Costing and Estimation ofWorks - Afforestation, Reforestation and Forest Restoration in Arid and Semi-arid Tropics - page 136

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

Unskilled Semi-skilled Skilled

3-30 Inspection path

Preparation of motorable inspection path in plantation area, 3 m wide, where feasible,
including clearing of shrubs, levelling pits, and removal of large boulders etc., and marking
its borders with whitewashed stones lined at 1 m interval:
(a) In highly rugged or hilly terrain 1,000 m 2 22

1,000 m 2 (b) In rolling terrain with medium slopes 15

1,000 m 2 (c) In flat or slightly undulating terrain 8

Part-4: Soil and water conservation works

4-1 Excavation of contour trench on alignment marked in field, including forming of excavated

soil into a bund along the edge of the trench on the lower side according to ground slope:
(a) Trench being of standard section CT-1 (0.09 m 2 ), and the soil being of hardness class:
(i) S1 1,000 m 36

(ii) S2 1,000 m 40

(iii) S3 1,000 m 45

(iv) S4 1,000 m 60

(v) S5 1,000 m 90

(vi) S6 1,000 m 180

(b) Trench being of standard section CT-2 (0.1225 m 2 ), and the soil being of hardness class:
(i) S1 1,000 m 49

(ii) S2 1,000 m 54

(iii) S3 1,000 m 61

(iv) S4 1,000 m 82

(v) S5 1,000 m 122

(vi) S6 1,000 m 245

(c) Trench being of standard section CT-3 (0.2025 m 2 ), and the soil being of hardness class:
(i) S1 1,000 m 81

(ii) S2 1,000 m 90

(iii) S3 1,000 m 101