Costing and Estimation ofWorks - Afforestation, Reforestation and Forest Restoration in Arid and Semi-arid Tropics - page 139

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

Unskilled Semi-skilled Skilled

(v) S5 1,000 nos. 247

(vi) S6 1,000 nos. 498

(vii) S7 1,000 nos. 992

(f) Pits being of standard size P-6 (0.5625 m 3 ), and the soil being of hardness class:
(i) S1

1,000 nos. 262

(ii) S2 1,000 nos. 288

(iii) S3 1,000 nos. 328

(iv) S4 1,000 nos. 433

(v) S5 1,000 nos. 642

(vi) S6 1000 nos 1,298

(vii) S7 1,000 nos. 2,583

4-4 Construction of contour dyke-cum-terrace of standard section on rocky hill slopes, from

locally available stones, including excavating and filling soil to form terrace, with average
lead of 30 m, and coping the dyke wall with lime concrete 1:2:6, where
(a) Stones are made available in stack on site, such as those already transported by tractor,
etc., and the dyke is of standard section:
(i) DT-1 100 m 22 2

(ii) DT-2 100 m 32 2

(b) Stones have to be collected and fetched from an average distance of 100 m, and the dyke
is of standard section:
(i) DT-1 100 m 32 2

(ii) DT-2 100 m 45 2

(c) Stones have to be collected and fetched from an average distance of more than 100 m but
less than 250 m, and the dyke is of standard section:
(i) DT-1 100 m 34 2

(ii) DT-2 100 m 48 2

(d) More than 50 % stones have to be split/cleaved from ground with a crowbar or pickaxe,
and the dyke is of standard section:
(i) DT-1