Costing and Estimation ofWorks - Afforestation, Reforestation and Forest Restoration in Arid and Semi-arid Tropics - page 124

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

Unskilled Semi-skilled Skilled

(vi) S6 100 nos. 600

(vii) S7 100 nos. 1,200

Beds of size 1 × 10 × 0.40 m in soils of hardness class:

(i) S1 100 nos. 160

(ii) S2 100 nos. 177

(iii) S3 100 nos. 200

(iv) S4 100 nos. 267

(v) S5 100 nos. 400

(vi) S6 100 nos. 800

(vii) S7 100 nos. 1,600

2-2 Dressing or squaring of beds in season, including removal of scraped or excavated soil, to

restore beds to their original size and shape

100 nos. 20

2-3 Construction of raised beds made of stone slabs laid on edge and jointed with pointing in 1:4

cement sand mortar, including curing, and filling inter-bed space with clay or gravel and
levelling and compacting it:
(a) Beds of size 10 × 1 × 0.30 m 100 nos. 100 10 10

(b) Beds of size 10 × 1 × 0.40 m 100 nos. 120 10 10

2-4 Levelling of sloping ground to form it into terraces in order to prepare it for laying of nursery

beds, original slope being 5-20 ◦ , and soil being of standard hardness class:
(a) S3

100 m 2

9 1

100 m 2

(b) S4 14 1

100 m 2

(c) S5 15 1

100 m 2

(d) S6 17 1

2-5 Site clearance for establishment of nursery, including clearing and uprooting growth of shrubs,

thorns, etc., refilling and levelling the pits so formed, and collecting and stacking
brushwood or branches, etc. separately, in
(a) Area having dense undergrowth with more than 200 clumps or shrubs per hectare 100 m 2 2

(b) Area having open undergrowth with less than 200 clumps or shrubs per hectare 100 m 2 1