 nos. 20

(v) Extractors: 20 dia. × 40 ht 10,000 nos. 80

(vi) Extractors: 25 dia. × 45 ht 10,000 nos. 120

(b) Vehicle height is more than 1.2 m, such as truck, etc. and polypots are of size:
(i) 7

×

20 10,000 nos. 3

×

(ii) 10 25 10,000 nos. 7

(iii) 12 × 30 10,000 nos. 12

(iv) 20 × 40 10,000 nos. 30

(v) Extractors: 20 dia. × 40 ht 10,000 nos. 120

(vi) Extractors: 25 dia. × 45 ht 10,000 nos. 180

2-42 Budding or grafting of plants in nursery, including extraction of bud or graft from mother

plant and fixing the same on incision as required

10,000 nos. 60

Part-3: Fences

3-1 Laying of dry-stone masonry in wall for fence, with compact and interlocked structure and

suitable openings for drainage of rainwater as required, with voids not more than 5 % of
total volume, with stones of irregular shape as available, when
(a) Stones are made available in stack on site, such as those already transported by tractor
etc, and the wall is of standard section:
(i) SW-1 100 m 42

(ii) SW-2 100 m 56

(iii) SW-3 100 m 38 3

(b) Stones have to be collected and fetched from an average distance of 100 m, and the wall
is of standard section:
(i) SW-1