Costing and Estimation ofWorks - Afforestation, Reforestation and Forest Restoration in Arid and Semi-arid Tropics - page 163

Table 7.3 (continued)
Sr. No. Item Designation Specification See figure

BW-3 Wooden posts 1.85 m, 5 strands, 4 m spacing 20-3

BW-4 Iron posts 1.5 m, 3 strands, 6 m spacing 20-3

BW-5 Iron posts 1.5 m, 4 strands, 5 m spacing 20-3

BW-6 Iron posts 1.65 m, 6 strands, 3 m spacing 20-3

BW-7 RC posts 1.75 m, 4 strands, 4 m spacing 20-3

BW-8 RC posts 2.25 m, 6 strands, 4 m spacing 20-3

BW-9 RC posts 2.60 m, 8 strands, 5 m spacing 20-3

0.30 m, sectional area 0.09 m 2 8 Section of contour trench CT-1 Square 0.30 × 21-1

0.35 m, sectional area 0.1225 m 2 CT-2 Square 0.35 × 21-1

0.45 m, sectional area 0.2025 m 2 CT-3 Square 0.45 × 21-1

Triangular: lower edge depth 0.30 m, width 1.2 m, sectional area 0.18 m 2 9 Section of contour V-ditch VD-1 21-1

Triangular: lower edge depth 0.45 m, width 1.2 m, sectional area 0.27 m 2 VD-2 21-1

0.45 m, sectional area 0.2025 m 2 ; LC coping on top 10 Section of contour dyke CD-1 Wall section 0.45 × 21-3

0.075 m, sectional area 0.03375 m 2 0.45 ×

0.60 m, sectional area 0.27 m 2 ; LC coping on top
0.45 × 0.075 m, sectional area 0.03375 m 2

CD-2 Wall section 0.45 × 21-3

Top width 0.45 m, bottom width 2.00 m, height 0.60 m, sectional area 0.74 m 2 11 Section of contour bund CB-1 21-4

Top width 0.45 m, bottom width 2.00 m, height 0.75 m, sectional area 0.93 m 2 CB-2 21-4

Top width 0.45 m, bottom width 2.60 m, height 0.80 m, sectional area 1.28 m 2 CB-3 21-4

Top width 0.60 m, bottom width 3.12 m, height 0.85 m, sectional area 1.56 m 2 CB-4 21-4

Top width 0.60 m, bottom width 4.25 m, height 0.90 m, sectional area 2.18 m 2 CB-5 21-4

Width 4.5 m, stone pitching on risers, tread inward sloping 5 ◦ 12 Section of bench terrace BT-1 21-4

Width 1 m, inward slope of 5 ◦ 13 Gradone GD-1

0.35 × 0.35 × 0.35 m, volume 0.0429 m 3 14 Planting pits P-1 21-2

0.45 × 0.45 × 0.45 m, volume 0.0911 m 3 P-2 21-2

P-3 Top section 0.50 × 0.50 m, bottom section 0.40 × 0.40 m, depth 0.45 m,

volume 0.0911 m 3

21-2

× ×

0.50 m, volume 0.125 m 3 P-4 0.50 0.50 21-2

× ×

0.60 m, volume 0.216 m 3 P-5 0.60 0.60 21-2

× ×

1.00 m, volume 0.5625 m 3 P-6 0.75 0.75 21-2